Leonardo Breanza
type: MusicGroup
popularity: 2
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcae495abffa4df948a635bbbf8ca2d58687dee772c0d09da040aebd74cf0a3aa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954139
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954139
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8051e96a-15c4-4486-9673-4fd648f628bf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8051e96a-15c4-4486-9673-4fd648f628bf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8051e96a-15c4-4486-9673-4fd648f628bf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T21:12:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcae495abffa4df948a635bbbf8ca2d58687dee772c0d09da040aebd74cf0a3aa","name":"Leonardo Breanza","registered_at":"2026-06-17T10:13:55Z","symbol":"NIM1363512","token_address":"0x264b9197fff03ca5664460cb3018663a24fe3db7","type":"artist","uuid":"8051e96a-15c4-4486-9673-4fd648f628bf"}
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 0xcae495abffa4df948a635bbbf8ca2d58687dee772c0d09da040aebd74cf0a3aa. Chain 2 (Bitcoin): anchored in block 954141 (2026-06-17T21:14:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8051e96a-15c4-4486-9673-4fd648f628bf.json and https://artists.proofprofile.net/proofs/artist/8051e96a-15c4-4486-9673-4fd648f628bf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T21:14:35Z
  text: {"copyright_id":"0xcae495abffa4df948a635bbbf8ca2d58687dee772c0d09da040aebd74cf0a3aa","name":"Leonardo Breanza","registered_at":"2026-06-17T10:13:55Z","symbol":"NIM1363512","token_address":"0x264b9197fff03ca5664460cb3018663a24fe3db7","type":"artist","uuid":"8051e96a-15c4-4486-9673-4fd648f628bf"}
album: All That She Wants (Is Another Baby)
  type: MusicAlbum
  date published: 2017-05-26