以冬
type: MusicGroup
genre: gufeng
popularity: 4
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3309cd48eb2f18a1ea5809bc47b06776e570ff8536843fa2c55a35f5debbd2f4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954040
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954040
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3eab8ce2-9a19-4fc4-8cee-bd8d96262a77.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3eab8ce2-9a19-4fc4-8cee-bd8d96262a77.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3eab8ce2-9a19-4fc4-8cee-bd8d96262a77
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T03:05:45Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3309cd48eb2f18a1ea5809bc47b06776e570ff8536843fa2c55a35f5debbd2f4","name":"以冬","registered_at":"2026-06-16T11:23:35Z","symbol":"NIM1036600","token_address":"0xbba42807963492be22244579a02b51d4e16b32b0","type":"artist","uuid":"3eab8ce2-9a19-4fc4-8cee-bd8d96262a77"}
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 0x3309cd48eb2f18a1ea5809bc47b06776e570ff8536843fa2c55a35f5debbd2f4. Chain 2 (Bitcoin): anchored in block 954040 (2026-06-17T03:05:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3eab8ce2-9a19-4fc4-8cee-bd8d96262a77.json and https://artists.proofprofile.net/proofs/artist/3eab8ce2-9a19-4fc4-8cee-bd8d96262a77.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T03:05:45Z
  text: {"copyright_id":"0x3309cd48eb2f18a1ea5809bc47b06776e570ff8536843fa2c55a35f5debbd2f4","name":"以冬","registered_at":"2026-06-16T11:23:35Z","symbol":"NIM1036600","token_address":"0xbba42807963492be22244579a02b51d4e16b32b0","type":"artist","uuid":"3eab8ce2-9a19-4fc4-8cee-bd8d96262a77"}
album: 雷锋海
  type: MusicAlbum
  date published: 2024-03-13
album: 无人诗
  type: MusicAlbum
  date published: 2024-03-27
  track: 无人诗
    type: MusicRecording
    duration: PT4M12S
    duration ms: 252296
    explicit: false
    by artist: 以冬
    in album: 无人诗
      type: MusicAlbum
      date published: 2024-03-27
    genre: gufeng
    isrc code: QZYHM2410852
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T12:32:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x78939834f92c859be32417f62c37b07fa93a6e3d1ff911f67f2a1ecc1b434c1f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZYHM2410852
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0x78939834f92c859be32417f62c37b07fa93a6e3d1ff911f67f2a1ecc1b434c1f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZYHM2410852.
      date published: 2026-07-03T19:59:51Z
    audio: 无人诗
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 86.011
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.537
      additional property: Energy
        type: PropertyValue
        value: 0.363
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.854
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.065
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.308
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.384
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor