Kuroneko Chelsea
type: MusicGroup
genre: anime
genre: j-rock
popularity: 25
followers: 7641
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x87dc2fa415f9875820f18c98e19d7c8efa2ebdced88030db617dcffd9dd7e019
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/a6b2143d-2dd2-449b-b33f-3b27f54dda6c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a6b2143d-2dd2-449b-b33f-3b27f54dda6c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a6b2143d-2dd2-449b-b33f-3b27f54dda6c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87dc2fa415f9875820f18c98e19d7c8efa2ebdced88030db617dcffd9dd7e019. 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/a6b2143d-2dd2-449b-b33f-3b27f54dda6c.json and https://artists.proofprofile.net/proofs/artist/a6b2143d-2dd2-449b-b33f-3b27f54dda6c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x87dc2fa415f9875820f18c98e19d7c8efa2ebdced88030db617dcffd9dd7e019","name":"Kuroneko Chelsea","registered_at":"2026-06-12T06:30:12Z","symbol":"NIM0214813","token_address":"0x9971a735fdc68a8b0f9c49107a1fc8d2d359757b","type":"artist","uuid":"a6b2143d-2dd2-449b-b33f-3b27f54dda6c"}
album: 猫 Pack
  type: MusicAlbum
  date published: 2010-05-26
album: 猫 Pack
  type: MusicAlbum
  date published: 2010-05-26
album: NUDE +
  type: MusicAlbum
  date published: 2011-05-25
album: NUDE +
  type: MusicAlbum
  date published: 2011-05-25
album: アナグラ
  type: MusicAlbum
  date published: 2011-10-31
  track: アナグラ
    type: MusicRecording
    duration: PT3M42S
    duration ms: 222320
    explicit: false
    by artist: Kuroneko Chelsea
    in album: アナグラ
      type: MusicAlbum
      date published: 2011-10-31
    genre: anime
    genre: j-rock
    isrc code: JPN301101341
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T06:10:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x623a4886782209c3782785a0f246f6d960e28dd7e3ea6e995966b667293c4519
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958251
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958251
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPN301101341
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T06:29:25Z
    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 0x623a4886782209c3782785a0f246f6d960e28dd7e3ea6e995966b667293c4519. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/JPN301101341.
      date published: 2026-07-16T06:29:25Z
    audio: アナグラ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 188.545
      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: 0.195
      additional property: Energy
        type: PropertyValue
        value: 0.994
      additional property: Speechiness
        type: PropertyValue
        value: 0.139
      additional property: Acousticness
        type: PropertyValue
        value: 0.026
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.335
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.377
      additional property: Loudness (dB)
        type: PropertyValue
        value: -1.719
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: アナグラ
  type: MusicAlbum
  date published: 2011-11-02
album: 猫Pack 2
  type: MusicAlbum
  date published: 2012-03-21
album: HARENTIC ZOO
  type: MusicAlbum
  date published: 2012-10-17
album: HARENTIC ZOO
  type: MusicAlbum
  date published: 2012-10-17
album: サニー
  type: MusicAlbum
  date published: 2014-03-19
album: Cans Of Freak Hits
  type: MusicAlbum
  date published: 2014-04-02
album: Cans Of Freak Hits
  type: MusicAlbum
  date published: 2014-04-02
album: しあわせ運べるように
  type: MusicAlbum
  date published: 2015-03-09
album: グッバイ
  type: MusicAlbum
  date published: 2016-02-03
album: グッバイ
  type: MusicAlbum
  date published: 2016-02-03
album: 青のララバイ-アニメedit.-
  type: MusicAlbum
  date published: 2016-04-07
  track: 青のララバイ-アニメedit.-
    type: MusicRecording
    duration: PT1M29S
    duration ms: 89733
    explicit: false
    by artist: Kuroneko Chelsea
    in album: 青のララバイ-アニメedit.-
      type: MusicAlbum
      date published: 2016-04-07
    genre: anime
    genre: j-rock
    isrc code: JPU901600875
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T13:22:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa4dc1781f33f5fd32ca2143025de120afb58dae29fbd3774c6dca846409cea95
    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
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: 青のララバイ-アニメedit.-
album: 青のララバイ (Special Edition)
album: Aono Lullaby - EP
album: 海沿いの街
album: LIFE IS A MIRACLE (Special Edition)
album: ベイビーユー

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPU901600875

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 0xa4dc1781f33f5fd32ca2143025de120afb58dae29fbd3774c6dca846409cea95. 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/JPU901600875.
date published: 2026-07-05T19:27:56Z

青のララバイ-アニメedit.-
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 178.307
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: 0.374
additional property: Energy
  type: PropertyValue
  value: 0.873
additional property: Speechiness
  type: PropertyValue
  value: 0.075
additional property: Acousticness
  type: PropertyValue
  value: 0
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.15
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.709
additional property: Loudness (dB)
  type: PropertyValue
  value: -2.815
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Minor

青のララバイ (Special Edition)
type: MusicAlbum
date published: 2016-06-01

青のララバイ (Special Edition)
type: MusicAlbum
date published: 2016-06-01

Aono Lullaby - EP
type: MusicAlbum
date published: 2016-06-03

海沿いの街
type: MusicAlbum
date published: 2017-02-08

海沿いの街
type: MusicAlbum
date published: 2017-02-08

LIFE IS A MIRACLE (Special Edition)
type: MusicAlbum
date published: 2017-02-22

LIFE IS A MIRACLE (Special Edition)
type: MusicAlbum
date published: 2017-02-22

ベイビーユー
type: MusicAlbum
date published: 2017-12-13
track: ベイビーユー
  type: MusicRecording
  duration: PT3M16S
  duration ms: 196413
  explicit: false
  by artist: Kuroneko Chelsea
  in album: ベイビーユー
    type: MusicAlbum
    date published: 2017-12-13
  genre: anime
  genre: j-rock
  isrc code: JPU901703449
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T22:55:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x36b56171e5137ac5797c462c5b0df15314ee246e3d35900e00e2848a1a61135b
  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/JPU901703449
  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 0x36b56171e5137ac5797c462c5b0df15314ee246e3d35900e00e2848a1a61135b. 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/JPU901703449.
    date published: 2026-07-04T11:19:20Z
  audio: ベイビーユー
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 147.857
    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: 0.548
    additional property: Energy
      type: PropertyValue
      value: 0.758
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.013
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.156
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.946
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.564
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

ベイビーユー
type: MusicAlbum
date published: 2017-12-13