Leon Vincent
type: MusicGroup
popularity: 4
followers: 242
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbdf8cfacfef48f164c2d9187f8669880eab7aec3c3a5dbf3cfad3762a4e8aed5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953896
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953896
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/10766c74-d276-4988-a536-a3b4b3295250.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/10766c74-d276-4988-a536-a3b4b3295250.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/10766c74-d276-4988-a536-a3b4b3295250
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:05:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbdf8cfacfef48f164c2d9187f8669880eab7aec3c3a5dbf3cfad3762a4e8aed5","name":"Leon Vincent","registered_at":"2026-06-15T19:21:09Z","symbol":"NIM0806851","token_address":"0xbe4b57eeb81bb4b763df383b9c2e5e55bd73f82c","type":"artist","uuid":"10766c74-d276-4988-a536-a3b4b3295250"}
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 0xbdf8cfacfef48f164c2d9187f8669880eab7aec3c3a5dbf3cfad3762a4e8aed5. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10766c74-d276-4988-a536-a3b4b3295250.json and https://artists.proofprofile.net/proofs/artist/10766c74-d276-4988-a536-a3b4b3295250.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0xbdf8cfacfef48f164c2d9187f8669880eab7aec3c3a5dbf3cfad3762a4e8aed5","name":"Leon Vincent","registered_at":"2026-06-15T19:21:09Z","symbol":"NIM0806851","token_address":"0xbe4b57eeb81bb4b763df383b9c2e5e55bd73f82c","type":"artist","uuid":"10766c74-d276-4988-a536-a3b4b3295250"}
album: It's Christmas Again
  type: MusicAlbum
  date published: 2023-12-09
album: Why Not?
  type: MusicAlbum
  date published: 2024-08-30
album: TOKYO
  type: MusicAlbum
  date published: 2024-11-21
  track: TOKYO
    type: MusicRecording
    duration: PT2M48S
    duration ms: 168065
    explicit: false
    by artist: Leon Vincent
    in album: TOKYO
      type: MusicAlbum
      date published: 2024-11-21
    isrc code: QZWFX2459613
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T20:55:13+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4366f6c30ea3b12dd71163e19e19a88b13994ea897000a070e5e9efc85f7ea46
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956656
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956656
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFX2459613
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T14:03:39Z
    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 0x4366f6c30ea3b12dd71163e19e19a88b13994ea897000a070e5e9efc85f7ea46. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZWFX2459613.
      date published: 2026-07-04T14:03:39Z
    audio: TOKYO
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 159.989
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.597
      additional property: Energy
        type: PropertyValue
        value: 0.769
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.283
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.444
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.457
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: what's left of me
  type: MusicAlbum
  date published: 2025-10-22