João do Pifi
type: MusicGroup
genre: forró
genre: forro tradicional
popularity: 11
followers: 409
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x050407f3e77332eb0622bc068f52a504807b2d803a2b9826dbf821f0af1d7b34
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953807
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953807
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f3ef01b5-efc5-4ddc-bf1e-759931fb7dcf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f3ef01b5-efc5-4ddc-bf1e-759931fb7dcf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f3ef01b5-efc5-4ddc-bf1e-759931fb7dcf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T16:39:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x050407f3e77332eb0622bc068f52a504807b2d803a2b9826dbf821f0af1d7b34","name":"João do Pifi","registered_at":"2026-06-15T06:07:42Z","symbol":"NIM0705802","token_address":"0x42bbeceaff3fda0da0e91d17f1b4aa1e1e14d44c","type":"artist","uuid":"f3ef01b5-efc5-4ddc-bf1e-759931fb7dcf"}
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 0x050407f3e77332eb0622bc068f52a504807b2d803a2b9826dbf821f0af1d7b34. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f3ef01b5-efc5-4ddc-bf1e-759931fb7dcf.json and https://artists.proofprofile.net/proofs/artist/f3ef01b5-efc5-4ddc-bf1e-759931fb7dcf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T16:39:18Z
  text: {"copyright_id":"0x050407f3e77332eb0622bc068f52a504807b2d803a2b9826dbf821f0af1d7b34","name":"João do Pifi","registered_at":"2026-06-15T06:07:42Z","symbol":"NIM0705802","token_address":"0x42bbeceaff3fda0da0e91d17f1b4aa1e1e14d44c","type":"artist","uuid":"f3ef01b5-efc5-4ddc-bf1e-759931fb7dcf"}
album: Folclore Alagoano
  type: MusicAlbum
  date published: 2021-07-13
album: O Rei do Pife
  type: MusicAlbum
  date published: 2021-07-13
album: Solista de Pífaro
  type: MusicAlbum
  date published: 2021-07-13
album: Guerreiro Alagoano
  type: MusicAlbum
  date published: 2021-07-13
album: E seu Conjunto
  type: MusicAlbum
  date published: 2021-07-13
album: Prato Feito
  type: MusicAlbum
  date published: 2021-07-13
album: Santo Antonio Casador
  type: MusicAlbum
  date published: 2021-07-13
album: Pífano no Forró
  type: MusicAlbum
  date published: 2021-07-13
album: João do Pífaro no Sertão
  type: MusicAlbum
  date published: 2021-07-13