Martin Arroyo y Clase 90
type: MusicGroup
genre: salsa
genre: salsa romantica
popularity: 8
followers: 274
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x6ce23b61621cc361820a351bbd84388d378c54c20d01a5b022431d52009f2077
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
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additional property: OTSRecordURL
  type: PropertyValue
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b1ce2b1c-6fcd-4798-ace9-a3b857863555
additional property: OTSTimestamp
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  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
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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 0x6ce23b61621cc361820a351bbd84388d378c54c20d01a5b022431d52009f2077. 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/b1ce2b1c-6fcd-4798-ace9-a3b857863555.json and https://artists.proofprofile.net/proofs/artist/b1ce2b1c-6fcd-4798-ace9-a3b857863555.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x6ce23b61621cc361820a351bbd84388d378c54c20d01a5b022431d52009f2077","name":"Martin Arroyo y Clase 90","registered_at":"2026-06-20T12:32:42Z","symbol":"NIM1613456","token_address":"0xa410505707443df6b9c3f60edb19824566f314dc","type":"artist","uuid":"b1ce2b1c-6fcd-4798-ace9-a3b857863555"}
album: Clase 90
  type: MusicAlbum
  date published: 2019-05-03
  track: Por Fin
    type: MusicRecording
    duration: PT4M10S
    duration ms: 250400
    explicit: false
    by artist: Martin Arroyo y Clase 90
    in album: Clase 90
      type: MusicAlbum
      date published: 2019-05-03
    genre: salsa
    genre: salsa romantica
    isrc code: US3Z41900032
    additional property: CopyrightID
    additional property: CopyrightStatus
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      value: registered
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      value: https://blockstream.info/api/block-height/958601
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3Z41900032
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T19:27:02Z
    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 0xb2642065d77d7c0f670116fec77b9d0e86bef0c6865cd8405d432b35d6560b7d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/US3Z41900032.
      date published: 2026-07-18T19:27:02Z
    audio: Por Fin
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 167.487
      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: 0.468
      additional property: Energy
        type: PropertyValue
        value: 0.773
      additional property: Speechiness
        type: PropertyValue
        value: 0.053
      additional property: Acousticness
        type: PropertyValue
        value: 0.432
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.103
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.739
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.428
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor