Dúo Paycuna
type: MusicGroup
popularity: 4
followers: 125
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf3410e41d21c8bb8fcae98ea38cc049d18224ed539bbe0d6df3d27daf0f2b726
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e47d0cc1-71f6-4ece-9f9a-cf186e247a34.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e47d0cc1-71f6-4ece-9f9a-cf186e247a34.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e47d0cc1-71f6-4ece-9f9a-cf186e247a34
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf3410e41d21c8bb8fcae98ea38cc049d18224ed539bbe0d6df3d27daf0f2b726","name":"Dúo Paycuna","registered_at":"2026-06-21T07:48:09Z","symbol":"NIM1866116","token_address":"0xd8f2d0977203716e94c759a751454b6d3e3386c1","type":"artist","uuid":"e47d0cc1-71f6-4ece-9f9a-cf186e247a34"}
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 0xf3410e41d21c8bb8fcae98ea38cc049d18224ed539bbe0d6df3d27daf0f2b726. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e47d0cc1-71f6-4ece-9f9a-cf186e247a34.json and https://artists.proofprofile.net/proofs/artist/e47d0cc1-71f6-4ece-9f9a-cf186e247a34.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0xf3410e41d21c8bb8fcae98ea38cc049d18224ed539bbe0d6df3d27daf0f2b726","name":"Dúo Paycuna","registered_at":"2026-06-21T07:48:09Z","symbol":"NIM1866116","token_address":"0xd8f2d0977203716e94c759a751454b6d3e3386c1","type":"artist","uuid":"e47d0cc1-71f6-4ece-9f9a-cf186e247a34"}
album: Lao la Dormida
  type: MusicAlbum
  date published: 2022-11-12
  track: Lao la Dormida
    type: MusicRecording
    duration: PT2M29S
    duration ms: 149668
    explicit: false
    by artist: Dúo Paycuna
    in album: Lao la Dormida
      type: MusicAlbum
      date published: 2022-11-12
    isrc code: UKXN22271017
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T02:00:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3595a0db2d9aeff8f6af936e053721e560f2e927a44db4307743ee2b95a4f8e8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22271017
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0x3595a0db2d9aeff8f6af936e053721e560f2e927a44db4307743ee2b95a4f8e8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/UKXN22271017.
      date published: 2026-07-04T11:19:20Z
    audio: Lao la Dormida
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 154.589
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.649
      additional property: Energy
        type: PropertyValue
        value: 0.809
      additional property: Speechiness
        type: PropertyValue
        value: 0.12
      additional property: Acousticness
        type: PropertyValue
        value: 0.677
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.186
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.951
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.42
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Lao la Dormida
  type: MusicAlbum
  date published: 2023