Pedro Ferreira
type: MusicGroup
genre: nova mpb
popularity: 2
followers: 410
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6f8d120f6af456c882ac363c6b5d1271017d968d4367d008479ba3bdacf67878
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954014
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954014
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2901d958-305d-4dc2-873d-a5d53f90f6fe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2901d958-305d-4dc2-873d-a5d53f90f6fe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2901d958-305d-4dc2-873d-a5d53f90f6fe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T22:46:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6f8d120f6af456c882ac363c6b5d1271017d968d4367d008479ba3bdacf67878","name":"Pedro Ferreira","registered_at":"2026-06-16T03:53:17Z","symbol":"NIM0929080","token_address":"0xef754247c39eb9437b07983b513ea35658ebbe88","type":"artist","uuid":"2901d958-305d-4dc2-873d-a5d53f90f6fe"}
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 0x6f8d120f6af456c882ac363c6b5d1271017d968d4367d008479ba3bdacf67878. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2901d958-305d-4dc2-873d-a5d53f90f6fe.json and https://artists.proofprofile.net/proofs/artist/2901d958-305d-4dc2-873d-a5d53f90f6fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0x6f8d120f6af456c882ac363c6b5d1271017d968d4367d008479ba3bdacf67878","name":"Pedro Ferreira","registered_at":"2026-06-16T03:53:17Z","symbol":"NIM0929080","token_address":"0xef754247c39eb9437b07983b513ea35658ebbe88","type":"artist","uuid":"2901d958-305d-4dc2-873d-a5d53f90f6fe"}
album: Ária Noturna
  type: MusicAlbum
  date published: 2018-11-30
album: Ele Era Eu
  type: MusicAlbum
  date published: 2020-03-26
album: Todo Carinho
  type: MusicAlbum
  date published: 2021-01-11
album: Ele Era Eu
  type: MusicAlbum
  date published: 2021-03-12