Oscar Guzmán
type: MusicGroup
genre: flamenco
popularity: 2
followers: 79
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x51314969eb5beca9376ded57ca453bad171dad8173ce135bee5137abc0686dcc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954043
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954043
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3f5f62b9-449d-42c5-ba5d-f5cbc57adb49.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3f5f62b9-449d-42c5-ba5d-f5cbc57adb49.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3f5f62b9-449d-42c5-ba5d-f5cbc57adb49
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:15:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x51314969eb5beca9376ded57ca453bad171dad8173ce135bee5137abc0686dcc","name":"Oscar Guzmán","registered_at":"2026-06-16T11:37:24Z","symbol":"NIM1039895","token_address":"0x2a236098618da75c93153f630b0308b17a5c8d73","type":"artist","uuid":"3f5f62b9-449d-42c5-ba5d-f5cbc57adb49"}
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 0x51314969eb5beca9376ded57ca453bad171dad8173ce135bee5137abc0686dcc. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3f5f62b9-449d-42c5-ba5d-f5cbc57adb49.json and https://artists.proofprofile.net/proofs/artist/3f5f62b9-449d-42c5-ba5d-f5cbc57adb49.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T04:15:20Z
  text: {"copyright_id":"0x51314969eb5beca9376ded57ca453bad171dad8173ce135bee5137abc0686dcc","name":"Oscar Guzmán","registered_at":"2026-06-16T11:37:24Z","symbol":"NIM1039895","token_address":"0x2a236098618da75c93153f630b0308b17a5c8d73","type":"artist","uuid":"3f5f62b9-449d-42c5-ba5d-f5cbc57adb49"}
album: La Calle del Recuerdo
  type: MusicAlbum
  date published: 2013-04-08
  track: Cañera - Bulerías
    type: MusicRecording
    duration: PT6M41S
    duration ms: 401986
    explicit: false
    by artist: Oscar Guzmán
    in album: La Calle del Recuerdo
      type: MusicAlbum
      date published: 2013-04-08
    genre: flamenco
    isrc code: ESA081300273
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T19:43:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0b378e233ca4dee6a55629754787245b44c5d5283cd3c1bfd3c30d65002d9d39
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA081300273
    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 0x0b378e233ca4dee6a55629754787245b44c5d5283cd3c1bfd3c30d65002d9d39. 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/ESA081300273.
      date published: 2026-07-06T01:25:57Z
    audio: Cañera - Bulerías
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.983
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.737
      additional property: Energy
        type: PropertyValue
        value: 0.395
      additional property: Speechiness
        type: PropertyValue
        value: 0.06
      additional property: Acousticness
        type: PropertyValue
        value: 0.837
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.794
      additional property: Liveness
        type: PropertyValue
        value: 0.054
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.549
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.049
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor