El Gringo Brzezñiaskiewicz
type: MusicGroup
genre: polka
popularity: 4
followers: 141
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4723eaee3a4b3fb7ca18a04279bd4ce64c5bb05c595f477ba1146d680eb1e135
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954689
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954689
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e25de51b-f6ed-4a18-b27d-3828d8fb654f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e25de51b-f6ed-4a18-b27d-3828d8fb654f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e25de51b-f6ed-4a18-b27d-3828d8fb654f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T10:35:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4723eaee3a4b3fb7ca18a04279bd4ce64c5bb05c595f477ba1146d680eb1e135","name":"El Gringo Brzezñiaskiewicz","registered_at":"2026-06-21T07:21:50Z","symbol":"NIM1857026","token_address":"0x7d31ec2be09e697c405c3d0b28e167184d10cea8","type":"artist","uuid":"e25de51b-f6ed-4a18-b27d-3828d8fb654f"}
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 0x4723eaee3a4b3fb7ca18a04279bd4ce64c5bb05c595f477ba1146d680eb1e135. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e25de51b-f6ed-4a18-b27d-3828d8fb654f.json and https://artists.proofprofile.net/proofs/artist/e25de51b-f6ed-4a18-b27d-3828d8fb654f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T10:35:31Z
  text: {"copyright_id":"0x4723eaee3a4b3fb7ca18a04279bd4ce64c5bb05c595f477ba1146d680eb1e135","name":"El Gringo Brzezñiaskiewicz","registered_at":"2026-06-21T07:21:50Z","symbol":"NIM1857026","token_address":"0x7d31ec2be09e697c405c3d0b28e167184d10cea8","type":"artist","uuid":"e25de51b-f6ed-4a18-b27d-3828d8fb654f"}
album: Que Bien Bailas
  type: MusicAlbum
  date published: 2010-01-04
album: El Gringazo
  type: MusicAlbum
  date published: 2012-04-18
  track: Kozaco de Podolia
    type: MusicRecording
    duration: PT2M0S
    duration ms: 120093
    explicit: false
    by artist: El Gringo Brzezñiaskiewicz
    in album: El Gringazo
      type: MusicAlbum
      date published: 2012-04-18
    genre: polka
    isrc code: US6R21485636
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T06:13:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3b14304d408fb60fe0e3e4778a21e8fff884aa82d083c45e238c2c7023c08e24
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958980
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958980
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6R21485636
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T07:04:12Z
    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 0x3b14304d408fb60fe0e3e4778a21e8fff884aa82d083c45e238c2c7023c08e24. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/US6R21485636.
      date published: 2026-07-21T07:04:12Z
    audio: Kozaco de Podolia
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 137.003
      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: 0.777
      additional property: Energy
        type: PropertyValue
        value: 0.878
      additional property: Speechiness
        type: PropertyValue
        value: 0.051
      additional property: Acousticness
        type: PropertyValue
        value: 0.54
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.017
      additional property: Liveness
        type: PropertyValue
        value: 0.193
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.961
      additional property: Loudness (dB)
        type: PropertyValue
        value: -1.529
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major