Masashi Sada
type: MusicGroup
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
description: is a Japanese singer, lyricist, and composer. Sada formed the folk duo Grape with Masami Yoshida in 1972, and they made their debut as recording artists a year afterward. The pair rose to fame owing
popularity: 44
followers: 175868
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x916be4751c184fa4476ac3e54a11864f7e5eba14d493b6e4348d087989e357ab
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/a5f26eeb-9ed1-488e-b9d1-1e2517e97963.ots
additional property: OTSRecordURL
  type: PropertyValue
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a5f26eeb-9ed1-488e-b9d1-1e2517e97963
additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916be4751c184fa4476ac3e54a11864f7e5eba14d493b6e4348d087989e357ab. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5f26eeb-9ed1-488e-b9d1-1e2517e97963.json and https://artists.proofprofile.net/proofs/artist/a5f26eeb-9ed1-488e-b9d1-1e2517e97963.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
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album: 帰去来
  type: MusicAlbum
  date published: 1976-11-25
  track: 夕凪
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    by artist: Masashi Sada
    in album: 帰去来
      type: MusicAlbum
      date published: 1976-11-25
    genre: enka
    genre: folk
    genre: j-pop
    genre: kayokyoku
    isrc code: JPWP00401918
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T12:14:37Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79697de9b36107722782d55500ea4407f2411dc70f90d128a10b8ad901b3325. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401918.
      date published: 2026-07-18T12:14:37Z
    audio: 夕凪
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
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        type: PropertyValue
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      additional property: Mode (Major/Minor)
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      additional property: Time Signature
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      additional property: Danceability
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      additional property: Energy
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        type: PropertyValue
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      additional property: Acousticness
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      additional property: Liveness
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      additional property: Loudness (dB)
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  track: 童話作家
    type: MusicRecording
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    by artist: Masashi Sada
    in album: 帰去来
      type: MusicAlbum
      date published: 1976-11-25
    genre: enka
    genre: folk
    genre: j-pop
    genre: kayokyoku
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T01:18:30Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
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      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf295bef60b8161cba453a07176bd29c7f913dd4af4663611ac14f9bdc1824e2. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401919.
      date published: 2026-07-19T01:18:30Z
    audio: 童話作家
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      additional property: Time Signature
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      additional property: Danceability
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      additional property: Energy
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      additional property: Speechiness
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      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: 絵はがき坂
album: 帰去来 (2016 Remaster)
album: 私花集 (アンソロジィ) [2016 Remaster]
album: 私花集＜アンソロジイ＞
album: 風見鶏
album: 風見鶏 (2016 Remaster)
album: 随想録 vol.1
album: 随想録 vol.2
album: 夢供養
album: 印象派
album: うつろひ
album: 昨日達…
album: 夢の轍
album: 風のおもかげ
album: 書簡集 vol.9
album: 書簡集 vol.8
album: 書簡集 vol.4
album: 書簡集 vol.2
album: 書簡集 vol.6
album: 書簡集 vol.7
album: 書簡集 vol.1
album: 書簡集 vol.3
album: 書簡集 vol.10
album: 書簡集 vol.5
album: Glass Age
album: 親展（LIVE） Vol.2
album: 親展（LIVE） Vol.1
album: ADVANTAGE
album: 1000回記念コンサート・ライヴ Vol.1
album: 1000回記念コンサート・ライヴ Vol.3
album: 1000回記念コンサート・ライヴ Vol.2
album: 自分症候群
album: 帰郷
album: 夢回帰線
album: 風待通りの人々
album: 夢の吹く頃
album: 十五周年漂流記 Vol.2 (Live)
album: 十五周年漂流記 Vol.1 (Live)
album: 夏・長崎から'89
album: 夢ばかりみていた
album: 夢回帰線II
album: 家族の肖像
album: さだまさし白書 Vol.2 (Live)
album: さだまさし白書 Vol.1 (Live)
album: さだまさし白書 Vol.3 (Live)
album: ほのぼの
album: LIVE 二千一夜 Vol.3
album: LIVE 二千一夜 Vol.2
album: LIVE 二千一夜 Vol.1
album: 逢ひみての
album: のちのおもひに 第3夜 Vol.1
album: のちのおもひに 第1夜 Vol.1
album: のちのおもひに 第4夜 Vol.2
album: のちのおもひに 第3夜 Vol.3
album: のちのおもひに 第2夜 Vol.2
album: のちのおもひに 第1夜 Vol.2
album: のちのおもひに 第2夜 Vol.1
album: のちのおもひに 第1夜 Vol.3
album: のちのおもひに 第4夜 Vol.3
track: 北の国から‐遥かなる大地より‐

北の国から‐遥かなる大地より‐
type: MusicRecording
duration: PT1M26S
duration ms: 86066
explicit: false
by artist: Masashi Sada
by artist: Tokyo Kosei Wind Orchestra
by artist: 立花直樹
in album: ブラバン！甲子園4
  type: MusicAlbum
  date published: 2010-01-01
isrc code: JPPO01061740
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956894
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO01061740
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:53:57Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aec8a1d76de5f2bfe2546657e1705dfc7940fa2e96024ff998edf8094382b2f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO01061740.
  date published: 2026-07-06T07:53:57Z
audio: 北の国から‐遥かなる大地より‐
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  additional property: Tempo (BPM)
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    value: 151.208
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.072
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
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Acousticness
type: PropertyValue
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Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.078

Valence (Positivity)
type: PropertyValue
value: 0.305

Loudness (dB)
type: PropertyValue
value: -10.231

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

絵はがき坂
type: MusicRecording
duration: PT3M50S
duration ms: 230413
explicit: false
by artist: Masashi Sada
in album: 帰去来
  type: MusicAlbum
  date published: 1976-11-25
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPWP00401921
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-06T03:05:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956891
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401921
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:16:32Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d51ea57ad96cd246088b262ae1a3db6abecbc77cfada801ea44b8c416406f4. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401921.
  date published: 2026-07-06T07:16:32Z
audio: 絵はがき坂
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.582
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.026
  additional property: Acousticness
    type: PropertyValue
    value: 0.742
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.028
  additional property: Liveness
    type: PropertyValue
    value: 0.063
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.779
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.801
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

帰去来 (2016 Remaster)
type: MusicAlbum
date published: 1976-11-25
track: 絵はがき坂 - 2016 Remaster
  type: MusicRecording
  duration: PT3M50S
  duration ms: 230106
  explicit: false
  by artist: Masashi Sada
  in album: 帰去来 (2016 Remaster)
    type: MusicAlbum
    date published: 1976-11-25
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPWP01671445
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T13:24:40+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8abcd78022d00f0060ca6edbc50d314b588f74b538b6307015b2dba176c672bd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958897
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958897
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP01671445
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T16:27:30Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8abcd78022d00f0060ca6edbc50d314b588f74b538b6307015b2dba176c672bd. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:27:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP01671445.
    date published: 2026-07-20T16:27:30Z
  audio: 絵はがき坂 - 2016 Remaster
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.592
    additional property: Energy
      type: PropertyValue
      value: 0.648
    additional property: Speechiness
      type: PropertyValue
      value: 0.026
    additional property: Acousticness
      type: PropertyValue
      value: 0.555
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.002
    additional property: Liveness
      type: PropertyValue
      value: 0.066
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.769
    additional property: Loudness (dB)
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    additional property: Key Name
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私花集 (アンソロジィ) [2016 Remaster]
type: MusicAlbum
date published: 1978-03-25
track: 最后の頁 (ページ) - 2016 Remaster
  type: MusicRecording
  duration: PT3M32S
  duration ms: 212866
  explicit: false
  by artist: Masashi Sada
  in album: 私花集 (アンソロジィ) [2016 Remaster]
    type: MusicAlbum
    date published: 1978-03-25
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPWP01671460
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T12:01:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6d83cad8f2c45d10b6641cc07b40772dda885ca5fcc5f1d7c668192616eb98b6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958547
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958547
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP01671460
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T12:44:05Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d83cad8f2c45d10b6641cc07b40772dda885ca5fcc5f1d7c668192616eb98b6. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP01671460.
    date published: 2026-07-18T12:44:05Z
  audio: 最后の頁 (ページ) - 2016 Remaster
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 141.188
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.472
    additional property: Energy
      type: PropertyValue
      value: 0.537
    additional property: Speechiness
      type: PropertyValue
      value: 0.027
    additional property: Acousticness
      type: PropertyValue
      value: 0.767
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.033
    additional property: Liveness
      type: PropertyValue
      value: 0.151
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.495
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.035
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 檸檬 (れもん) - 2016 Remaster
  type: MusicRecording
  duration: PT4M30S
  duration ms: 270893
  explicit: false
  by artist: Masashi Sada
  in album: 私花集 (アンソロジィ) [2016 Remaster]
    type: MusicAlbum
    date published: 1978-03-25
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPWP01671462
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T22:31:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x527a9170698c3388cb3042429bd7786eaff222eeb8961892a4a9756273c80437
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958340
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958340
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP01671462
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T00:53:26Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527a9170698c3388cb3042429bd7786eaff222eeb8961892a4a9756273c80437. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP01671462.
    date published: 2026-07-17T00:53:26Z
  audio: 檸檬 (れもん) - 2016 Remaster
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 123.138
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.518
    additional property: Energy
      type: PropertyValue
      value: 0.554
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.28
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.122
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.723
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.395
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: フェリー埠頭 - 2016 Remaster
  type: MusicRecording
  duration: PT6M15S
  duration ms: 375720
  explicit: false
  by artist: Masashi Sada
  in album: 私花集 (アンソロジィ) [2016 Remaster]
    type: MusicAlbum
    date published: 1978-03-25
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPWP01671464
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T12:34:51+00:00
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: フェリー埠頭 - 2016 Remaster
track: 檸檬 (れもん) - シングル・ヴァージョン; 2016 Remaster

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x838840c55d3c1994318d6a269a2a9f1283b8daa7edbc7ab53dfc569190a7648a

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956822

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956822

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP01671464

OTSTimestamp
type: PropertyValue
value: 2026-07-05T18:48:28Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838840c55d3c1994318d6a269a2a9f1283b8daa7edbc7ab53dfc569190a7648a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP01671464.
date published: 2026-07-05T18:48:28Z

フェリー埠頭 - 2016 Remaster
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 124.165
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.392
additional property: Energy
  type: PropertyValue
  value: 0.333
additional property: Speechiness
  type: PropertyValue
  value: 0.03
additional property: Acousticness
  type: PropertyValue
  value: 0.838
additional property: Instrumentalness
  type: PropertyValue
  value: 0.001
additional property: Liveness
  type: PropertyValue
  value: 0.096
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.156
additional property: Loudness (dB)
  type: PropertyValue
  value: -10.376
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

檸檬 (れもん) - シングル・ヴァージョン; 2016 Remaster
type: MusicRecording
duration: PT5M42S
duration ms: 342880
explicit: false
by artist: Masashi Sada
in album: 私花集 (アンソロジィ) [2016 Remaster]
  type: MusicAlbum
  date published: 1978-03-25
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPWP01671470
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-15T06:55:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x286f4bb361591590f8b17b3f740d53bc6e4a3d5b5efc481abc453dcf1fa052a9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958111
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958111
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP01671470
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-15T09:58:23Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286f4bb361591590f8b17b3f740d53bc6e4a3d5b5efc481abc453dcf1fa052a9. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:58:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP01671470.
  date published: 2026-07-15T09:58:23Z
audio: 檸檬 (れもん) - シングル・ヴァージョン; 2016 Remaster
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.111
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.509
  additional property: Energy
    type: PropertyValue
    value: 0.443
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.209
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.397
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.296
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.969
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

私花集＜アンソロジイ＞
type: MusicAlbum
date published: 1978-03-25
track: 檸檬<れもん>
  type: MusicRecording
  duration: PT4M31S
  duration ms: 271613
  explicit: false
  by artist: Masashi Sada
  in album: 私花集＜アンソロジイ＞
    type: MusicAlbum
    date published: 1978-03-25
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPWP00401937
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T21:09:15+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xaeb259afc16f4ba33dae0f7584feeb245a24887c5dbbb4aeb95c2f876fae4ad4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958783
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958783
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401937
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T00:07:45Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb259afc16f4ba33dae0f7584feeb245a24887c5dbbb4aeb95c2f876fae4ad4. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:07:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401937.
    date published: 2026-07-20T00:07:45Z
  audio: 檸檬<れもん>
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 122.9
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.527
    additional property: Energy
      type: PropertyValue
      value: 0.532
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.23
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.262
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.732
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.299
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor

風見鶏
type: MusicAlbum
date published: 1978-07-25
track: 最終案内
  type: MusicRecording
  duration: PT5M33S
  duration ms: 333880
  explicit: false
  by artist: Masashi Sada
  in album: 風見鶏
    type: MusicAlbum
    date published: 1978-07-25
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPWP00401925
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T20:33:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb19d7d8d1516a686ac05a030331e88d757f46d051465d39bd76db4a36f606ba0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956728
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956728
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401925
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:43:49Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19d7d8d1516a686ac05a030331e88d757f46d051465d39bd76db4a36f606ba0. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401925.
    date published: 2026-07-05T01:43:49Z
  audio: 最終案内
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 88.293
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.324
    additional property: Energy
      type: PropertyValue
      value: 0.452
    additional property: Speechiness
      type: PropertyValue
      value: 0.027
    additional property: Acousticness
      type: PropertyValue
      value: 0.722
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.004
    additional property: Liveness
      type: PropertyValue
      value: 0.074
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.349
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.394
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: つゆのあとさき
  type: MusicRecording
  duration: PT5M12S
  duration ms: 312120
  explicit: false
  by artist: Masashi Sada
  in album: 風見鶏
    type: MusicAlbum
    date published: 1978-07-25
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPWP00401926
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T07:38:47+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x64c4b710c43cb18961b0d7a839f6371c542b177b43fa1a23c72f59caaa5ca260
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956484
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956484
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401926
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T10:47:44Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c4b710c43cb18961b0d7a839f6371c542b177b43fa1a23c72f59caaa5ca260. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401926.
    date published: 2026-07-03T10:47:44Z
  audio: つゆのあとさき
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.455
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.405
    additional property: Energy
      type: PropertyValue
      value: 0.259
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.87
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.21
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.158
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.04
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: きみのふるさと
  type: MusicRecording
  duration: PT4M23S
  duration ms: 263746
  explicit: false
  by artist: Masashi Sada
  in album: 風見鶏
    type: MusicAlbum
    date published: 1978-07-25
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPWP00401928
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T16:15:54+00:00
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: きみのふるさと
track: セロ弾きのゴーシュ
track: 吸殻の風景
track: 晩鐘
track: 雨やどり

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xbce5dd2ee4baa3545697dccdf6bafc891f7afd3ec1858823ac69208ae990a097

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958436

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958436

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401928

OTSTimestamp
type: PropertyValue
value: 2026-07-17T16:42:22Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce5dd2ee4baa3545697dccdf6bafc891f7afd3ec1858823ac69208ae990a097. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401928.
date published: 2026-07-17T16:42:22Z

きみのふるさと
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 75.587
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.414
additional property: Energy
  type: PropertyValue
  value: 0.473
additional property: Speechiness
  type: PropertyValue
  value: 0.032
additional property: Acousticness
  type: PropertyValue
  value: 0.349
additional property: Instrumentalness
  type: PropertyValue
  value: 0.002
additional property: Liveness
  type: PropertyValue
  value: 0.127
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.631
additional property: Loudness (dB)
  type: PropertyValue
  value: -10.075
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major

セロ弾きのゴーシュ
type: MusicRecording
duration: PT5M35S
duration ms: 335493
explicit: false
by artist: Masashi Sada
in album: 風見鶏
  type: MusicAlbum
  date published: 1978-07-25
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPWP00401930
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T08:05:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe3552b40ad11f388dcc2a30388044bd8fce8087f92079a34b5e3ec1a7f3c7c43
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958700
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958700
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401930
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T08:09:50Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3552b40ad11f388dcc2a30388044bd8fce8087f92079a34b5e3ec1a7f3c7c43. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401930.
  date published: 2026-07-19T08:09:50Z
audio: セロ弾きのゴーシュ
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.551
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.344
  additional property: Energy
    type: PropertyValue
    value: 0.306
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.869
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.011
  additional property: Liveness
    type: PropertyValue
    value: 0.1
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.204
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.833
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

吸殻の風景
type: MusicRecording
duration: PT4M31S
duration ms: 271333
explicit: false
by artist: Masashi Sada
in album: 風見鶏
  type: MusicAlbum
  date published: 1978-07-25
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPWP00401932
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T20:27:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7094f26141aa4748392411c32803e9ef76538ed50a1b251f180fa8000c304081
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956857
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956857
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401932
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T01:26:17Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7094f26141aa4748392411c32803e9ef76538ed50a1b251f180fa8000c304081. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401932.
  date published: 2026-07-06T01:26:17Z
audio: 吸殻の風景
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 153.853
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.584
  additional property: Energy
    type: PropertyValue
    value: 0.73
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.279
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.191
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.711
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.954
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

晩鐘
type: MusicRecording
duration: PT5M4S
duration ms: 304733
explicit: false
by artist: Masashi Sada
in album: 風見鶏
  type: MusicAlbum
  date published: 1978-07-25
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPWP00401934
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-16T04:03:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4357f47d86d8b2c3f50c4f9706bd1126ea4e290a0b3c0c7ac651d86e847bf9ec
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958238
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958238
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401934
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-16T07:03:04Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4357f47d86d8b2c3f50c4f9706bd1126ea4e290a0b3c0c7ac651d86e847bf9ec. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:03:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401934.
  date published: 2026-07-16T07:03:04Z
audio: 晩鐘
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.748
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.341
  additional property: Energy
    type: PropertyValue
    value: 0.367
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.784
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.016
  additional property: Liveness
    type: PropertyValue
    value: 0.042
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.286
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.638
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

雨やどり
type: MusicRecording
duration: PT4M27S
duration ms: 267093
explicit: false
by artist: Masashi Sada
in album: 風見鶏
  type: MusicAlbum
  date published: 1978-07-25
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPWP00401976
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T04:53:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbf5faebb75b6a9a48ace8b3e2f5f64e66f9b9b1d9144203885c99240a1908def
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956856
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956856
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401976
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T01:25:57Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf5faebb75b6a9a48ace8b3e2f5f64e66f9b9b1d9144203885c99240a1908def. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401976.
  date published: 2026-07-06T01:25:57Z
audio: 雨やどり
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 75.136
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.462
  additional property: Energy
    type: PropertyValue
    value: 0.323
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.859
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.676
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.37
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.139
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

風見鶏 (2016 Remaster)
type: MusicAlbum
date published: 1978-07-25
track: 最終案内 - 2016 Remaster
  type: MusicRecording
  duration: PT5M33S
  duration ms: 333333
  explicit: false
  by artist: Masashi Sada
  in album: 風見鶏 (2016 Remaster)
    type: MusicAlbum
    date published: 1978-07-25
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPWP01671449
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T23:54:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa5cc1003e0f63bb24fa5169f11cf9e48f8bcf23b49cfd2b20ea4188fe935999a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956856
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956856
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP01671449
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T01:25:57Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cc1003e0f63bb24fa5169f11cf9e48f8bcf23b49cfd2b20ea4188fe935999a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP01671449.
    date published: 2026-07-06T01:25:57Z
  audio: 最終案内 - 2016 Remaster
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 88.025
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.34
    additional property: Energy
      type: PropertyValue
      value: 0.509
    additional property: Speechiness
      type: PropertyValue
      value: 0.027
    additional property: Acousticness
      type: PropertyValue
      value: 0.672
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.011
    additional property: Liveness
      type: PropertyValue
      value: 0.169
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.395
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.178
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 飛梅 (とびうめ) - 2016 Remaster
  type: MusicRecording
  duration: PT4M14S
  duration ms: 254453
  explicit: false
  by artist: Masashi Sada
  in album: 風見鶏 (2016 Remaster)
    type: MusicAlbum
    date published: 1978-07-25
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPWP01671451
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T22:17:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdc8b7f4ba80b82db5d5ff0b2b08fb8153c451b8c1b752a76a27c689e45afeed4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958690
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958690
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP01671451
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T07:14:39Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8b7f4ba80b82db5d5ff0b2b08fb8153c451b8c1b752a76a27c689e45afeed4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP01671451.
    date published: 2026-07-19T07:14:39Z
  audio: 飛梅 (とびうめ) - 2016 Remaster
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 141.344
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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随想録 vol.1
type: MusicAlbum
date published: 1979

随想録 vol.2
type: MusicAlbum
date published: 1979

夢供養
type: MusicAlbum
date published: 1979-04-10

随想録 vol.2
type: MusicAlbum
date published: 1979-11-10

随想録 vol.2
type: MusicAlbum
date published: 1979-11-10

随想録 vol.2
type: MusicAlbum
date published: 1979-11-10

随想録 vol.1
type: MusicAlbum
date published: 1979-11-10

随想録 vol.1
type: MusicAlbum
date published: 1979-11-10

印象派
type: MusicAlbum
date published: 1980-10-10

うつろひ
type: MusicAlbum
date published: 1981-06-25

昨日達…
type: MusicAlbum
date published: 1981-11-18
track: 道化師のソネット
  type: MusicRecording
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  explicit: false
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    date published: 1981-11-18
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-20T05:34:36Z
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昨日達…
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track: 檸檬
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-17T06:09:33Z
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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    value: 2026-07-16T03:46:09Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-16T03:46:09Z
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  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: 驛舎
track: 生生流転

OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ba191087c9684b9297cfe34cf2f2e52f96c440d2024e8f01124377ab63106b. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:07:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO00529900.
date published: 2026-07-21T05:07:19Z

驛舎
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additional property: Danceability
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生生流転
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genre: enka
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-05T18:48:28Z
audio: 生生流転
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夢の轍
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date published: 1982-12-11

風のおもかげ
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date published: 1983-11-30

書簡集 vol.9
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date published: 1984

書簡集 vol.8
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date published: 1984

書簡集 vol.4
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date published: 1984

書簡集 vol.4
type: MusicAlbum
date published: 1984-06-25

書簡集 vol.2
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date published: 1984-06-25

書簡集 vol.6
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date published: 1984-06-25

書簡集 vol.8
type: MusicAlbum
date published: 1984-06-25

書簡集 vol.7
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date published: 1984-06-25

書簡集 vol.1
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date published: 1984-06-25

書簡集 vol.3
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date published: 1984-06-25

書簡集 vol.4
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date published: 1984-06-25

書簡集 vol.9
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date published: 1984-06-25

書簡集 vol.8
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date published: 1984-06-25

書簡集 vol.1
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書簡集 vol.9
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date published: 1984-06-25

書簡集 vol.10
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date published: 1984-06-25

書簡集 vol.7
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date published: 1984-06-25

書簡集 vol.2
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date published: 1984-06-25

書簡集 vol.10
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date published: 1984-06-25

書簡集 vol.5
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date published: 1984-06-25

書簡集 vol.6
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date published: 1984-06-25

書簡集 vol.5
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date published: 1984-06-25

書簡集 vol.8
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date published: 1984-06-25

書簡集 vol.3
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date published: 1984-06-25

Glass Age
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date published: 1984-12-12

親展（LIVE） Vol.2
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date published: 1985-05-25

親展（LIVE） Vol.1
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date published: 1985-05-25

親展（LIVE） Vol.1
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date published: 1985-05-25

親展（LIVE） Vol.2
type: MusicAlbum
date published: 1985-05-25

ADVANTAGE
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date published: 1985-06-12

1000回記念コンサート・ライヴ Vol.1
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date published: 1985-09-25

1000回記念コンサート・ライヴ Vol.3
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date published: 1985-09-25

1000回記念コンサート・ライヴ Vol.3
type: MusicAlbum
date published: 1985-09-25

1000回記念コンサート・ライヴ Vol.1
type: MusicAlbum
date published: 1985-09-25

1000回記念コンサート・ライヴ Vol.2
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date published: 1985-09-25

1000回記念コンサート・ライヴ Vol.2
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date published: 1985-09-25

自分症候群
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date published: 1985-12-21

帰郷
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date published: 1986-10-19

夢回帰線
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date published: 1987-07-25

風待通りの人々
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date published: 1988-07-25

夢の吹く頃
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date published: 1989-01-25

十五周年漂流記 Vol.2 (Live)
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date published: 1989-04-10

十五周年漂流記 Vol.1 (Live)
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date published: 1989-04-10

十五周年漂流記 Vol.2 (Live)
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date published: 1989-04-10

十五周年漂流記 Vol.1 (Live)
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date published: 1989-04-10

夏・長崎から'89
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date published: 1989-11-10

夏・長崎から'89
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date published: 1989-11-10

夢ばかりみていた
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date published: 1990-02-25

夢回帰線II
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date published: 1990-08-25

家族の肖像
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date published: 1991-07-25

さだまさし白書 Vol.2 (Live)
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date published: 1992-04-25

さだまさし白書 Vol.1 (Live)
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date published: 1992-04-25

さだまさし白書 Vol.1 (Live)
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date published: 1992-04-25

さだまさし白書 Vol.2 (Live)
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date published: 1992-04-25

さだまさし白書 Vol.3 (Live)
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date published: 1992-04-25

ほのぼの
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date published: 1992-11-10

LIVE 二千一夜 Vol.3
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date published: 1993-09-25

LIVE 二千一夜 Vol.2
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date published: 1993-09-25

LIVE 二千一夜 Vol.1
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date published: 1993-09-25

LIVE 二千一夜 Vol.3
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date published: 1993-09-25

LIVE 二千一夜 Vol.2
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逢ひみての
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date published: 1993-10-25

のちのおもひに 第3夜 Vol.1
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date published: 1994-04-25

のちのおもひに 第1夜 Vol.1
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date published: 1994-04-25

のちのおもひに 第4夜 Vol.2
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のちのおもひに 第3夜 Vol.1
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のちのおもひに 第3夜 Vol.3
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date published: 1994-04-25

のちのおもひに 第2夜 Vol.2
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date published: 1994-04-25

のちのおもひに 第3夜 Vol.3
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date published: 1994-04-25

のちのおもひに 第1夜 Vol.2
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date published: 1994-04-25

のちのおもひに 第1夜 Vol.1
type: MusicAlbum
date published: 1994-04-25

のちのおもひに 第2夜 Vol.1
type: MusicAlbum
date published: 1994-04-25

のちのおもひに 第1夜 Vol.3
type: MusicAlbum
date published: 1994-04-25

のちのおもひに 第4夜 Vol.3
type: MusicAlbum
date published: 1994-04-25

のちのおもひに 第4夜 Vol.1
type: MusicAlbum
date published: 1994-04-25

のちのおもひに 第4夜 Vol.2
type: MusicAlbum
date published: 1994-04-25

のちのおもひに 第2夜 Vol.3
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date published: 1994-04-25

のちのおもひに 第3夜 Vol.2
type: MusicAlbum
date published: 1994-04-25

のちのおもひに 第2夜 Vol.2
type: MusicAlbum
date published: 1994-04-25

おもひで泥棒
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date published: 1994-10-25

さだまさしベスト
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date published: 1994-12-21

さよならにっぽん
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date published: 1995-10-25

さよならにっぽん
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date published: 1995-10-25

さよならにっぽん
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date published: 1995-10-25

さよならにっぽん
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date published: 1995-10-25

交響詩 Vol.1 (Live)
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date published: 1995-12-21

交響詩 Vol.2 (Live)
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date published: 1995-12-21

交響詩 Vol.1 (Live)
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date published: 1995-12-21

交響詩 Vol.2 (Live)
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date published: 1995-12-21

古くさい恋の唄ばかり
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date published: 1996-10-25

夢唄
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心の時代
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date published: 1998-09-23

季節の栖 Twenty Five Reasons
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date published: 1999-06-23

響の森 Vol.3 (Live)
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date published: 1999-09-22

響の森 Vol.2 (Live)
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date published: 1999-09-22

響の森 Vol.3 (Live)
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date published: 1999-09-22

響の森 Vol.1 (Live)
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date published: 1999-09-22

響の森 Vol.1 (Live)
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date published: 1999-09-22

続・帰郷
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さだまさしが歌う唱歌・童謡集 ～アルバム「にっぽん」より～
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date published: 2000

日本架空説
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木を植えた男 -緑百年物語-
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date published: 2001

瑠璃光-薬師寺ライヴ2001- vol.3
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瑠璃光-薬師寺ライヴ2001- vol.1
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瑠璃光-薬師寺ライヴ2001- vol.2
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date published: 2001-09-27

夢百合草
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燦然會 Vol.1
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date published: 2002-05-22

燦然會 Vol.3
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date published: 2002-05-22

燦然會 Vol.2
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date published: 2002-05-22

燦然會 Vol.2
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date published: 2002-05-22

燦然會 Vol.1
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夢のつづき
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夢唄
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日本架空説
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心の時代
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夢のつづき
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夢百合草
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さだまさしベスト
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日本架空説
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夢百合草
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さだまさしベスト
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季節の栖 Twenty Five Reasons
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夢唄
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夢のつづき
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季節の栖 Twenty Five Reasons
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季節の栖 Twenty Five Reasons
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心の時代
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夢百合草
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心の時代
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夢のつづき
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日本架空説
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夢唄
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さだまさしベスト
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夢回帰線
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夢回帰線II
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風のおもかげ
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夢供養
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風のおもかげ
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風待通りの人々
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古くさい恋の唄ばかり
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逢ひみての
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自分症候群
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Glass Age
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夢供養
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track: 木根川橋
track: ひき潮

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OpenTimestamps Proof of Existence
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空蝉
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additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T18:46:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5dc93ceb07a129b22083d012894d968431b5d494b519adfc9e9f1d96a41545d6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958924
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958924
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB707902430
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T21:48:51Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc93ceb07a129b22083d012894d968431b5d494b519adfc9e9f1d96a41545d6. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:48:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB707902430.
  date published: 2026-07-20T21:48:51Z
audio: 木根川橋
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 82.483
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.379
  additional property: Energy
    type: PropertyValue
    value: 0.47
  additional property: Speechiness
    type: PropertyValue
    value: 0.063
  additional property: Acousticness
    type: PropertyValue
    value: 0.432
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.34
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.655
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.154
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

ひき潮
type: MusicRecording
duration: PT6M54S
duration ms: 414533
explicit: false
by artist: Masashi Sada
in album: 夢供養
  type: MusicAlbum
  date published: 2004
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPB707902440
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-21T06:24:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x35044354632e52f87a5ab9e02171bb91bf7f641c2954364893181ad96f49e97d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958980
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958980
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB707902440
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T07:04:12Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35044354632e52f87a5ab9e02171bb91bf7f641c2954364893181ad96f49e97d. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB707902440.
  date published: 2026-07-21T07:04:12Z
audio: ひき潮
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.76
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.339
  additional property: Energy
    type: PropertyValue
    value: 0.269
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.75
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.079
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.071
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.921
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

夢の轍
type: MusicAlbum
date published: 2004

Glass Age
type: MusicAlbum
date published: 2004

ADVANTAGE
type: MusicAlbum
date published: 2004

北の国から(完全盤)
type: MusicAlbum
date published: 2004
track: 北の国から-遙かなる大地より～螢のテーマ
  type: MusicRecording
  duration: PT4M30S
  duration ms: 270506
  explicit: false
  by artist: Masashi Sada
  in album: 北の国から(完全盤)
    type: MusicAlbum
    date published: 2004
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPB709200700
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-14T20:04:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5906c139a262245a972a0e9ba7c439da0c97d6f4c1669e5225bf3f0840c427d7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958060
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958060
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709200700
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-14T20:39:42Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5906c139a262245a972a0e9ba7c439da0c97d6f4c1669e5225bf3f0840c427d7. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709200700.
    date published: 2026-07-14T20:39:42Z
  audio: 北の国から-遙かなる大地より～螢のテーマ
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 75.513
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.391
    additional property: Energy
      type: PropertyValue
      value: 0.066
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.952
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.196
    additional property: Liveness
      type: PropertyValue
      value: 0.071
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.37
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.487
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 五郎のテーマ<パンフルート・ヴァーション>
  type: MusicRecording
  duration: PT3M38S
  duration ms: 218160
  explicit: false
  by artist: Masashi Sada
  in album: 北の国から(完全盤)
    type: MusicAlbum
    date published: 2004
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPB709801260
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T21:06:50+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x53f0caa9ddd79dd31ddc20253d2c4e65add09168566de663d1a10144948fe688
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958203
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958203
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801260
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T00:13:37Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f0caa9ddd79dd31ddc20253d2c4e65add09168566de663d1a10144948fe688. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:13:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801260.
    date published: 2026-07-16T00:13:37Z
  audio: 五郎のテーマ<パンフルート・ヴァーション>
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 175.275
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.335
    additional property: Energy
      type: PropertyValue
      value: 0.187
    additional property: Speechiness
      type: PropertyValue
      value: 0.073
    additional property: Acousticness
      type: PropertyValue
      value: 0.781
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.606
    additional property: Liveness
      type: PropertyValue
      value: 0.106
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.432
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.533
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 結のテーマ<ハミング・ヴァージョン>
  type: MusicRecording
  duration: PT2M55S
  duration ms: 175333
  explicit: false
  by artist: Masashi Sada
  in album: 北の国から(完全盤)
    type: MusicAlbum
    date published: 2004
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPTE00202800
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T20:32:46+00:00
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: 結のテーマ<ハミング・ヴァージョン>
track: れいのテーマ
track: 遙かなる大地より<チェロ・ヴァージョン>
track: 都会のテーマ
track: 結のテーマ<ボレロ・ヴァージョン>
track: 遙かなる大地より<インストゥルメンタル>
track: シュウのテーマ
track: 純のテーマ<チェロ・ヴァージョン>
track: 五郎のテーマ<ギター・ヴァージョン>
track: 遙かなる大地より<ハーモニカ・ヴァージョン>
track: 結のテーマ<ヴァイオリン・ヴァージョン>
track: 螢のテーマ<スロー>
track: ダイヤモンド・ダスト
track: 北の国から'93～遙かなる大地より～

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xf88c303f02950a9f179cc5f5e88a99c9f5695c4018ae80151613a4fef4f32249

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956725

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956725

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTE00202800

OTSTimestamp
type: PropertyValue
value: 2026-07-05T01:12:41Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88c303f02950a9f179cc5f5e88a99c9f5695c4018ae80151613a4fef4f32249. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTE00202800.
date published: 2026-07-05T01:12:41Z

結のテーマ<ハミング・ヴァージョン>
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 139.118
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.236
additional property: Energy
  type: PropertyValue
  value: 0.085
additional property: Speechiness
  type: PropertyValue
  value: 0.036
additional property: Acousticness
  type: PropertyValue
  value: 0.981
additional property: Instrumentalness
  type: PropertyValue
  value: 0.503
additional property: Liveness
  type: PropertyValue
  value: 0.117
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.13
additional property: Loudness (dB)
  type: PropertyValue
  value: -19.109
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

れいのテーマ
type: MusicRecording
duration: PT2M37S
duration ms: 157373
explicit: false
by artist: Masashi Sada
in album: 北の国から(完全盤)
  type: MusicAlbum
  date published: 2004
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPB709801270
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T08:33:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x48e425cb0764e57a07ae7d08b9c11c3cca77fa016238186ac4c6fc90f8c9b4f1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956639
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956639
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801270
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-04T11:19:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e425cb0764e57a07ae7d08b9c11c3cca77fa016238186ac4c6fc90f8c9b4f1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801270.
  date published: 2026-07-04T11:19:20Z
audio: れいのテーマ
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.807
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.263
  additional property: Energy
    type: PropertyValue
    value: 0.2
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.503
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.576
  additional property: Liveness
    type: PropertyValue
    value: 0.114
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.189
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.008
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

遙かなる大地より<チェロ・ヴァージョン>
type: MusicRecording
duration: PT1M2S
duration ms: 62800
explicit: false
by artist: Masashi Sada
in album: 北の国から(完全盤)
  type: MusicAlbum
  date published: 2004
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPB709801290
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T00:33:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x22a4c1102f7c8e11b899cd7f30ed82f84df08cf1d4dfd7cbf516499aaefaa4d1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956440
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956440
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801290
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-03T04:03:57Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a4c1102f7c8e11b899cd7f30ed82f84df08cf1d4dfd7cbf516499aaefaa4d1. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801290.
  date published: 2026-07-03T04:03:57Z
audio: 遙かなる大地より<チェロ・ヴァージョン>
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 159.615
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.288
  additional property: Energy
    type: PropertyValue
    value: 0.06
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.9
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.838
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.541
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.887
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

都会のテーマ
type: MusicRecording
duration: PT2M34S
duration ms: 154826
explicit: false
by artist: Masashi Sada
in album: 北の国から(完全盤)
  type: MusicAlbum
  date published: 2004
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPB709801300
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T04:42:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc4a19a660dca64a70d9f91b7cdc29a857b4bfa0e714817a37727bbe1431eee98
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956772
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956772
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801300
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T10:01:46Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a19a660dca64a70d9f91b7cdc29a857b4bfa0e714817a37727bbe1431eee98. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801300.
  date published: 2026-07-05T10:01:46Z
audio: 都会のテーマ
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.014
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.442
  additional property: Energy
    type: PropertyValue
    value: 0.374
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.421
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.93
  additional property: Liveness
    type: PropertyValue
    value: 0.174
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.671
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.976
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

結のテーマ<ボレロ・ヴァージョン>
type: MusicRecording
duration: PT2M54S
duration ms: 174666
explicit: false
by artist: Masashi Sada
in album: 北の国から(完全盤)
  type: MusicAlbum
  date published: 2004
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPTE00202850
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T21:57:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0125964e0e32c544c8201b30792e93ea4143afecbf85e25e37b664ef25866ba0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956856
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956856
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTE00202850
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T01:25:57Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0125964e0e32c544c8201b30792e93ea4143afecbf85e25e37b664ef25866ba0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTE00202850.
  date published: 2026-07-06T01:25:57Z
audio: 結のテーマ<ボレロ・ヴァージョン>
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 70.006
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.338
  additional property: Energy
    type: PropertyValue
    value: 0.271
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.943
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.942
  additional property: Liveness
    type: PropertyValue
    value: 0.075
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.284
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.073
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

遙かなる大地より<インストゥルメンタル>
type: MusicRecording
duration: PT3M9S
duration ms: 189266
explicit: false
by artist: Masashi Sada
in album: 北の国から(完全盤)
  type: MusicAlbum
  date published: 2004
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPB709801320
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-16T22:24:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbee59e3d2b80621b608db734d5768ad327ab50b62438b9c34bea1771b2a96d82
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958335
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958335
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801320
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-16T22:37:47Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee59e3d2b80621b608db734d5768ad327ab50b62438b9c34bea1771b2a96d82. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801320.
  date published: 2026-07-16T22:37:47Z
audio: 遙かなる大地より<インストゥルメンタル>
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 80.109
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.511
  additional property: Energy
    type: PropertyValue
    value: 0.069
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.819
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.162
  additional property: Liveness
    type: PropertyValue
    value: 0.098
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.343
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.438
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

シュウのテーマ
type: MusicRecording
duration: PT2M9S
duration ms: 129692
explicit: false
by artist: Masashi Sada
in album: 北の国から(完全盤)
  type: MusicAlbum
  date published: 2004
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPB709801330
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-15T11:24:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe2dc768529f522d2b8e642ed1b5fa199995a2c6b4207a4ad546a884252a27a36
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958153
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958153
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801330
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-15T14:25:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2dc768529f522d2b8e642ed1b5fa199995a2c6b4207a4ad546a884252a27a36. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:25:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801330.
  date published: 2026-07-15T14:25:19Z
audio: シュウのテーマ
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 79.947
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.512
  additional property: Energy
    type: PropertyValue
    value: 0.135
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.909
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.866
  additional property: Liveness
    type: PropertyValue
    value: 0.107
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.277
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.628
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

純のテーマ<チェロ・ヴァージョン>
type: MusicRecording
duration: PT2M20S
duration ms: 140333
explicit: false
by artist: Masashi Sada
in album: 北の国から(完全盤)
  type: MusicAlbum
  date published: 2004
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPB709801340
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-15T16:06:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x89a40832be10f47ef21a6a64a38488350ad6ed0e28a14dac2f073318197a7260
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958176
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958176
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801340
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-15T19:10:58Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a40832be10f47ef21a6a64a38488350ad6ed0e28a14dac2f073318197a7260. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:10:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801340.
  date published: 2026-07-15T19:10:58Z
audio: 純のテーマ<チェロ・ヴァージョン>
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 167.86
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.369
  additional property: Energy
    type: PropertyValue
    value: 0.083
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.959
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.925
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.383
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.446
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

五郎のテーマ<ギター・ヴァージョン>
type: MusicRecording
duration: PT3M37S
duration ms: 217600
explicit: false
by artist: Masashi Sada
in album: 北の国から(完全盤)
  type: MusicAlbum
  date published: 2004
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPB709801350
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T21:41:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2678a95a2d0b9ad6c2ec521a5acb59de5a6a969fd16a3f8da58d04719700d967
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958935
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958935
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801350
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T22:08:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2678a95a2d0b9ad6c2ec521a5acb59de5a6a969fd16a3f8da58d04719700d967. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801350.
  date published: 2026-07-20T22:08:19Z
audio: 五郎のテーマ<ギター・ヴァージョン>
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 88.016
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.572
  additional property: Energy
    type: PropertyValue
    value: 0.093
  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.934
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.941
  additional property: Liveness
    type: PropertyValue
    value: 0.115
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.578
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.81
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

遙かなる大地より<ハーモニカ・ヴァージョン>
type: MusicRecording
duration: PT1M2S
duration ms: 62306
explicit: false
by artist: Masashi Sada
in album: 北の国から(完全盤)
  type: MusicAlbum
  date published: 2004
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPB709801360
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T05:58:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x80352e7710f77de7d1334598470171df5f1237da0575ddddf66108446fdc8eaf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958681
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958681
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801360
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T06:14:54Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80352e7710f77de7d1334598470171df5f1237da0575ddddf66108446fdc8eaf. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801360.
  date published: 2026-07-19T06:14:54Z
audio: 遙かなる大地より<ハーモニカ・ヴァージョン>
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 80.01
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.45
  additional property: Energy
    type: PropertyValue
    value: 0.119
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.655
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.392
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.247
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.088
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

結のテーマ<ヴァイオリン・ヴァージョン>
type: MusicRecording
duration: PT2M55S
duration ms: 175160
explicit: false
by artist: Masashi Sada
in album: 北の国から(完全盤)
  type: MusicAlbum
  date published: 2004
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPTE00202860
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T22:19:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd1adaf9776f44d6e72fd62b4f2df4806c41545887a46c066e65c887798b26a71
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958792
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958792
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTE00202860
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T22:55:52Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1adaf9776f44d6e72fd62b4f2df4806c41545887a46c066e65c887798b26a71. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTE00202860.
  date published: 2026-07-19T22:55:52Z
audio: 結のテーマ<ヴァイオリン・ヴァージョン>
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.289
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.214
  additional property: Energy
    type: PropertyValue
    value: 0.161
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.028
  additional property: Liveness
    type: PropertyValue
    value: 0.076
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.185
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.294
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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螢のテーマ<スロー>
type: MusicRecording
duration: PT1M44S
duration ms: 104466
explicit: false
by artist: Masashi Sada
in album: 北の国から(完全盤)
  type: MusicAlbum
  date published: 2004
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPB709801370
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-15T11:42:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5d2d7f7f7eec169731187bb425c5fa1b8f556c0f697cccf94ad253e43cfe6601
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958153
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958153
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801370
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-15T14:44:53Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2d7f7f7eec169731187bb425c5fa1b8f556c0f697cccf94ad253e43cfe6601. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:44:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801370.
  date published: 2026-07-15T14:44:53Z
audio: 螢のテーマ<スロー>
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.95
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.833
  additional property: Energy
    type: PropertyValue
    value: 0.168
  additional property: Speechiness
    type: PropertyValue
    value: 0.094
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.942
  additional property: Liveness
    type: PropertyValue
    value: 0.108
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.207
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.073
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

ダイヤモンド・ダスト
type: MusicRecording
duration: PT3M21S
duration ms: 201773
explicit: false
by artist: Masashi Sada
in album: 北の国から(完全盤)
  type: MusicAlbum
  date published: 2004
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPB709801380
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T16:16:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3d347818ddde62ddbd6a43a28dbfee8aeb472ef475e0d314bae6f7a9b23126a0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958761
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958761
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801380
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T17:49:48Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d347818ddde62ddbd6a43a28dbfee8aeb472ef475e0d314bae6f7a9b23126a0. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709801380.
  date published: 2026-07-19T17:49:48Z
audio: ダイヤモンド・ダスト
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 76.062
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.614
  additional property: Energy
    type: PropertyValue
    value: 0.046
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.835
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.021
  additional property: Liveness
    type: PropertyValue
    value: 0.146
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.18
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.909
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

北の国から'93～遙かなる大地より～
type: MusicRecording
duration: PT3M52S
duration ms: 232800
explicit: false
by artist: Masashi Sada
in album: 北の国から(完全盤)
  type: MusicAlbum
  date published: 2004
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPB709304160
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-16T05:28:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x46e291f80ebeca3c3856227c1e81b0c8d98be8768c8ddc9851b3e7c4f0a4486b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958690
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958690
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709304160
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T07:14:39Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e291f80ebeca3c3856227c1e81b0c8d98be8768c8ddc9851b3e7c4f0a4486b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB709304160.
  date published: 2026-07-19T07:14:39Z
audio: 北の国から'93～遙かなる大地より～
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 80.219
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.261
  additional property: Energy
    type: PropertyValue
    value: 0.156
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.878
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.487
  additional property: Liveness
    type: PropertyValue
    value: 0.105
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.179
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.607
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
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Glass Age
type: MusicAlbum
date published: 2004

印象派
type: MusicAlbum
date published: 2004

ほのぼの
type: MusicAlbum
date published: 2004

風待通りの人々
type: MusicAlbum
date published: 2004

夢ばかりみていた
type: MusicAlbum
date published: 2004

夢ばかりみていた
type: MusicAlbum
date published: 2004

うつろひ
type: MusicAlbum
date published: 2004

家族の肖像
type: MusicAlbum
date published: 2004

夢の吹く頃
type: MusicAlbum
date published: 2004

家族の肖像
type: MusicAlbum
date published: 2004

さだまさしベスト2
type: MusicAlbum
date published: 2004

北の国から(完全盤)
type: MusicAlbum
date published: 2004

北の国から(完全盤)
type: MusicAlbum
date published: 2004

古くさい恋の唄ばかり
type: MusicAlbum
date published: 2004

自分症候群
type: MusicAlbum
date published: 2004

北の国から(完全盤)
type: MusicAlbum
date published: 2004

夢の吹く頃
type: MusicAlbum
date published: 2004

印象派
type: MusicAlbum
date published: 2004
track: 検察側の証人
  type: MusicRecording
  duration: PT6M23S
  duration ms: 383306
  explicit: false
  by artist: Masashi Sada
  in album: 印象派
    type: MusicAlbum
    date published: 2004
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPPO00412710
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T05:38:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4ddb1bfe3dfa5bb425b0b64bdf4a168ffffa6a73ce5470da89c365f499f21016
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958977
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958977
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO00412710
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T08:40:18Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddb1bfe3dfa5bb425b0b64bdf4a168ffffa6a73ce5470da89c365f499f21016. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:40:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO00412710.
    date published: 2026-07-21T08:40:18Z
  audio: 検察側の証人
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 134.611
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.686
    additional property: Energy
      type: PropertyValue
      value: 0.321
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.787
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.28
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.49
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.883
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor

おもひで泥棒
type: MusicAlbum
date published: 2004

夢回帰線
type: MusicAlbum
date published: 2004

おもひで泥棒
type: MusicAlbum
date published: 2004

夢供養
type: MusicAlbum
date published: 2004

ADVANTAGE
type: MusicAlbum
date published: 2004

ほのぼの
type: MusicAlbum
date published: 2004

夢の吹く頃
type: MusicAlbum
date published: 2004

うつろひ
type: MusicAlbum
date published: 2004

さだまさしベスト2
type: MusicAlbum
date published: 2004
track: 主人公
  type: MusicRecording
  duration: PT5M26S
  duration ms: 326040
  explicit: false
  by artist: Masashi Sada
  in album: さだまさしベスト2
    type: MusicAlbum
    date published: 2004
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPPO00405440
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T10:39:26+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x663f8eade1f27b72bebe91e35c4027251c09e42071210c66483756bec4e8dd94
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958544
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958544
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO00405440
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T12:14:37Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663f8eade1f27b72bebe91e35c4027251c09e42071210c66483756bec4e8dd94. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO00405440.
    date published: 2026-07-18T12:14:37Z
  audio: 主人公
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 136.161
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.39
    additional property: Energy
      type: PropertyValue
      value: 0.397
    additional property: Speechiness
      type: PropertyValue
      value: 0.035
    additional property: Acousticness
      type: PropertyValue
      value: 0.715
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.126
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.255
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.449
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 修二会
  type: MusicRecording
  duration: PT4M26S
  duration ms: 266173
  explicit: false
  by artist: Masashi Sada
  in album: さだまさしベスト2
    type: MusicAlbum
    date published: 2004
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPPO00405460
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-11T21:38:43+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x97d307d2927052e9f9ee6fc6d64771ad40558473779e46f37a968874f23b41b9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957620
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957620
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO00405460
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-11T22:32:56Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d307d2927052e9f9ee6fc6d64771ad40558473779e46f37a968874f23b41b9. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO00405460.
    date published: 2026-07-11T22:32:56Z
  audio: 修二会
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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track: 天までとどけ
  type: MusicRecording
  duration: PT3M50S
  duration ms: 230733
  explicit: false
  by artist: Masashi Sada
  in album: さだまさしベスト2
    type: MusicAlbum
    date published: 2004
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPPO00405490
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: 天までとどけ
track: フレディもしくは三教街～ロシア租界にて～
track: Birthday

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value: https://explorer.copyrightchains.com/tx/0xfc5bacb68e9d9dea85a1e991179b3ac40797f1a20d2b73afed7b72cf35f0959a

OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956639

OTSVerificationAPI
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO00405490

OTSTimestamp
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OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5bacb68e9d9dea85a1e991179b3ac40797f1a20d2b73afed7b72cf35f0959a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO00405490.
date published: 2026-07-04T11:19:20Z

天までとどけ
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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フレディもしくは三教街～ロシア租界にて～
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duration: PT7M6S
duration ms: 426786
explicit: false
by artist: Masashi Sada
in album: さだまさしベスト2
  type: MusicAlbum
  date published: 2004
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPPO00405500
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO00405500
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T16:58:47Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8989b8e04025337ace811b6dcf5033982f79d1fdc1e9db0b3ff2c89218ef412. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO00405500.
  date published: 2026-07-20T16:58:47Z
audio: フレディもしくは三教街～ロシア租界にて～
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Acousticness
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Birthday
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duration: PT5M33S
duration ms: 333453
explicit: false
by artist: Masashi Sada
in album: さだまさしベスト2
  type: MusicAlbum
  date published: 2004
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPPO00405530
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958152
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO00405530
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-15T14:03:23Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd530eece75dcf9e98217f20835a4a802776d861460bc44b72856132552ba85. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:03:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO00405530.
  date published: 2026-07-15T14:03:23Z
audio: Birthday
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Liveness
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逢ひみての
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date published: 2004

印象派
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date published: 2004

夢の轍
type: MusicAlbum
date published: 2004

自分症候群
type: MusicAlbum
date published: 2004

夢回帰線II
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date published: 2004

家族の肖像
type: MusicAlbum
date published: 2004

ADVANTAGE
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date published: 2004

逢ひみての
type: MusicAlbum
date published: 2004

さだまさしベスト2
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date published: 2004

夢の轍
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date published: 2004

夢回帰線
type: MusicAlbum
date published: 2004

風のおもかげ
type: MusicAlbum
date published: 2004

夢ばかりみていた
type: MusicAlbum
date published: 2004
track: 冬の蝉
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  duration: PT4M16S
  duration ms: 256600
  explicit: false
  by artist: Masashi Sada
  in album: 夢ばかりみていた
    type: MusicAlbum
    date published: 2004
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPPO00414050
  additional property: CopyrightID
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-03T10:47:44Z
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夢回帰線II
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date published: 2004

古くさい恋の唄ばかり
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date published: 2004

おもひで泥棒
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date published: 2004

うつろひ
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ほのぼの
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風待通りの人々
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さだまさしベスト2
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date published: 2004-03-24

帰郷
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date published: 2005
track: 僕にまかせてください
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-11T21:00:50Z
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さだまさしが歌う唱歌・童謡集 ～アルバム「にっぽん」より～
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帰郷
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date published: 2005

さだまさしが歌う唱歌・童謡集 ～アルバム「にっぽん」より～
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date published: 2005

帰郷
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続・帰郷
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続・帰郷
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date published: 2005

さだまさしが歌う唱歌・童謡集 ～アルバム「にっぽん」より～
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date published: 2005

さだまさしトークベスト Vol.3
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date published: 2006

Only SINGLES ～さだまさしシングルコレクション～ Vol.1
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date published: 2006

Only SINGLES ～さだまさしシングルコレクション～ Vol.2
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date published: 2006

さだまさしトークベスト Vol.4
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date published: 2006

さだまさしトークベスト Vol.4
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date published: 2006

Only SINGLES ～さだまさしシングルコレクション～ Vol.2
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date published: 2006

さだまさしトークベスト Vol.2
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date published: 2006

Only SINGLES ～さだまさしシングルコレクション～ Vol.3
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date published: 2006

Only SINGLES ～さだまさしシングルコレクション～ Vol.4
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date published: 2006

Only SINGLES ～さだまさしシングルコレクション～ Vol.3
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date published: 2006

Only SINGLES ～さだまさしシングルコレクション～ Vol.1
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date published: 2006

Only SINGLES ～さだまさしシングルコレクション～ Vol.3
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date published: 2006
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  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPPO00530270
  additional property: CopyrightID
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  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc422ad6f52b4e7ee4f92daca8c6bc02424710edd19c72375fdf4621c21940081. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO00530270.
    date published: 2026-07-14T20:20:34Z
  audio: 二千一夜
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 122.814
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.4
    additional property: Energy
      type: PropertyValue
      value: 0.592
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.648
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.067
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.64
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.143
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
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さだまさしトークベスト Vol.3
type: MusicAlbum
date published: 2006

Only SINGLES ～さだまさしシングルコレクション～ Vol.3
type: MusicAlbum
date published: 2006

Only SINGLES ～さだまさしシングルコレクション～ Vol.2
type: MusicAlbum
date published: 2006

Only SINGLES ～さだまさしシングルコレクション～ Vol.4
type: MusicAlbum
date published: 2006

がんばらんば (長崎弁バージョン)
type: MusicAlbum
date published: 2006

Only SINGLES ～さだまさしシングルコレクション～ Vol.1
type: MusicAlbum
date published: 2006

さだまさしトークベスト Vol.1
type: MusicAlbum
date published: 2006

Only SINGLES ～さだまさしシングルコレクション～ Vol.4
type: MusicAlbum
date published: 2006

さだまさしトークベスト Vol.4
type: MusicAlbum
date published: 2006

Only SINGLES ～さだまさしシングルコレクション～ Vol.4
type: MusicAlbum
date published: 2006

Only SINGLES ～さだまさしシングルコレクション～ Vol.2
type: MusicAlbum
date published: 2006

さだまさしトークベスト Vol.2
type: MusicAlbum
date published: 2006

Only SINGLES ～さだまさしシングルコレクション～ Vol.1
type: MusicAlbum
date published: 2006

さだまさし/グレープ ベスト 1973-1978
type: MusicAlbum
date published: 2006-07-12
track: 追伸
  type: MusicRecording
  duration: PT4M15S
  duration ms: 255320
  explicit: false
  by artist: Masashi Sada
  in album: さだまさし/グレープ ベスト 1973-1978
    type: MusicAlbum
    date published: 2006-07-12
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPWP00401901
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T08:28:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1665f0e6d6bf88872d07faf53c07c81fa756254f2d9ff50f3c93975f86722979
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958991
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958991
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401901
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T11:30:02Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1665f0e6d6bf88872d07faf53c07c81fa756254f2d9ff50f3c93975f86722979. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:30:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401901.
    date published: 2026-07-21T11:30:02Z
  audio: 追伸
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 78.813
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.448
    additional property: Energy
      type: PropertyValue
      value: 0.456
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.749
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.138
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.378
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.68
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 線香花火
  type: MusicRecording
  duration: PT3M15S
  duration ms: 195146
  explicit: false
  by artist: Masashi Sada
  in album: さだまさし/グレープ ベスト 1973-1978
    type: MusicAlbum
    date published: 2006-07-12
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPWP00401914
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T07:17:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb65201b8f436a897491de7d45ef59081785d1600cd5c2b2eadba6c25e9ebbdb7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958987
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958987
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401914
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T09:04:56Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65201b8f436a897491de7d45ef59081785d1600cd5c2b2eadba6c25e9ebbdb7. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401914.
    date published: 2026-07-21T09:04:56Z
  audio: 線香花火
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 79.161
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.413
    additional property: Energy
      type: PropertyValue
      value: 0.367
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.856
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.119
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.322
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.974
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: 雨やどり
  type: MusicRecording
  duration: PT4M27S
  duration ms: 267093
  explicit: false
  by artist: Masashi Sada
  in album: さだまさし/グレープ ベスト 1973-1978
    type: MusicAlbum
    date published: 2006-07-12
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPWP00401976
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T04:53:44+00:00
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: 雨やどり
track: 主人公

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xbf5faebb75b6a9a48ace8b3e2f5f64e66f9b9b1d9144203885c99240a1908def

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956476

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956476

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401976

OTSTimestamp
type: PropertyValue
value: 2026-07-03T09:04:44Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf5faebb75b6a9a48ace8b3e2f5f64e66f9b9b1d9144203885c99240a1908def. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401976.
date published: 2026-07-03T09:04:44Z

雨やどり
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 75.136
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.462
additional property: Energy
  type: PropertyValue
  value: 0.323
additional property: Speechiness
  type: PropertyValue
  value: 0.037
additional property: Acousticness
  type: PropertyValue
  value: 0.859
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.676
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.37
additional property: Loudness (dB)
  type: PropertyValue
  value: -10.139
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

主人公
type: MusicRecording
duration: PT4M59S
duration ms: 299586
explicit: false
by artist: Masashi Sada
in album: さだまさし/グレープ ベスト 1973-1978
  type: MusicAlbum
  date published: 2006-07-12
genre: enka
genre: folk
genre: j-pop
genre: kayokyoku
isrc code: JPWP00401944
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-16T07:08:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2a65f824415473f7114c30c710f9173ec42213d014763de1f1ffe7610cdada82
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958256
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958256
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401944
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-16T07:22:18Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a65f824415473f7114c30c710f9173ec42213d014763de1f1ffe7610cdada82. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00401944.
  date published: 2026-07-16T07:22:18Z
audio: 主人公
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.603
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.281
  additional property: Energy
    type: PropertyValue
    value: 0.448
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.759
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.177
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.321
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.47
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

さだまさしライブべスト(Vol.4)
type: MusicAlbum
date published: 2007

Mist
type: MusicAlbum
date published: 2007

さだまさしライブべスト(Vol.1)
type: MusicAlbum
date published: 2007

さだまさしライブべスト(Vol.4)
type: MusicAlbum
date published: 2007

さだまさしライブべスト(Vol.2)
type: MusicAlbum
date published: 2007

さだまさしライブべスト(Vol.2)
type: MusicAlbum
date published: 2007

さだまさしライブべスト(Vol.1)
type: MusicAlbum
date published: 2007

さだまさしライブべスト(Vol.3)
type: MusicAlbum
date published: 2007

さだまさしライブべスト(Vol.3)
type: MusicAlbum
date published: 2007

さだまさしライブべスト(Vol.4)
type: MusicAlbum
date published: 2007

さだまさしライブべスト(Vol.3)
type: MusicAlbum
date published: 2007

さだまさしライブべスト(Vol.3)
type: MusicAlbum
date published: 2007
track: 主人公
  type: MusicRecording
  duration: PT5M38S
  duration ms: 338493
  explicit: false
  by artist: Masashi Sada
  in album: さだまさしライブべスト(Vol.3)
    type: MusicAlbum
    date published: 2007
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPPO00705710
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-14T19:06:15+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe678ab4aebbdb9602c38038be5f1416f698da6aa85c62d036915a8f8f6bb048e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958054
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958054
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO00705710
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-14T19:33:24Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe678ab4aebbdb9602c38038be5f1416f698da6aa85c62d036915a8f8f6bb048e. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO00705710.
    date published: 2026-07-14T19:33:24Z
  audio: 主人公
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 131.307
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.254
    additional property: Energy
      type: PropertyValue
      value: 0.258
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.933
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.025
    additional property: Liveness
      type: PropertyValue
      value: 0.97
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.135
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.09
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 防人の詩
  type: MusicRecording
  duration: PT7M22S
  duration ms: 442720
  explicit: false
  by artist: Masashi Sada
  in album: さだまさしライブべスト(Vol.3)
    type: MusicAlbum
    date published: 2007
  genre: enka
  genre: folk
  genre: j-pop
  genre: kayokyoku
  isrc code: JPPO00705820
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-11T21:13:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb3d411a474e1c19b1a03984c5d787ba8be06c9a72dbf2425af76b3864fd7752b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957611
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957611
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO00705820
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-11T21:33:50Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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木を植えた男 -緑百年物語-
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北の国から2010-遙かなる大地より～螢のテーマ-
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4000＆4001 in 日本武道館 - 4001回 Selection
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Sada City
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美しい朝
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とこしへ
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恋文
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惠百福 たくさんのしあわせ
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第二楽章
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風の軌跡
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さだまさし 35周年記念コンサート FESTIVAL HALL 200 -Vol.3-
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さだまさし 35周年記念コンサート FESTIVAL HALL 200 -Vol.1-
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さだまさし ソロ通算3333回記念コンサート in 日本武道館 -Vol.6-
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さだまさし ソロ通算3333回記念コンサート in 日本武道館 -Vol.1-
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大変なンすからもォ。
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父を送る まさしんぐWORLD CONCERT 2010 -Vol.1-
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さだまさし ソロ通算3333回記念コンサート in 日本武道館 -Vol.4-
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父を送る まさしんぐWORLD CONCERT 2010 -Vol.2-
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さだまさし 35周年記念コンサート FESTIVAL HALL 200 -Vol.2-
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Reborn ～生まれたてのさだまさし～
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新自分風土記I～望郷篇～
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45周年記念コンサートツアー2018 Reborn ～生まれたてのさだまさし～(Live at 東京国際フォーラム ホールA)
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人生の贈り物 ～他に望むものはない～
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十津川村へ行こう！（ステージトーク）
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一期一会
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夢見る人
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私は犬になりたい￥490－シングル・ヴァージョン－
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茨にもきっと花咲く
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いつも君の味方
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存在理由～Raison d'etre～
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奇跡 2021
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Kiseki 2021
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さだ丼～新自分風土記III～
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SadaDon ShinJibunFudoki3
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Masashi Sada Concert Tour2020 Sonzairiyuu~Raison d'etre~ [Live at Tokyo International Forum Hall A, 2020/12/02]
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さだまさしコンサートツアー2020存在理由～Raison d'etre～ [Live at 東京国際フォーラム ホールA, 2020/12/02]
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-12T23:17:00Z
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Aoharu 49.69
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date published: 2021-10-27

証城寺の狸囃子 '22 ～COME COME EVERYBODY～
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  genre: folk
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  genre: kayokyoku
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-20T09:20:55Z
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Shoujouji no Tanukibayashi '22 -COME COME EVERYBODY-
type: MusicAlbum
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Koi
type: MusicAlbum
date published: 2022-06-01

孤悲
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さだ丼～新自分風土記III～さだまさしコンサートツアー2021 ほぼソロコンサート4500回ぐらい記念公演 アオハル入り
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date published: 2022-07-06

SadaDon ShinJibunFudoki3 Masashi Sada Concert Tour 2021 Hobo Solo Concert 4500 kai gurai Kinenkouen Aoharu Iri
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date published: 2022-07-06

Natsukashii Mirai
type: MusicAlbum
date published: 2023-06-14

なつかしい未来
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date published: 2023-06-14
track: 序曲「未来へ」～さだまさしに捧ぐ～
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-20T12:00:39Z
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track: ドレスコード
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  genre: enka
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-18T19:27:02Z
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  audio: なつかしい未来

CopyrightChainExplorerURL
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OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
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value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be087ab8878a3692b478dbeeff75443c3355d79f7e781b468a969a847e1a477. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02301932.
date published: 2026-07-17T13:35:31Z

なつかしい未来
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さだまさしコンサートツアー2022～孤悲～
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date published: 2023-07-12

Masashi Sada Concert Tour 2022 -Koi-
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date published: 2023-07-12

さだまさし 50th Anniversary コンサートツアー2023～なつかしい未来～ 一夜 グレープナイト (Live)
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date published: 2024-04-10

Masashi Sada 50th Anniversary Concert Tour 2023 ~Natsukashii Mirai~ Sanya Kan mo Night (Live)
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date published: 2024-04-10

さだまさし 50th Anniversary コンサートツアー2023～なつかしい未来～ 三夜 管もナイト (Live)
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date published: 2024-04-10

さだまさし 50th Anniversary コンサートツアー2023～なつかしい未来～ 二夜 工務店ナイト (Live)
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date published: 2024-04-10

Masashi Sada 50th Anniversary Concert Tour 2023 ~Natsukashii Mirai~ Niya Komuten Night (Live)
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date published: 2024-04-10

さだまさし 50th Anniversary コンサートツアー2023～なつかしい未来～ 四夜 弦もナイト (Live)
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Masashi Sada 50th Anniversary Concert Tour 2023 ~Natsukashii Mirai~ Yonya Gen mo Night (Live)
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date published: 2024-04-10

Masashi Sada 50th Anniversary Concert Tour 2023 ~Natsukashii Mirai~ Ichiya Grape Night (Live)
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date published: 2024-04-10

Believe
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date published: 2024-05-15

Believe
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歌ってはいけないCD ～さだばなし 迷作集 令和六年版～（Live）
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date published: 2024-05-22

Utattewaikenai CD ~Sadabanashi Meisakushu Reiwa Rokunenban~ (Live)
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date published: 2024-05-22

生命の樹～Tree of Life～
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date published: 2025-05-14

Seimei no Ki - Tree of Life -
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-20T19:44:49Z
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2024 さだまさしコンサートツアー"51"
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2024 Sada Masashi Concert Tour"51"
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