Yann Lean
type: MusicGroup
popularity: 3
followers: 133
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc2eedf34b80ca3b41234b17dac6a2e4a1b146bb7c26dc7a4781130932215c9f7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954124
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7bb19b45-d1b4-455c-9e30-b2ee7948f882.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7bb19b45-d1b4-455c-9e30-b2ee7948f882.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7bb19b45-d1b4-455c-9e30-b2ee7948f882
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T18:22:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc2eedf34b80ca3b41234b17dac6a2e4a1b146bb7c26dc7a4781130932215c9f7","name":"Yann Lean","registered_at":"2026-06-17T08:41:56Z","symbol":"NIM1341560","token_address":"0x665cf30bc69991e183523b193867917302f2b02a","type":"artist","uuid":"7bb19b45-d1b4-455c-9e30-b2ee7948f882"}
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 0xc2eedf34b80ca3b41234b17dac6a2e4a1b146bb7c26dc7a4781130932215c9f7. Chain 2 (Bitcoin): anchored in block 954124 (2026-06-17T18:22:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7bb19b45-d1b4-455c-9e30-b2ee7948f882.json and https://artists.proofprofile.net/proofs/artist/7bb19b45-d1b4-455c-9e30-b2ee7948f882.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T18:22:18Z
  text: {"copyright_id":"0xc2eedf34b80ca3b41234b17dac6a2e4a1b146bb7c26dc7a4781130932215c9f7","name":"Yann Lean","registered_at":"2026-06-17T08:41:56Z","symbol":"NIM1341560","token_address":"0x665cf30bc69991e183523b193867917302f2b02a","type":"artist","uuid":"7bb19b45-d1b4-455c-9e30-b2ee7948f882"}
album: Yosakoï EP
  type: MusicAlbum
  date published: 2014-09-15
  track: Yosakoï - Traumer Extended Remix
    type: MusicRecording
    duration: PT8M30S
    duration ms: 510091
    explicit: false
    by artist: Yann Lean
    in album: Yosakoï EP
      type: MusicAlbum
      date published: 2014-09-15
    isrc code: QMVZM9316903
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T00:47:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5ee58971afd78939e0136a763695c12f1f88773bbd6538efd746324494e27b60
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958951
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958951
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMVZM9316903
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T03:50:18Z
    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 0x5ee58971afd78939e0136a763695c12f1f88773bbd6538efd746324494e27b60. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:50:18Z), 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/QMVZM9316903.
      date published: 2026-07-21T03:50:18Z
    audio: Yosakoï - Traumer Extended Remix
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 132.002
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.742
      additional property: Energy
        type: PropertyValue
        value: 0.896
      additional property: Speechiness
        type: PropertyValue
        value: 0.05
      additional property: Acousticness
        type: PropertyValue
        value: 0.03
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.949
      additional property: Liveness
        type: PropertyValue
        value: 0.531
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.294
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.913
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: The Quest
  type: MusicAlbum
  date published: 2015-07-06
album: The Quest
  type: MusicAlbum
  date published: 2015-07-06