Toinho do Rojão
type: MusicGroup
genre: forró
genre: forró tradicional
popularity: 3
followers: 148
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xefc88a09c3fcf9dd61292d7e2a96b3fed8bb93685ac3b43260c223e6d5bf1a60
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954573
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954573
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b4ec0499-e1e9-4a71-a230-d7c7c2affc15.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b4ec0499-e1e9-4a71-a230-d7c7c2affc15.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b4ec0499-e1e9-4a71-a230-d7c7c2affc15
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T15:45:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xefc88a09c3fcf9dd61292d7e2a96b3fed8bb93685ac3b43260c223e6d5bf1a60","name":"Toinho do Rojão","registered_at":"2026-06-20T14:16:24Z","symbol":"NIM1629984","token_address":"0xfbe709065b57a0def8fc05b26d43ff9db0173008","type":"artist","uuid":"b4ec0499-e1e9-4a71-a230-d7c7c2affc15"}
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 0xefc88a09c3fcf9dd61292d7e2a96b3fed8bb93685ac3b43260c223e6d5bf1a60. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b4ec0499-e1e9-4a71-a230-d7c7c2affc15.json and https://artists.proofprofile.net/proofs/artist/b4ec0499-e1e9-4a71-a230-d7c7c2affc15.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T15:45:29Z
  text: {"copyright_id":"0xefc88a09c3fcf9dd61292d7e2a96b3fed8bb93685ac3b43260c223e6d5bf1a60","name":"Toinho do Rojão","registered_at":"2026-06-20T14:16:24Z","symbol":"NIM1629984","token_address":"0xfbe709065b57a0def8fc05b26d43ff9db0173008","type":"artist","uuid":"b4ec0499-e1e9-4a71-a230-d7c7c2affc15"}
album: Eu Nunca Vi Umbu Ser Tão Azedo
  type: MusicAlbum
  date published: 1982-05-30
album: Prévia do CD
  type: MusicAlbum
  date published: 2021-11-26