Mad Jack
type: MusicGroup
genre: hard rock
popularity: 7
followers: 30
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x31b5d521e9aa9b7dad4b36245f999e03d9c59e7865b682f0698642954b577e52
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953875
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953875
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/077c36cf-d14c-4496-92e2-21cba6d77d23.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/077c36cf-d14c-4496-92e2-21cba6d77d23.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/077c36cf-d14c-4496-92e2-21cba6d77d23
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:12:46Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x31b5d521e9aa9b7dad4b36245f999e03d9c59e7865b682f0698642954b577e52","name":"Mad Jack","registered_at":"2026-06-15T16:22:01Z","symbol":"NIM0764108","token_address":"0x58a9371508b9fc8c38101c3115a91da37a3de1e1","type":"artist","uuid":"077c36cf-d14c-4496-92e2-21cba6d77d23"}
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 0x31b5d521e9aa9b7dad4b36245f999e03d9c59e7865b682f0698642954b577e52. Chain 2 (Bitcoin): anchored in block 953875 (2026-06-16T02:12:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/077c36cf-d14c-4496-92e2-21cba6d77d23.json and https://artists.proofprofile.net/proofs/artist/077c36cf-d14c-4496-92e2-21cba6d77d23.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:12:46Z
  text: {"copyright_id":"0x31b5d521e9aa9b7dad4b36245f999e03d9c59e7865b682f0698642954b577e52","name":"Mad Jack","registered_at":"2026-06-15T16:22:01Z","symbol":"NIM0764108","token_address":"0x58a9371508b9fc8c38101c3115a91da37a3de1e1","type":"artist","uuid":"077c36cf-d14c-4496-92e2-21cba6d77d23"}
album: Hard Rock Express
  type: MusicAlbum
  date published: 2020-04-28