Nina y Sebastián
type: MusicGroup
popularity: 9
followers: 2573
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcc6bdc389fd6f5cae66b16fe8e2ad97898c72c4ec844c3ced13906b45d09e562
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9584d528-9c7c-4ff8-86ac-964b1df30c51.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9584d528-9c7c-4ff8-86ac-964b1df30c51.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9584d528-9c7c-4ff8-86ac-964b1df30c51
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcc6bdc389fd6f5cae66b16fe8e2ad97898c72c4ec844c3ced13906b45d09e562","name":"Nina y Sebastián","registered_at":"2026-06-17T17:50:58Z","symbol":"NIM1472489","token_address":"0xfc15755bd132493d62b53a4675fee00fc5904bba","type":"artist","uuid":"9584d528-9c7c-4ff8-86ac-964b1df30c51"}
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 0xcc6bdc389fd6f5cae66b16fe8e2ad97898c72c4ec844c3ced13906b45d09e562. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9584d528-9c7c-4ff8-86ac-964b1df30c51.json and https://artists.proofprofile.net/proofs/artist/9584d528-9c7c-4ff8-86ac-964b1df30c51.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xcc6bdc389fd6f5cae66b16fe8e2ad97898c72c4ec844c3ced13906b45d09e562","name":"Nina y Sebastián","registered_at":"2026-06-17T17:50:58Z","symbol":"NIM1472489","token_address":"0xfc15755bd132493d62b53a4675fee00fc5904bba","type":"artist","uuid":"9584d528-9c7c-4ff8-86ac-964b1df30c51"}
album: Últimamente
  type: MusicAlbum
  date published: 2016-11-14
  track: Últimamente
    type: MusicRecording
    duration: PT3M5S
    duration ms: 185600
    explicit: false
    by artist: Nina y Sebastián
    in album: Últimamente
      type: MusicAlbum
      date published: 2016-11-14
    isrc code: QZ4JJ1617087
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T18:17:55+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd55ffec542b52f9401e95e3eaafffe2fdfc134d07691c579a78156fc6697e91f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958596
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958596
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ4JJ1617087
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T18:42:38Z
    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 0xd55ffec542b52f9401e95e3eaafffe2fdfc134d07691c579a78156fc6697e91f. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZ4JJ1617087.
      date published: 2026-07-18T18:42:38Z
    audio: Últimamente
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 151.974
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.626
      additional property: Energy
        type: PropertyValue
        value: 0.524
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.78
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.148
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.585
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.445
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Imposible
  type: MusicAlbum
  date published: 2016-11-14
album: Mar Dulce
  type: MusicAlbum
  date published: 2016-11-14
album: Navidad Sin Vos
  type: MusicAlbum
  date published: 2018-12-17
album: Dispersos
  type: MusicAlbum
  date published: 2020-01-07