Afonso Antunes
type: MusicGroup
genre: nova mpb
popularity: 2
followers: 203
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe35d0d755e37de4d1fd8b0e72d7b0703ffe6985b25e2251f71d34b42bca8924c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953924
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953924
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1cd4554b-fdf2-44f1-a273-d18e99a61aa4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1cd4554b-fdf2-44f1-a273-d18e99a61aa4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1cd4554b-fdf2-44f1-a273-d18e99a61aa4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T09:52:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe35d0d755e37de4d1fd8b0e72d7b0703ffe6985b25e2251f71d34b42bca8924c","name":"Afonso Antunes","registered_at":"2026-06-15T23:37:33Z","symbol":"NIM0868016","token_address":"0x42066e9d837714d8b53013029e3554cce43d1e93","type":"artist","uuid":"1cd4554b-fdf2-44f1-a273-d18e99a61aa4"}
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 0xe35d0d755e37de4d1fd8b0e72d7b0703ffe6985b25e2251f71d34b42bca8924c. Chain 2 (Bitcoin): anchored in block 953924 (2026-06-16T09:52:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1cd4554b-fdf2-44f1-a273-d18e99a61aa4.json and https://artists.proofprofile.net/proofs/artist/1cd4554b-fdf2-44f1-a273-d18e99a61aa4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T09:52:28Z
  text: {"copyright_id":"0xe35d0d755e37de4d1fd8b0e72d7b0703ffe6985b25e2251f71d34b42bca8924c","name":"Afonso Antunes","registered_at":"2026-06-15T23:37:33Z","symbol":"NIM0868016","token_address":"0x42066e9d837714d8b53013029e3554cce43d1e93","type":"artist","uuid":"1cd4554b-fdf2-44f1-a273-d18e99a61aa4"}
album: Porto Alegre 12:30
  type: MusicAlbum
  date published: 2024-08-16
album: Pelas Seis
  type: MusicAlbum
  date published: 2024-09-20
album: Filho Único
  type: MusicAlbum
  date published: 2024-10-25
album: E não é mais rio
  type: MusicAlbum
  date published: 2025-10-24