Asa
type: MusicGroup
genre: vocaloid
description: Asa may refer to: People and fictional characters Asa (given name), a given name, including a list of people and fictional characters so named Asa people, an ethnic group based in Tanzania Aṣa, Ni
popularity: 30
followers: 8120
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd2e741d1976a26b957b2c5317e9928e8a98905b7d7fe653d29d9556115aa5cbd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3b183ef1-8f06-4f2c-81a5-5604e17b2aba.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3b183ef1-8f06-4f2c-81a5-5604e17b2aba.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3b183ef1-8f06-4f2c-81a5-5604e17b2aba
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e741d1976a26b957b2c5317e9928e8a98905b7d7fe653d29d9556115aa5cbd. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3b183ef1-8f06-4f2c-81a5-5604e17b2aba.json and https://artists.proofprofile.net/proofs/artist/3b183ef1-8f06-4f2c-81a5-5604e17b2aba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
album: Yoshiwara Lamento
  type: MusicAlbum
  date published: 2012-10-26
album: 吉原ラメント
  type: MusicAlbum
  date published: 2012-10-26
album: Yoshiwara Lamento -Utaite Ban-
  type: MusicAlbum
  date published: 2013
album: 吉原ラメント~唄い手盤~
  type: MusicAlbum
  date published: 2013-10-16
  track: 吉原ラメント feat.ピコ(カバー)
    type: MusicRecording
    duration: PT3M45S
    duration ms: 225000
    explicit: false
    by artist: Asa
    in album: 吉原ラメント~唄い手盤~
      type: MusicAlbum
      date published: 2013-10-16
    genre: vocaloid
    isrc code: JPC231300915
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T07:52:04+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4008e4fe8a71f7960ec581fbde2cf69c8e44930bbe3350e323d09e46c6f6a89b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958383
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958383
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPC231300915
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T10:53:22Z
    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 0x4008e4fe8a71f7960ec581fbde2cf69c8e44930bbe3350e323d09e46c6f6a89b. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:53:22Z), 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/JPC231300915.
      date published: 2026-07-17T10:53:22Z
    audio: 吉原ラメント feat.ピコ(カバー)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.948
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.524
      additional property: Energy
        type: PropertyValue
        value: 0.865
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.01
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.005
      additional property: Liveness
        type: PropertyValue
        value: 0.262
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.762
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.595
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 吉原ラメント ~UTAU盤~ feat.重音テト
  type: MusicAlbum
  date published: 2014-02-05
album: 明正フィロソフィア【通常盤】
  type: MusicAlbum
  date published: 2016-01-13
album: Meishou Philosophia (Standard Edition)
  type: MusicAlbum
  date published: 2016-01-13
album: 麗人オートマタ
  type: MusicAlbum
  date published: 2017-02-15
album: 1987
  type: MusicAlbum
  date published: 2018-09-19
  track: 吉原ラメント
    type: MusicRecording
    duration: PT3M46S
    duration ms: 226726
    explicit: false
    by artist: Asa
    in album: 1987
      type: MusicAlbum
      date published: 2018-09-19
    genre: vocaloid
    isrc code: JPC231800393
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T09:13:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd05415b492784a89c3455db00fe7e716256f95616f0130b93de8c09e1923489b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958529
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958529
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPC231800393
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T09:21:41Z
    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 0xd05415b492784a89c3455db00fe7e716256f95616f0130b93de8c09e1923489b. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/JPC231800393.
      date published: 2026-07-18T09:21:41Z
    audio: 吉原ラメント
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.985
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      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
album: TVアニメ「臨死!! 江古田ちゃん」エンディングテーマ曲・第8話
album: TV Anime "Rinshi!! Ekoda-chan" Ending Theme Song, Episode 8
album: Reiwa Ideology
album: 令和イデオロギー
album: 魔王
album: Evil King
album: Momoku Thread
album: 盲目スレッド
album: 花街暗中膝栗毛
album: Hanamachi Anchu Hizakurige
album: 変身シンドローム
album: 吉原ラメント 再来盤
album: 幻想老街
album: 詠み人来たりキメラは謡う ～再来盤集～
album: Asa 4
album: 金魚掬いと夢花火
track: 変身シンドローム
track: Tenshi no Uta - Remix

変身シンドローム
type: MusicRecording
duration: PT3M11S
duration ms: 191733
explicit: false
by artist: Asa
by artist: 夢ノ結唱 ROSE
in album: Blütenstand
  type: MusicAlbum
  date published: 2023-07-12
isrc code: JPR562300111
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T19:19:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa601ec4e75971b8c58d6bb1ee6de3bd9914a8b11f22422d56e754341a70b7fc0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPR562300111
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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
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
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa601ec4e75971b8c58d6bb1ee6de3bd9914a8b11f22422d56e754341a70b7fc0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPR562300111.
  date published: 2026-07-08T03:20:19Z
audio: 変身シンドローム
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.691
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.572
  additional property: Energy
    type: PropertyValue
    value: 0.864
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.004
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.326
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.838
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.996
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Tenshi no Uta - Remix
type: MusicRecording
duration: PT4M0S
duration ms: 240000
explicit: false
by artist: Asa
in album: Caligula Overdose Original Soundtrack
  type: MusicAlbum
  date published: 2018-05-23
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281ba9613aa016d4ee3ac806c2cf8aebb3ef55570ab2ee82429c6de16e2c5936. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/JPJ931800110.
  date published: 2026-07-30T14:36:16Z
audio: Tenshi no Uta - Remix
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.948
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.278
  additional property: Energy
    type: PropertyValue
    value: 0.71
  additional property: Speechiness
    type: PropertyValue
    value: 0.088
  additional property: Acousticness
    type: PropertyValue
    value: 0
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.298
  additional property: Liveness
    type: PropertyValue
    value: 0.085
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.481
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.878
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: JPJ931800110
additional property: CopyrightID
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
  value: 960264
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T14:36:16+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPJ931800110
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960264
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960264
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:36:16+00:00
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.534

Energy
type: PropertyValue
value: 0.958

Speechiness
type: PropertyValue
value: 0.127

Acousticness
type: PropertyValue
value: 0.012

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.107

Valence (Positivity)
type: PropertyValue
value: 0.529

Loudness (dB)
type: PropertyValue
value: -5.017

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Major

1987
type: MusicAlbum
date published: 2018-11-19

TVアニメ「臨死!! 江古田ちゃん」エンディングテーマ曲・第8話
type: MusicAlbum
date published: 2019-03-20

TV Anime "Rinshi!! Ekoda-chan" Ending Theme Song, Episode 8
type: MusicAlbum
date published: 2019-06-07

Reiwa Ideology
type: MusicAlbum
date published: 2021-03-03

令和イデオロギー
type: MusicAlbum
date published: 2021-03-03

魔王
type: MusicAlbum
date published: 2022-02-27

Evil King
type: MusicAlbum
date published: 2022-02-27

Momoku Thread
type: MusicAlbum
date published: 2022-05-20

盲目スレッド
type: MusicAlbum
date published: 2022-05-20

花街暗中膝栗毛
type: MusicAlbum
date published: 2022-12-02

Hanamachi Anchu Hizakurige
type: MusicAlbum
date published: 2022-12-02

変身シンドローム
type: MusicAlbum
date published: 2023-03-11

変身シンドローム
type: MusicAlbum
date published: 2023-03-11

吉原ラメント 再来盤
type: MusicAlbum
date published: 2023-08-19
track: 吉原ラメント 再来盤
  type: MusicRecording
  duration: PT3M47S
  duration ms: 227115
  explicit: false
  by artist: Asa
  in album: 吉原ラメント 再来盤
    type: MusicAlbum
    date published: 2023-08-19
  genre: vocaloid
  isrc code: JPL542300523
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T02:25:32+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4f0c12548e2dbfb3d0edffa1405db49d70d9c69fc192c8ac362d02b784ae875d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958228
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958228
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPL542300523
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T05:27:24Z
  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 0x4f0c12548e2dbfb3d0edffa1405db49d70d9c69fc192c8ac362d02b784ae875d. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:27:24Z), 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/JPL542300523.
    date published: 2026-07-16T05:27:24Z
  audio: 吉原ラメント 再来盤
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 95.999
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.531
    additional property: Energy
      type: PropertyValue
      value: 0.921
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.005
    additional property: Liveness
      type: PropertyValue
      value: 0.194
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.713
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.057
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

幻想老街
type: MusicAlbum
date published: 2024-03-01
track: 幻想老街
  type: MusicRecording
  duration: PT3M15S
  duration ms: 195000
  explicit: false
  by artist: Asa
  in album: 幻想老街
    type: MusicAlbum
    date published: 2024-03-01
  genre: vocaloid
  isrc code: JPL542400150
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T06:56:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x90371f9940bed5bc0d3d3678ef5e3b114bcca137dc309276f73c061b88460bcd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956634
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956634
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPL542400150
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T10:04:33Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-04T10:04:33Z
  audio: 幻想老街
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詠み人来たりキメラは謡う ～再来盤集～
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-03T23:28:02Z
  audio: 明正ロマン 再来盤
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track: 池袋黄昏ナイトクラブ 再来盤
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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: 2026-07-04T11:19:20Z
  audio: 池袋黄昏ナイトクラブ 再来盤
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OTSVerificationAPI
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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
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encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1b453f91a6511161cc3470b1d7d2d9592a7a61990cc51f5bba6c0f6a92b816. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/JPC232400016.
date published: 2026-07-13T18:21:16Z

吉原ラメント 再来盤
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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Asa 4
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date published: 2025-08-26

金魚掬いと夢花火
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date published: 2025-10-15