朝比奈 マリア
type: MusicGroup
genre: city pop
popularity: 25
followers: 4272
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9b5180006fccaf4bf0667ec1d3948a90807e4f941f18920ca10b71c84f865745
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/ac9840cb-3c8b-4add-8ecb-e55249a10086.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ac9840cb-3c8b-4add-8ecb-e55249a10086.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ac9840cb-3c8b-4add-8ecb-e55249a10086
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9b5180006fccaf4bf0667ec1d3948a90807e4f941f18920ca10b71c84f865745","name":"朝比奈 マリア","registered_at":"2026-06-12T07:03:37Z","symbol":"NIM0222558","token_address":"0x0289574b210d37c1a3a0c7f6dfd9335388c88336","type":"artist","uuid":"ac9840cb-3c8b-4add-8ecb-e55249a10086"}
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 0x9b5180006fccaf4bf0667ec1d3948a90807e4f941f18920ca10b71c84f865745. 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/ac9840cb-3c8b-4add-8ecb-e55249a10086.json and https://artists.proofprofile.net/proofs/artist/ac9840cb-3c8b-4add-8ecb-e55249a10086.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x9b5180006fccaf4bf0667ec1d3948a90807e4f941f18920ca10b71c84f865745","name":"朝比奈 マリア","registered_at":"2026-06-12T07:03:37Z","symbol":"NIM0222558","token_address":"0x0289574b210d37c1a3a0c7f6dfd9335388c88336","type":"artist","uuid":"ac9840cb-3c8b-4add-8ecb-e55249a10086"}
album: MARIA
  type: MusicAlbum
  date published: 1979
  track: 霧雨のあとで
    type: MusicRecording
    duration: PT3M51S
    duration ms: 231480
    explicit: false
    by artist: 朝比奈 マリア
    in album: MARIA
      type: MusicAlbum
      date published: 1979
    genre: city pop
    isrc code: JPAL07900230
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T18:19:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x31a6174a2956848257a31fa2c743286f13a279409f34edd97ea43c09a7e519a6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPAL07900230
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0x31a6174a2956848257a31fa2c743286f13a279409f34edd97ea43c09a7e519a6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPAL07900230.
      date published: 2026-07-05T19:27:56Z
    audio: 霧雨のあとで
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.789
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.736
      additional property: Energy
        type: PropertyValue
        value: 0.846
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.162
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.066
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.964
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.609
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: 心のままに
    type: MusicRecording
    duration: PT3M49S
    duration ms: 229120
    explicit: false
    by artist: 朝比奈 マリア
    in album: MARIA
      type: MusicAlbum
      date published: 1979
    genre: city pop
    isrc code: JPAL07900270
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T16:42:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5335e7cb7dc9aea091d9a5a1ab71e4daaa31fdf2753dbaebe96224050177749a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956551
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956551
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPAL07900270
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T21:18:05Z
    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 0x5335e7cb7dc9aea091d9a5a1ab71e4daaa31fdf2753dbaebe96224050177749a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPAL07900270.
      date published: 2026-07-03T21:18:05Z
    audio: 心のままに
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.437
      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: 0.569
      additional property: Energy
        type: PropertyValue
        value: 0.817
      additional property: Speechiness
        type: PropertyValue
        value: 0.05
      additional property: Acousticness
        type: PropertyValue
        value: 0.461
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.283
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.856
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Loudness (dB)
type: PropertyValue
value: -6.45

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major

MARIA
type: MusicAlbum
date published: 1979

MARIA
type: MusicAlbum
date published: 1979
track: おんな ともだち
  type: MusicRecording
  duration: PT3M12S
  duration ms: 192520
  explicit: false
  by artist: 朝比奈 マリア
  in album: MARIA
    type: MusicAlbum
    date published: 1979
  genre: city pop
  isrc code: JPAL07900210
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-02T21:11:29+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3763db23968523941df3490326bab401db4073f06e82553d3658e81720296613
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956404
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956404
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPAL07900210
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T03:58:38Z
  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 0x3763db23968523941df3490326bab401db4073f06e82553d3658e81720296613. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:58:38Z), 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/JPAL07900210.
    date published: 2026-07-17T03:58:38Z
  audio: おんな ともだち
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 144.703
    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: 0.755
    additional property: Energy
      type: PropertyValue
      value: 0.844
    additional property: Speechiness
      type: PropertyValue
      value: 0.049
    additional property: Acousticness
      type: PropertyValue
      value: 0.172
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.079
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.863
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.539
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 金色のなぎさ
  type: MusicRecording
  duration: PT3M16S
  duration ms: 196306
  explicit: false
  by artist: 朝比奈 マリア
  in album: MARIA
    type: MusicAlbum
    date published: 1979
  genre: city pop
  isrc code: JPAL07900240
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T02:30:59+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfbae9ec55a4a3fb2c0a01a22ad59fd06cbd34d4552f1fc284e0653d36540dd9a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958357
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958357
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPAL07900240
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T03:33:42Z
  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 0xfbae9ec55a4a3fb2c0a01a22ad59fd06cbd34d4552f1fc284e0653d36540dd9a. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/JPAL07900240.
    date published: 2026-07-17T03:33:42Z
  audio: 金色のなぎさ
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.932
    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: 0.646
    additional property: Energy
      type: PropertyValue
      value: 0.732
    additional property: Speechiness
      type: PropertyValue
      value: 0.135
    additional property: Acousticness
      type: PropertyValue
      value: 0.263
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.227
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.842
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.268
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: ペパーミントの風
  type: MusicRecording
  duration: PT4M14S
  duration ms: 254533
  explicit: false
  by artist: 朝比奈 マリア
  in album: MARIA
    type: MusicAlbum
    date published: 1979
  genre: city pop
  isrc code: JPAL07900250
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T14:31:04+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2b637ae8c3e632f355fe36e7c0cedba2eef44423a03188e7b9b0ee518e2ae1d1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958749
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958749
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: ペパーミントの風
track: 殿方ご免あそばせ
track: ディスコ・ギャル (Single Mix Ver.)

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPAL07900250

OTSTimestamp
type: PropertyValue
value: 2026-07-19T17:34:40Z

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 0x2b637ae8c3e632f355fe36e7c0cedba2eef44423a03188e7b9b0ee518e2ae1d1. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:34:40Z), 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/JPAL07900250.
date published: 2026-07-19T17:34:40Z

ペパーミントの風
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 134.693
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: 0.602
additional property: Energy
  type: PropertyValue
  value: 0.631
additional property: Speechiness
  type: PropertyValue
  value: 0.026
additional property: Acousticness
  type: PropertyValue
  value: 0.096
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.195
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.691
additional property: Loudness (dB)
  type: PropertyValue
  value: -8.8
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

殿方ご免あそばせ
type: MusicRecording
duration: PT2M56S
duration ms: 176680
explicit: false
by artist: 朝比奈 マリア
in album: MARIA
  type: MusicAlbum
  date published: 1979
genre: city pop
isrc code: JPAL07900260
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-02T21:11:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x884c2d22585f215e28acc77ed51013db5181295eb068fa58ac35c6416ecf63e1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956404
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956404
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPAL07900260
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T04:01:17Z
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 0x884c2d22585f215e28acc77ed51013db5181295eb068fa58ac35c6416ecf63e1. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:01:17Z), 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/JPAL07900260.
  date published: 2026-07-17T04:01:17Z
audio: 殿方ご免あそばせ
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.536
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.83
  additional property: Energy
    type: PropertyValue
    value: 0.674
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.578
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.107
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.829
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.611
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

ディスコ・ギャル (Single Mix Ver.)
type: MusicRecording
duration: PT3M30S
duration ms: 210973
explicit: false
by artist: 朝比奈 マリア
in album: MARIA
  type: MusicAlbum
  date published: 1979
genre: city pop
isrc code: JPAL07900170
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-02T21:11:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa024a36167d21011a8172e877cd25019fe51091a6757a6249475ecdc6fa8d98b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956404
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956404
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPAL07900170
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T02:45:50Z
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 0xa024a36167d21011a8172e877cd25019fe51091a6757a6249475ecdc6fa8d98b. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:45:50Z), 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/JPAL07900170.
  date published: 2026-07-17T02:45:50Z
audio: ディスコ・ギャル (Single Mix Ver.)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.261
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.658
  additional property: Energy
    type: PropertyValue
    value: 0.815
  additional property: Speechiness
    type: PropertyValue
    value: 0.063
  additional property: Acousticness
    type: PropertyValue
    value: 0.073
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.406
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.893
  additional property: Loudness (dB)
    type: PropertyValue
    value: -5.074
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor