Brian Free
type: MusicGroup
popularity: 2
followers: 110
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x950cdbe57302955cfeaeb9f7d74d86089a608a7512c3ae57175c17ba35f64799
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954046
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954046
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41396606-3425-4ae1-b210-3a3f43264d83.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41396606-3425-4ae1-b210-3a3f43264d83.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/41396606-3425-4ae1-b210-3a3f43264d83
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:53:03Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x950cdbe57302955cfeaeb9f7d74d86089a608a7512c3ae57175c17ba35f64799","name":"Brian Free","registered_at":"2026-06-16T12:17:36Z","symbol":"NIM1049474","token_address":"0xa87e8930033374fc990929a70baef9416d49350f","type":"artist","uuid":"41396606-3425-4ae1-b210-3a3f43264d83"}
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 0x950cdbe57302955cfeaeb9f7d74d86089a608a7512c3ae57175c17ba35f64799. Chain 2 (Bitcoin): anchored in block 954046 (2026-06-17T04:53:03Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41396606-3425-4ae1-b210-3a3f43264d83.json and https://artists.proofprofile.net/proofs/artist/41396606-3425-4ae1-b210-3a3f43264d83.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T04:53:03Z
  text: {"copyright_id":"0x950cdbe57302955cfeaeb9f7d74d86089a608a7512c3ae57175c17ba35f64799","name":"Brian Free","registered_at":"2026-06-16T12:17:36Z","symbol":"NIM1049474","token_address":"0xa87e8930033374fc990929a70baef9416d49350f","type":"artist","uuid":"41396606-3425-4ae1-b210-3a3f43264d83"}
album: Creo que lo vi
  type: MusicAlbum
  date published: 2022-06-24
album: Na` que perder
  type: MusicAlbum
  date published: 2022-09-26
album: Igual que antes
  type: MusicAlbum
  date published: 2023-02-01
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  type: MusicAlbum
  date published: 2023-07-24
album: Salimos del Barrio
  type: MusicAlbum
  date published: 2023-11-16
album: DOMO
  type: MusicAlbum
  date published: 2025-01-16