Jack Gravina
type: MusicGroup
popularity: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xab720414f21bbeae115c5c93751f388995689ea806f504f2c98fef0672867c46
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b86db090-8f44-4d9d-b92a-284d8024373b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b86db090-8f44-4d9d-b92a-284d8024373b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b86db090-8f44-4d9d-b92a-284d8024373b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xab720414f21bbeae115c5c93751f388995689ea806f504f2c98fef0672867c46","name":"Jack Gravina","registered_at":"2026-06-20T15:33:55Z","symbol":"NIM1646214","token_address":"0xd75eb08fb62ced914ac0cd941bfb0b476fc386e9","type":"artist","uuid":"b86db090-8f44-4d9d-b92a-284d8024373b"}
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 0xab720414f21bbeae115c5c93751f388995689ea806f504f2c98fef0672867c46. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b86db090-8f44-4d9d-b92a-284d8024373b.json and https://artists.proofprofile.net/proofs/artist/b86db090-8f44-4d9d-b92a-284d8024373b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:15:05Z
  text: {"copyright_id":"0xab720414f21bbeae115c5c93751f388995689ea806f504f2c98fef0672867c46","name":"Jack Gravina","registered_at":"2026-06-20T15:33:55Z","symbol":"NIM1646214","token_address":"0xd75eb08fb62ced914ac0cd941bfb0b476fc386e9","type":"artist","uuid":"b86db090-8f44-4d9d-b92a-284d8024373b"}