Contrabando 57
type: MusicGroup
popularity: 3
followers: 271
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf01ce2cdeac79b5d600256e70c6ba80b9dbba137420b9806eb0e18018ac985af
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/71e15379-98da-464f-81d6-cbc108ed74fb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/71e15379-98da-464f-81d6-cbc108ed74fb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/71e15379-98da-464f-81d6-cbc108ed74fb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf01ce2cdeac79b5d600256e70c6ba80b9dbba137420b9806eb0e18018ac985af","name":"Contrabando 57","registered_at":"2026-06-17T05:19:18Z","symbol":"NIM1293266","token_address":"0x7c7b42f56a0fb000390e53d3a632934c0df64048","type":"artist","uuid":"71e15379-98da-464f-81d6-cbc108ed74fb"}
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 0xf01ce2cdeac79b5d600256e70c6ba80b9dbba137420b9806eb0e18018ac985af. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/71e15379-98da-464f-81d6-cbc108ed74fb.json and https://artists.proofprofile.net/proofs/artist/71e15379-98da-464f-81d6-cbc108ed74fb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xf01ce2cdeac79b5d600256e70c6ba80b9dbba137420b9806eb0e18018ac985af","name":"Contrabando 57","registered_at":"2026-06-17T05:19:18Z","symbol":"NIM1293266","token_address":"0x7c7b42f56a0fb000390e53d3a632934c0df64048","type":"artist","uuid":"71e15379-98da-464f-81d6-cbc108ed74fb"}
album: Al Borde
  type: MusicAlbum
  date published: 2018-05-08
  track: Al Borde
    type: MusicRecording
    duration: PT3M44S
    duration ms: 224417
    explicit: false
    by artist: Contrabando 57
    in album: Al Borde
      type: MusicAlbum
      date published: 2018-05-08
    isrc code: AEA0Q1870392
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T23:37:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4a54c0be7be216d7dd5d76e9ea588a6d7ce1649fa42f6e1cad8d0662aa080d22
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958489
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958489
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AEA0Q1870392
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T04:13:26Z
    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 0x4a54c0be7be216d7dd5d76e9ea588a6d7ce1649fa42f6e1cad8d0662aa080d22. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/AEA0Q1870392.
      date published: 2026-07-18T04:13:26Z
    audio: Al Borde
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 89.989
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.699
      additional property: Energy
        type: PropertyValue
        value: 0.591
      additional property: Speechiness
        type: PropertyValue
        value: 0.126
      additional property: Acousticness
        type: PropertyValue
        value: 0.511
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.297
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.8
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.899
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Al Borde
  type: MusicAlbum
  date published: 2018-05-08