Los Dos Maulinos
type: MusicGroup
genre: chicha
popularity: 7
followers: 903
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/c49dc534-f438-4fee-8a64-eee17b16321f.ots
additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/c49dc534-f438-4fee-8a64-eee17b16321f.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c49dc534-f438-4fee-8a64-eee17b16321f
additional property: OTSTimestamp
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b3dde2d23d8930f0a2654771951adfce0ad326513c3dddcf94cb99a903f5e4. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c49dc534-f438-4fee-8a64-eee17b16321f.json and https://artists.proofprofile.net/proofs/artist/c49dc534-f438-4fee-8a64-eee17b16321f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0xf5b3dde2d23d8930f0a2654771951adfce0ad326513c3dddcf94cb99a903f5e4","name":"Los Dos Maulinos","registered_at":"2026-06-20T20:25:28Z","symbol":"NIM1706800","token_address":"0xb8225ab4fe66002e3d3000bd170c571ad65dcbc8","type":"artist","uuid":"c49dc534-f438-4fee-8a64-eee17b16321f"}
album: Vamos Cantando Cantores
  type: MusicAlbum
  date published: 2016-09-27
album: Vamos Cantando Cantores
  type: MusicAlbum
  date published: 2018-01-01
  track: Verán Como Corre el Agua
    type: MusicRecording
    duration: PT2M21S
    duration ms: 141040
    explicit: false
    by artist: Los Dos Maulinos
    in album: Vamos Cantando Cantores
      type: MusicAlbum
      date published: 2018-01-01
    genre: chicha
    isrc code: TCACS1620707
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      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACS1620707
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 0xe8fb2b811175496e5bb0df12753b96e5b93f3832d9be623d59257c8c661ea3c2. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCACS1620707.
      date published: 2026-07-06T01:25:57Z
    audio: Verán Como Corre el Agua
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 79.475
      additional property: Musical Key
        type: PropertyValue
        value: 7
      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
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      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
        type: PropertyValue
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      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.125
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.663
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.163
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Vamos Cantando Cantores
  type: MusicAlbum
  date published: 2018-01-01