Ayako Ishikawa
type: MusicGroup
popularity: 24
followers: 8392
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x58bfd5c13eca6cacf3f465d993af204006cbf6c5e46b572dc610b05d6bce56a1
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/39ec1ce0-5d18-4b98-a833-71bd7e6caa7b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/39ec1ce0-5d18-4b98-a833-71bd7e6caa7b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/39ec1ce0-5d18-4b98-a833-71bd7e6caa7b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x58bfd5c13eca6cacf3f465d993af204006cbf6c5e46b572dc610b05d6bce56a1","name":"Ayako Ishikawa","registered_at":"2026-06-11T16:59:08Z","symbol":"NIM0075149","token_address":"0x5575ca7b1a6576e954f3a54499fa07e21d6c337b","type":"artist","uuid":"39ec1ce0-5d18-4b98-a833-71bd7e6caa7b"}
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 0x58bfd5c13eca6cacf3f465d993af204006cbf6c5e46b572dc610b05d6bce56a1. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39ec1ce0-5d18-4b98-a833-71bd7e6caa7b.json and https://artists.proofprofile.net/proofs/artist/39ec1ce0-5d18-4b98-a833-71bd7e6caa7b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x58bfd5c13eca6cacf3f465d993af204006cbf6c5e46b572dc610b05d6bce56a1","name":"Ayako Ishikawa","registered_at":"2026-06-11T16:59:08Z","symbol":"NIM0075149","token_address":"0x5575ca7b1a6576e954f3a54499fa07e21d6c337b","type":"artist","uuid":"39ec1ce0-5d18-4b98-a833-71bd7e6caa7b"}
album: AYAKO
  type: MusicAlbum
  date published: 2010-04-12
album: KIBOU (Hope)
  type: MusicAlbum
  date published: 2012-07-15
album: VOCALO CLASSIC
  type: MusicAlbum
  date published: 2014-03-05
  track: 初音ミクの消失
    type: MusicRecording
    duration: PT4M44S
    duration ms: 284590
    explicit: false
    by artist: Ayako Ishikawa
    in album: VOCALO CLASSIC
      type: MusicAlbum
      date published: 2014-03-05
    isrc code: JPZ921401162
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T09:06:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4d87b6f94d4ea9286fb9b7571a4df09f0dcdba7812c9e745e625ccca14bfa0e9
    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/JPZ921401162
    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 0x4d87b6f94d4ea9286fb9b7571a4df09f0dcdba7812c9e745e625ccca14bfa0e9. 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/JPZ921401162.
      date published: 2026-07-18T12:14:37Z
    audio: 初音ミクの消失
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.443
      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: 0.276
      additional property: Energy
        type: PropertyValue
        value: 0.746
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.189
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.467
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.473
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.863
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: VOCALO CLASSIC
  type: MusicAlbum
  date published: 2014-03-05
album: THE Hi-Res CLASSIC CONCERT AYAKO ISHIKAWA
  type: MusicAlbum
  date published: 2014-11-12
album: THE Hi-Res CLASSIC CONCERT AYAKO ISHIKAWA
  type: MusicAlbum
  date published: 2014-11-12
  track: Senbonzakura
    type: MusicRecording
    duration: PT3M34S
    duration ms: 214398
    explicit: false
    by artist: Ayako Ishikawa
    in album: THE Hi-Res CLASSIC CONCERT AYAKO ISHIKAWA
      type: MusicAlbum
      date published: 2014-11-12
    isrc code: TCJPB1475238
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T08:44:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb011c745f3ced5b8ef5acfcb1da4a1619e8997054fe312db571e81b0d7ee74a1
    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/TCJPB1475238
    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 0xb011c745f3ced5b8ef5acfcb1da4a1619e8997054fe312db571e81b0d7ee74a1. 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/TCJPB1475238.
      date published: 2026-07-05T10:01:46Z
    audio: Senbonzakura
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 78.406
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.243
      additional property: Energy
        type: PropertyValue
        value: 0.458
      additional property: Speechiness
        type: PropertyValue
        value: 0.075
      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: CINEMA CLASSIC
album: ANIME CLASSIC
album: はなまるぴっぴはよいこだけ (石川綾子カヴァー音源)
album: SAKURA SYMPHONY
album: ジャンルレス THE BEST
album: GENRELESS THE BEST
album: FIGURE CLASSIC
album: GENRELESS THE BEST CONCERT TOUR
album: ジャンルレス THE BEST コンサートツアー
album: ANIME CLASSIC 2
album: Crying Violin
album: AYAKO TIMES
album: AYAKO TIMES 10th Anniversary Concert (Live)

Acousticness
type: PropertyValue
value: 0.9

Instrumentalness
type: PropertyValue
value: 0.002

Liveness
type: PropertyValue
value: 0.696

Valence (Positivity)
type: PropertyValue
value: 0.345

Loudness (dB)
type: PropertyValue
value: -11.832

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Minor

CINEMA CLASSIC
type: MusicAlbum
date published: 2015-02-10

ANIME CLASSIC
type: MusicAlbum
date published: 2015-12-09
track: only my railgun
  type: MusicRecording
  duration: PT4M11S
  duration ms: 251546
  explicit: false
  by artist: Ayako Ishikawa
  in album: ANIME CLASSIC
    type: MusicAlbum
    date published: 2015-12-09
  isrc code: JPB601504265
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T05:35:50+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9c943bdc781727d99679dac89dc039364b1b0e33498bb1d77f6ea2efe6f0b4af
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958373
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958373
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB601504265
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T08:48:28Z
  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 0x9c943bdc781727d99679dac89dc039364b1b0e33498bb1d77f6ea2efe6f0b4af. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:48:28Z), 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/JPB601504265.
    date published: 2026-07-17T08:48:28Z
  audio: only my railgun
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 142.912
    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: 0.472
    additional property: Energy
      type: PropertyValue
      value: 0.933
    additional property: Speechiness
      type: PropertyValue
      value: 0.174
    additional property: Acousticness
      type: PropertyValue
      value: 0.136
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.354
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.725
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.926
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: ライオン
  type: MusicRecording
  duration: PT4M32S
  duration ms: 272786
  explicit: false
  by artist: Ayako Ishikawa
  in album: ANIME CLASSIC
    type: MusicAlbum
    date published: 2015-12-09
  isrc code: JPB601504268
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T09:45:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x40dfd824b4141bdd1d5a1f13e33e8e3850ec32f7aef7b47ed935f92befc57f1c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958861
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958861
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB601504268
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T10:02:52Z
  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 0x40dfd824b4141bdd1d5a1f13e33e8e3850ec32f7aef7b47ed935f92befc57f1c. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/JPB601504268.
    date published: 2026-07-20T10:02:52Z
  audio: ライオン
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 150.166
    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: 0.341
    additional property: Energy
      type: PropertyValue
      value: 0.832
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.125
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.06
    additional property: Liveness
      type: PropertyValue
      value: 0.146
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.531
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.321
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: カントリーロード
  type: MusicRecording
  duration: PT3M4S
  duration ms: 184320
  explicit: false
  by artist: Ayako Ishikawa
  in album: ANIME CLASSIC
    type: MusicAlbum
    date published: 2015-12-09
  isrc code: JPB601504270
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T12:31:10+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7bf6afdc4f3503bdef51b21cc478ae7775100c3e2cb8802eb1b48041038a1005
  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/JPB601504270
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: カントリーロード
track: 創聖のアクエリオン

OTSTimestamp
type: PropertyValue
value: 2026-07-05T19:27:56Z

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 0x7bf6afdc4f3503bdef51b21cc478ae7775100c3e2cb8802eb1b48041038a1005. 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/JPB601504270.
date published: 2026-07-05T19:27:56Z

カントリーロード
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 189.829
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: 0.168
additional property: Energy
  type: PropertyValue
  value: 0.76
additional property: Speechiness
  type: PropertyValue
  value: 0.082
additional property: Acousticness
  type: PropertyValue
  value: 0.217
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.364
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.339
additional property: Loudness (dB)
  type: PropertyValue
  value: -5.837
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Major

創聖のアクエリオン
type: MusicRecording
duration: PT4M42S
duration ms: 282973
explicit: false
by artist: Ayako Ishikawa
in album: ANIME CLASSIC
  type: MusicAlbum
  date published: 2015-12-09
isrc code: JPB601504271
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-17T17:47:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x40477d77a9fd93f46f60612362ccd3f083a0be27f901671e912cb769f13bea0c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958447
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958447
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB601504271
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T19:47:19Z
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 0x40477d77a9fd93f46f60612362ccd3f083a0be27f901671e912cb769f13bea0c. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/JPB601504271.
  date published: 2026-07-17T19:47:19Z
audio: 創聖のアクエリオン
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 150.775
  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: 0.401
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  additional property: Instrumentalness
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    value: 0.373
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    value: 0.557
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はなまるぴっぴはよいこだけ (石川綾子カヴァー音源)
type: MusicAlbum
date published: 2016-04-20

SAKURA SYMPHONY
type: MusicAlbum
date published: 2016-11-16

ジャンルレス THE BEST
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date published: 2017-09-07

GENRELESS THE BEST
type: MusicAlbum
date published: 2017-09-07

ジャンルレス THE BEST
type: MusicAlbum
date published: 2017-09-13

FIGURE CLASSIC
type: MusicAlbum
date published: 2018-02-01

GENRELESS THE BEST CONCERT TOUR
type: MusicAlbum
date published: 2018-04-11

ジャンルレス THE BEST コンサートツアー
type: MusicAlbum
date published: 2018-04-11

ジャンルレス THE BEST コンサートツアー
type: MusicAlbum
date published: 2018-04-25

ANIME CLASSIC 2
type: MusicAlbum
date published: 2020-04-15
track: 名探偵コナン メイン・テーマ (Cover)
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  duration: PT2M9S
  duration ms: 129570
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  by artist: Ayako Ishikawa
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    date published: 2020-04-15
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    value: 956790
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPK2080160
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    value: 2026-07-05T12:31:54Z
  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 0xb948f30c016642e40b390371e69ddf8572b096bbb5691c056129f9b63b7defe3. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TCJPK2080160.
    date published: 2026-07-05T12:31:54Z
  audio: 名探偵コナン メイン・テーマ (Cover)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
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      value: 4
    additional property: Danceability
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    additional property: Energy
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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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    additional property: Loudness (dB)
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      value: C
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ANIME CLASSIC 2
type: MusicAlbum
date published: 2020-04-15

Crying Violin
type: MusicAlbum
date published: 2020-08-05

AYAKO TIMES
type: MusicAlbum
date published: 2020-09-30

AYAKO TIMES
type: MusicAlbum
date published: 2020-09-30

AYAKO TIMES 10th Anniversary Concert (Live)
type: MusicAlbum
date published: 2021-04-21

AYAKO TIMES 10th Anniversary Concert (Live)
type: MusicAlbum
date published: 2021-04-21