Los Reyes Del K.O
type: MusicGroup
genre: blues
genre: cool jazz
popularity: 8
followers: 1576
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794b9a23f4f66ac09787035ca47869ad543dc0190d8ec0759faba08890fb9e9c. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a05871c9-fcc8-4eed-8d38-414c0b861f0a.json and https://artists.proofprofile.net/proofs/artist/a05871c9-fcc8-4eed-8d38-414c0b861f0a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x794b9a23f4f66ac09787035ca47869ad543dc0190d8ec0759faba08890fb9e9c","name":"Los Reyes Del K.O","registered_at":"2026-06-20T05:48:25Z","symbol":"NIM1530021","token_address":"0x6cbfbf870b1b5b0dfa68d1681110d24ef97e2a1f","type":"artist","uuid":"a05871c9-fcc8-4eed-8d38-414c0b861f0a"}
album: Los reyes del K.O
  type: MusicAlbum
  date published: 2002
album: Hot tin roof
  type: MusicAlbum
  date published: 2006-07-05
  track: The way you make me feel
    type: MusicRecording
    duration: PT4M58S
    duration ms: 298893
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    by artist: Los Reyes Del K.O
    in album: Hot tin roof
      type: MusicAlbum
      date published: 2006-07-05
    genre: blues
    genre: cool jazz
    isrc code: ES8260610402
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      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T15:31:18Z
    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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe155a5d0a7c401daefe184267832238f78faebbfe304833836915608c99727a6. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/ES8260610402.
      date published: 2026-07-21T15:31:18Z
    audio: The way you make me feel
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.878
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.576
      additional property: Energy
        type: PropertyValue
        value: 0.922
      additional property: Speechiness
        type: PropertyValue
        value: 0.158
      additional property: Acousticness
        type: PropertyValue
        value: 0.103
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.094
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.714
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.982
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Live In Yorckschlösschen Berlin
  type: MusicAlbum
  date published: 2008-01-01
album: It´s fiesta time
  type: MusicAlbum
  date published: 2010-07-15