Blackbird (Samuel Wright)
type: MusicGroup
genre: vocaloid
popularity: 2
followers: 80
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xff8d78a6af3f046943daa905ca79cb8913764e1af8e35946f119c86e4b3586f3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954017
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954017
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37340994-d47d-4677-b4d9-40adb31ee3f0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37340994-d47d-4677-b4d9-40adb31ee3f0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/37340994-d47d-4677-b4d9-40adb31ee3f0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:38:33Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xff8d78a6af3f046943daa905ca79cb8913764e1af8e35946f119c86e4b3586f3","name":"Blackbird (Samuel Wright)","registered_at":"2026-06-16T08:45:25Z","symbol":"NIM0998864","token_address":"0xe54fee97a5166c54c7a3eb24bbe5ce401ada52c8","type":"artist","uuid":"37340994-d47d-4677-b4d9-40adb31ee3f0"}
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 0xff8d78a6af3f046943daa905ca79cb8913764e1af8e35946f119c86e4b3586f3. Chain 2 (Bitcoin): anchored in block 954017 (2026-06-16T23:38:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37340994-d47d-4677-b4d9-40adb31ee3f0.json and https://artists.proofprofile.net/proofs/artist/37340994-d47d-4677-b4d9-40adb31ee3f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T23:38:33Z
  text: {"copyright_id":"0xff8d78a6af3f046943daa905ca79cb8913764e1af8e35946f119c86e4b3586f3","name":"Blackbird (Samuel Wright)","registered_at":"2026-06-16T08:45:25Z","symbol":"NIM0998864","token_address":"0xe54fee97a5166c54c7a3eb24bbe5ce401ada52c8","type":"artist","uuid":"37340994-d47d-4677-b4d9-40adb31ee3f0"}
album: Full Circle (Utau)
  type: MusicAlbum
  date published: 2015-03-31
album: Neural (Utau)
  type: MusicAlbum
  date published: 2015-07-01
  track: Am I Mainstream Yet? (feat. Utau Teto Kasane)
    type: MusicRecording
    duration: PT7M27S
    duration ms: 447200
    explicit: false
    by artist: Blackbird (Samuel Wright)
    in album: Neural (Utau)
      type: MusicAlbum
      date published: 2015-07-01
    genre: vocaloid
    isrc code: GBSMU2169743
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T11:32:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb20e970018755b526ef28a4b9b9b8bf31a4ab103a52f0eb9a02e665517456f2f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU2169743
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 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 0xb20e970018755b526ef28a4b9b9b8bf31a4ab103a52f0eb9a02e665517456f2f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBSMU2169743.
      date published: 2026-07-05T18:48:28Z
    audio: Am I Mainstream Yet? (feat. Utau Teto Kasane)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 149.982
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.52
      additional property: Energy
        type: PropertyValue
        value: 0.392
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      additional property: Acousticness
        type: PropertyValue
        value: 0.008
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.017
      additional property: Liveness
        type: PropertyValue
        value: 0.084
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.041
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.803
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Trepidation (Utau)
  type: MusicAlbum
  date published: 2016-04-15
album: Release (Utau)
  type: MusicAlbum
  date published: 2016-04-18
album: Prophecy (Utau)
  type: MusicAlbum
  date published: 2016-04-18
album: Anathema (feat. Utau Al!ce.16)
  type: MusicAlbum
  date published: 2016-11-08