巴(CV.佐倉綾音)
type: MusicGroup
genre: anime
popularity: 14
followers: 282
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc474a9e11cf9565af0d2f38a77d77e093e27c23796d6a0d841e2ddfa9bb70b71
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953621
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953621
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1fe0e36a-32dc-4907-9d30-78fcd5ef65a7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1fe0e36a-32dc-4907-9d30-78fcd5ef65a7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1fe0e36a-32dc-4907-9d30-78fcd5ef65a7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T09:42:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc474a9e11cf9565af0d2f38a77d77e093e27c23796d6a0d841e2ddfa9bb70b71","name":"巴(CV.佐倉綾音)","registered_at":"2026-06-14T07:44:14Z","symbol":"NIM0385231","token_address":"0x302b7d25c579646ebd25d603c6da0f307f7dc85a","type":"artist","uuid":"1fe0e36a-32dc-4907-9d30-78fcd5ef65a7"}
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc474a9e11cf9565af0d2f38a77d77e093e27c23796d6a0d841e2ddfa9bb70b71. Chain 2 (Bitcoin): anchored in block 953621 (2026-06-14T09:42:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1fe0e36a-32dc-4907-9d30-78fcd5ef65a7.json and https://artists.proofprofile.net/proofs/artist/1fe0e36a-32dc-4907-9d30-78fcd5ef65a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T09:42:57Z
  text: {"copyright_id":"0xc474a9e11cf9565af0d2f38a77d77e093e27c23796d6a0d841e2ddfa9bb70b71","name":"巴(CV.佐倉綾音)","registered_at":"2026-06-14T07:44:14Z","symbol":"NIM0385231","token_address":"0x302b7d25c579646ebd25d603c6da0f307f7dc85a","type":"artist","uuid":"1fe0e36a-32dc-4907-9d30-78fcd5ef65a7"}
album: ああ人生に涙あり
  type: MusicAlbum
  date published: 2021-07-29
  track: ああ人生に涙あり
    type: MusicRecording
    duration: PT4M8S
    duration ms: 248189
    explicit: false
    by artist: 巴(CV.佐倉綾音)
    in album: ああ人生に涙あり
      type: MusicAlbum
      date published: 2021-07-29
    genre: anime
    isrc code: JPT332100024
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T16:14:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x014e44916e65f18772b04181b05477ced8084106bb9cc665f3f28e0b8e7f9660
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958170
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958170
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPT332100024
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T16:21:50Z
    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 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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014e44916e65f18772b04181b05477ced8084106bb9cc665f3f28e0b8e7f9660. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/JPT332100024.
      date published: 2026-07-15T16:21:50Z
    audio: ああ人生に涙あり
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 184.889
      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: 0.343
      additional property: Energy
        type: PropertyValue
        value: 0.902
      additional property: Speechiness
        type: PropertyValue
        value: 0.111
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.223
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.234
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.626
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ah Jinsei ni Namida Ari
  type: MusicAlbum
  date published: 2021-07-29
  track: Ah Jinsei ni Namida Ari - original karaoke
    type: MusicRecording
    duration: PT4M8S
    duration ms: 248189
    explicit: false
    by artist: 巴(CV.佐倉綾音)
    in album: Ah Jinsei ni Namida Ari
      type: MusicAlbum
      date published: 2021-07-29
    genre: anime
    isrc code: JPT332100025
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T16:14:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x472eb36f741caf62e9e9625089f74d32bf1f1201ccd53fb93111e112e4091964
    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/JPT332100025
    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 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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472eb36f741caf62e9e9625089f74d32bf1f1201ccd53fb93111e112e4091964. 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/JPT332100025.
      date published: 2026-07-05T19:27:56Z
    audio: Ah Jinsei ni Namida Ari - original karaoke
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 92.509
      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: 0.44
      additional property: Energy
        type: PropertyValue
        value: 0.903
      additional property: Speechiness
        type: PropertyValue
        value: 0.06
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.764
      additional property: Liveness
        type: PropertyValue
        value: 0.217
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Valence (Positivity)
type: PropertyValue
value: 0.273

Loudness (dB)
type: PropertyValue
value: -9.224

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Minor