Mestre Casquinha
type: MusicGroup
popularity: 5
followers: 573
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x70a50e21abd75c0962f2a2d95e35cea7234e0e42f9072bd3b3a41b22b956b7db
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954618
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954618
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c822c3a3-85f4-4e67-897b-1f73a8bd9763.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c822c3a3-85f4-4e67-897b-1f73a8bd9763.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c822c3a3-85f4-4e67-897b-1f73a8bd9763
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:05:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x70a50e21abd75c0962f2a2d95e35cea7234e0e42f9072bd3b3a41b22b956b7db","name":"Mestre Casquinha","registered_at":"2026-06-20T21:44:37Z","symbol":"NIM1723586","token_address":"0x7856395a3ccf777d627469e3786d2bf98cc7920d","type":"artist","uuid":"c822c3a3-85f4-4e67-897b-1f73a8bd9763"}
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 0x70a50e21abd75c0962f2a2d95e35cea7234e0e42f9072bd3b3a41b22b956b7db. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c822c3a3-85f4-4e67-897b-1f73a8bd9763.json and https://artists.proofprofile.net/proofs/artist/c822c3a3-85f4-4e67-897b-1f73a8bd9763.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
  text: {"copyright_id":"0x70a50e21abd75c0962f2a2d95e35cea7234e0e42f9072bd3b3a41b22b956b7db","name":"Mestre Casquinha","registered_at":"2026-06-20T21:44:37Z","symbol":"NIM1723586","token_address":"0x7856395a3ccf777d627469e3786d2bf98cc7920d","type":"artist","uuid":"c822c3a3-85f4-4e67-897b-1f73a8bd9763"}
album: Filho Meu
  type: MusicAlbum
  date published: 2019-03-04
album: Agradeco a Capoeira
  type: MusicAlbum
  date published: 2019-03-18
album: A Cancela Bateu
  type: MusicAlbum
  date published: 2019-03-18
album: Mestre Casquinha
  type: MusicAlbum
  date published: 2019-06-08
album: Filho MEU
  type: MusicAlbum
  date published: 2019-08-31
album: 358
  type: MusicAlbum
  date published: 2024-08-27