del Carmen
type: MusicGroup
popularity: 5
followers: 67
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfc1215ca3cea1b9efa7f59973e19888c04cff8c54e47bc85df80af847386c017
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/bc49a8aa-feb7-484a-8684-4b41f4576ed7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bc49a8aa-feb7-484a-8684-4b41f4576ed7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bc49a8aa-feb7-484a-8684-4b41f4576ed7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfc1215ca3cea1b9efa7f59973e19888c04cff8c54e47bc85df80af847386c017","name":"del Carmen","registered_at":"2026-06-20T17:46:41Z","symbol":"NIM1670589","token_address":"0xe80df0a8a9da3c763bd52f815563b2a6586512c6","type":"artist","uuid":"bc49a8aa-feb7-484a-8684-4b41f4576ed7"}
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 0xfc1215ca3cea1b9efa7f59973e19888c04cff8c54e47bc85df80af847386c017. 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/bc49a8aa-feb7-484a-8684-4b41f4576ed7.json and https://artists.proofprofile.net/proofs/artist/bc49a8aa-feb7-484a-8684-4b41f4576ed7.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xfc1215ca3cea1b9efa7f59973e19888c04cff8c54e47bc85df80af847386c017","name":"del Carmen","registered_at":"2026-06-20T17:46:41Z","symbol":"NIM1670589","token_address":"0xe80df0a8a9da3c763bd52f815563b2a6586512c6","type":"artist","uuid":"bc49a8aa-feb7-484a-8684-4b41f4576ed7"}
album: Sarah
  type: MusicAlbum
  date published: 2025-01-24
  track: Sarah
    type: MusicRecording
    duration: PT4M35S
    duration ms: 275356
    explicit: false
    by artist: del Carmen
    in album: Sarah
      type: MusicAlbum
      date published: 2025-01-24
    isrc code: QMFMF2426341
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T16:02:04+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfd3d372c283adb3ce9e1dd400c9e8d4b6b7c191acf19b3af181f2fbbe1ff2cba
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2426341
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0xfd3d372c283adb3ce9e1dd400c9e8d4b6b7c191acf19b3af181f2fbbe1ff2cba. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2426341 — a six-check JSON result.
      date published: 2026-07-05T19:27:56Z
    audio: Sarah
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 110.945
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.642
      additional property: Energy
        type: PropertyValue
        value: 0.793
      additional property: Speechiness
        type: PropertyValue
        value: 0.026
      additional property: Acousticness
        type: PropertyValue
        value: 0.012
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.325
      additional property: Liveness
        type: PropertyValue
        value: 0.153
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.663
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.843
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Carmen and the Flowers
  type: MusicAlbum
  date published: 2025-02-14