Joaquim da Silva
type: MusicGroup
popularity: 12
followers: 174
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x63e66dbb23ddc2d6175f6deac1ef3be0ab750a8ce14528108284896b6204da8f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953777
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953777
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cd3aafc3-c9e3-4fc8-8fbf-4e108071f0cf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cd3aafc3-c9e3-4fc8-8fbf-4e108071f0cf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cd3aafc3-c9e3-4fc8-8fbf-4e108071f0cf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:52:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x63e66dbb23ddc2d6175f6deac1ef3be0ab750a8ce14528108284896b6204da8f","name":"Joaquim da Silva","registered_at":"2026-06-15T02:05:28Z","symbol":"NIM0647986","token_address":"0xdab920e51ba9c2b05c466d7d9edd33744a5a4d3b","type":"artist","uuid":"cd3aafc3-c9e3-4fc8-8fbf-4e108071f0cf"}
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 0x63e66dbb23ddc2d6175f6deac1ef3be0ab750a8ce14528108284896b6204da8f. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cd3aafc3-c9e3-4fc8-8fbf-4e108071f0cf.json and https://artists.proofprofile.net/proofs/artist/cd3aafc3-c9e3-4fc8-8fbf-4e108071f0cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
  text: {"copyright_id":"0x63e66dbb23ddc2d6175f6deac1ef3be0ab750a8ce14528108284896b6204da8f","name":"Joaquim da Silva","registered_at":"2026-06-15T02:05:28Z","symbol":"NIM0647986","token_address":"0xdab920e51ba9c2b05c466d7d9edd33744a5a4d3b","type":"artist","uuid":"cd3aafc3-c9e3-4fc8-8fbf-4e108071f0cf"}
album: Lisboa Antigua
  type: MusicAlbum
  date published: 2020-06-02
album: Bad Habit
  type: MusicAlbum
  date published: 2023-01-06