Úrsula Cotallo
type: MusicGroup
popularity: 3
followers: 38
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8720e42075aee6e2f546e1525a5f613633da41c3d22ad47c3d61d8d3414b351c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954689
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954689
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e23606d7-010f-4fa8-a101-4ce4e3584029.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e23606d7-010f-4fa8-a101-4ce4e3584029.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e23606d7-010f-4fa8-a101-4ce4e3584029
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T10:35:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8720e42075aee6e2f546e1525a5f613633da41c3d22ad47c3d61d8d3414b351c","name":"Úrsula Cotallo","registered_at":"2026-06-21T07:17:59Z","symbol":"NIM1856384","token_address":"0x206e9732400d71bae11815024deb1aa414af9351","type":"artist","uuid":"e23606d7-010f-4fa8-a101-4ce4e3584029"}
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 0x8720e42075aee6e2f546e1525a5f613633da41c3d22ad47c3d61d8d3414b351c. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e23606d7-010f-4fa8-a101-4ce4e3584029.json and https://artists.proofprofile.net/proofs/artist/e23606d7-010f-4fa8-a101-4ce4e3584029.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T10:35:31Z
  text: {"copyright_id":"0x8720e42075aee6e2f546e1525a5f613633da41c3d22ad47c3d61d8d3414b351c","name":"Úrsula Cotallo","registered_at":"2026-06-21T07:17:59Z","symbol":"NIM1856384","token_address":"0x206e9732400d71bae11815024deb1aa414af9351","type":"artist","uuid":"e23606d7-010f-4fa8-a101-4ce4e3584029"}
album: ELDESEO
  type: MusicAlbum
  date published: 2025-10-17
  track: ELDESEO
    type: MusicRecording
    duration: PT2M29S
    duration ms: 149339
    explicit: false
    by artist: Úrsula Cotallo
    in album: ELDESEO
      type: MusicAlbum
      date published: 2025-10-17
    isrc code: QT3F82577461
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T10:22:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0fb989a54f78296f1fd4bb443738d145db9efd4c6631f5227bb3aae6233154f5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958397
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958397
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F82577461
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T10:29:45Z
    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 0x0fb989a54f78296f1fd4bb443738d145db9efd4c6631f5227bb3aae6233154f5. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QT3F82577461.
      date published: 2026-07-17T10:29:45Z
    audio: ELDESEO
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 134.949
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.657
      additional property: Energy
        type: PropertyValue
        value: 0.676
      additional property: Speechiness
        type: PropertyValue
        value: 0.103
      additional property: Acousticness
        type: PropertyValue
        value: 0.039
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.141
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.414
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.828
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor