Los Cantores del Alba
type: MusicGroup
genre: folklore argentino
popularity: 3
followers: 147
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xb13e86068aa358185e494b23257c3706963dc15dab6e6c46309034df9b8d49d4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cd35045a-9f01-4fb7-8834-08704d588f3d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cd35045a-9f01-4fb7-8834-08704d588f3d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cd35045a-9f01-4fb7-8834-08704d588f3d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb13e86068aa358185e494b23257c3706963dc15dab6e6c46309034df9b8d49d4","name":"Los Cantores del Alba","registered_at":"2026-06-20T23:44:54Z","symbol":"NIM1753066","token_address":"0xce783d7c7c44a17818d7a45391e225b1485c9d60","type":"artist","uuid":"cd35045a-9f01-4fb7-8834-08704d588f3d"}
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 0xb13e86068aa358185e494b23257c3706963dc15dab6e6c46309034df9b8d49d4. 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/cd35045a-9f01-4fb7-8834-08704d588f3d.json and https://artists.proofprofile.net/proofs/artist/cd35045a-9f01-4fb7-8834-08704d588f3d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xb13e86068aa358185e494b23257c3706963dc15dab6e6c46309034df9b8d49d4","name":"Los Cantores del Alba","registered_at":"2026-06-20T23:44:54Z","symbol":"NIM1753066","token_address":"0xce783d7c7c44a17818d7a45391e225b1485c9d60","type":"artist","uuid":"cd35045a-9f01-4fb7-8834-08704d588f3d"}
album: Seleccion Dorada, Musica Folk Argentina
  type: MusicAlbum
  date published: 1975
  track: Serenata para una Flor
    type: MusicRecording
    duration: PT3M6S
    duration ms: 186880
    explicit: false
    by artist: Los Cantores del Alba
    in album: Seleccion Dorada, Musica Folk Argentina
      type: MusicAlbum
      date published: 1975
    genre: folklore argentino
    isrc code: GBLPF0296040
    additional property: CopyrightID
    additional property: CopyrightStatus
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    additional property: CopyrightChainExplorerURL
      type: PropertyValue
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    additional property: OTSHash
    additional property: OTSBitcoinBlock
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      value: 958749
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958749
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLPF0296040
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T18:32:18Z
    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
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59188cf6a58a47d235a60fa99209f08edd14d6c104e8c99ee3e8fdf4df057804. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:32:18Z), 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/GBLPF0296040.
      date published: 2026-07-19T18:32:18Z
    audio: Serenata para una Flor
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 106.915
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.51
      additional property: Energy
        type: PropertyValue
        value: 0.114
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.732
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.005
      additional property: Liveness
        type: PropertyValue
        value: 0.348
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.478
      additional property: Loudness (dB)
        type: PropertyValue
        value: -20.478
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major