岡崎 契(CV.梶裕貴)
type: MusicGroup
popularity: 3
followers: 251
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x489fa9cbbd9cbdec0904574885826651d3964db9054cf340652eea55823788d0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/db806f31-727c-47c0-b7b5-5fbfad0d93d4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/db806f31-727c-47c0-b7b5-5fbfad0d93d4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/db806f31-727c-47c0-b7b5-5fbfad0d93d4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x489fa9cbbd9cbdec0904574885826651d3964db9054cf340652eea55823788d0","name":"岡崎 契(CV.梶裕貴)","registered_at":"2026-06-21T04:35:45Z","symbol":"NIM1821054","token_address":"0xc756f64c7d8415d29a41a48aa0e37d2fb666ce90","type":"artist","uuid":"db806f31-727c-47c0-b7b5-5fbfad0d93d4"}
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 0x489fa9cbbd9cbdec0904574885826651d3964db9054cf340652eea55823788d0. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db806f31-727c-47c0-b7b5-5fbfad0d93d4.json and https://artists.proofprofile.net/proofs/artist/db806f31-727c-47c0-b7b5-5fbfad0d93d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x489fa9cbbd9cbdec0904574885826651d3964db9054cf340652eea55823788d0","name":"岡崎 契(CV.梶裕貴)","registered_at":"2026-06-21T04:35:45Z","symbol":"NIM1821054","token_address":"0xc756f64c7d8415d29a41a48aa0e37d2fb666ce90","type":"artist","uuid":"db806f31-727c-47c0-b7b5-5fbfad0d93d4"}
album: Collar×Malice Character CD (vol.2 岡崎 契)
  type: MusicAlbum
  date published: 2017-08-30
  track: My Precious
    type: MusicRecording
    duration: PT3M55S
    duration ms: 235666
    explicit: false
    by artist: 岡崎 契(CV.梶裕貴)
    in album: Collar×Malice Character CD (vol.2 岡崎 契)
      type: MusicAlbum
      date published: 2017-08-30
    isrc code: JPV201700322
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T07:24:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf1e3a351d2468980d64ec9d83e8b2aab0d6a108da0922c0acbb0447b58e3c486
    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/JPV201700322
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0xf1e3a351d2468980d64ec9d83e8b2aab0d6a108da0922c0acbb0447b58e3c486. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPV201700322.
      date published: 2026-07-04T10:04:33Z
    audio: My Precious
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.97
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.667
      additional property: Energy
        type: PropertyValue
        value: 0.784
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      additional property: Acousticness
        type: PropertyValue
        value: 0.057
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.305
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.735
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.87
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major