Los Congos
type: MusicGroup
popularity: 13
followers: 836
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x6006f9913fc577fd9712f5030fae002e96b0ed04a3cc2e0ef376926796accfcb
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953630
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/318de506-e8aa-40d0-8a76-59919c07d7b8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/318de506-e8aa-40d0-8a76-59919c07d7b8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/318de506-e8aa-40d0-8a76-59919c07d7b8
additional property: OTSTimestamp
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  value: 2026-06-14T12:06:27Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6006f9913fc577fd9712f5030fae002e96b0ed04a3cc2e0ef376926796accfcb","name":"Los Congos","registered_at":"2026-06-14T09:37:38Z","symbol":"NIM0412258","token_address":"0xaf098b278ba42460ee6e46e1ea1a806661a342a9","type":"artist","uuid":"318de506-e8aa-40d0-8a76-59919c07d7b8"}
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 0x6006f9913fc577fd9712f5030fae002e96b0ed04a3cc2e0ef376926796accfcb. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/318de506-e8aa-40d0-8a76-59919c07d7b8.json and https://artists.proofprofile.net/proofs/artist/318de506-e8aa-40d0-8a76-59919c07d7b8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T12:06:27Z
  text: {"copyright_id":"0x6006f9913fc577fd9712f5030fae002e96b0ed04a3cc2e0ef376926796accfcb","name":"Los Congos","registered_at":"2026-06-14T09:37:38Z","symbol":"NIM0412258","token_address":"0xaf098b278ba42460ee6e46e1ea1a806661a342a9","type":"artist","uuid":"318de506-e8aa-40d0-8a76-59919c07d7b8"}
album: Antologia De La Musica Afrocubana: Cantos, Toques De Paleros, Bata y Bembe
  type: MusicAlbum
  date published: 2013-02-21
album: Bayahonda Musica Raiz
  type: MusicAlbum
  date published: 2018-03-01
  track: Salve a San Antonio
    type: MusicRecording
    duration: PT4M42S
    duration ms: 282283
    explicit: false
    by artist: Los Congos
    in album: Bayahonda Musica Raiz
      type: MusicAlbum
      date published: 2018-03-01
    isrc code: FR10S2043505
    additional property: CopyrightID
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958462
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S2043505
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T23:17:53Z
    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 0xaca57d4d3fa634627257ebc85a235bd165662f17b1941aefe1e8fa7941477c83. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/FR10S2043505.
      date published: 2026-07-17T23:17:53Z
    audio: Salve a San Antonio
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.446
      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: 0.531
      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
        type: PropertyValue
        value: 0.403
      additional property: Acousticness
        type: PropertyValue
        value: 0.173
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.123
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.184
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.405
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Bayahonda Musica Raiz
  type: MusicAlbum
  date published: 2018-03-01