Facu Xavier
type: MusicGroup
popularity: 2
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6689b1ace8b92d82b2498575ae609702dd611b707f0fb74a813c85f9c790d554
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954125
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954125
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b8cc8c2-6e3c-491f-adb2-54bbb8aaf1ba.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b8cc8c2-6e3c-491f-adb2-54bbb8aaf1ba.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7b8cc8c2-6e3c-491f-adb2-54bbb8aaf1ba
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T18:27:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6689b1ace8b92d82b2498575ae609702dd611b707f0fb74a813c85f9c790d554","name":"Facu Xavier","registered_at":"2026-06-17T08:44:32Z","symbol":"NIM1342180","token_address":"0xaff6b8ecc4ad42e3b81f458fed40618b0e0ef6e9","type":"artist","uuid":"7b8cc8c2-6e3c-491f-adb2-54bbb8aaf1ba"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6689b1ace8b92d82b2498575ae609702dd611b707f0fb74a813c85f9c790d554. Chain 2 (Bitcoin): anchored in block 954125 (2026-06-17T18:27:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b8cc8c2-6e3c-491f-adb2-54bbb8aaf1ba.json and https://artists.proofprofile.net/proofs/artist/7b8cc8c2-6e3c-491f-adb2-54bbb8aaf1ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T18:27:28Z
  text: {"copyright_id":"0x6689b1ace8b92d82b2498575ae609702dd611b707f0fb74a813c85f9c790d554","name":"Facu Xavier","registered_at":"2026-06-17T08:44:32Z","symbol":"NIM1342180","token_address":"0xaff6b8ecc4ad42e3b81f458fed40618b0e0ef6e9","type":"artist","uuid":"7b8cc8c2-6e3c-491f-adb2-54bbb8aaf1ba"}
album: Al Ritmo En Todos Los Ritmos
  type: MusicAlbum
  date published: 2025-04-23
  track: Los Poderes
    type: MusicRecording
    duration: PT2M20S
    duration ms: 140615
    explicit: true
    by artist: Facu Xavier
    in album: Al Ritmo En Todos Los Ritmos
      type: MusicAlbum
      date published: 2025-04-23
    isrc code: QZNWQ2530225
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T09:15:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x883b6d8afbedad2f9ecb133b849ddcea86b1b3a72516e0c88415447cc795728a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2530225
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T09:45:25Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883b6d8afbedad2f9ecb133b849ddcea86b1b3a72516e0c88415447cc795728a. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZNWQ2530225.
      date published: 2026-07-20T09:45:25Z
    audio: Los Poderes
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 98.983
      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: 0.719
      additional property: Energy
        type: PropertyValue
        value: 0.87
      additional property: Speechiness
        type: PropertyValue
        value: 0.057
      additional property: Acousticness
        type: PropertyValue
        value: 0.167
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.097
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.836
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.795
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Voy Hacer
  type: MusicAlbum
  date published: 2025-04-30