Franz Kupfergold
type: MusicGroup
popularity: 19
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4b1027164c3cd4fa4942c32740e479994708c1108e7bd27996563bafff1f8629
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/d16e3eca-d305-4c63-ba04-026750f90e0e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d16e3eca-d305-4c63-ba04-026750f90e0e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d16e3eca-d305-4c63-ba04-026750f90e0e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:52:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4b1027164c3cd4fa4942c32740e479994708c1108e7bd27996563bafff1f8629","name":"Franz Kupfergold","registered_at":"2026-06-15T02:32:31Z","symbol":"NIM0654433","token_address":"0xd55a3519ba0f911a8914a56ad1e434a206cad1ad","type":"artist","uuid":"d16e3eca-d305-4c63-ba04-026750f90e0e"}
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 0x4b1027164c3cd4fa4942c32740e479994708c1108e7bd27996563bafff1f8629. 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/d16e3eca-d305-4c63-ba04-026750f90e0e.json and https://artists.proofprofile.net/proofs/artist/d16e3eca-d305-4c63-ba04-026750f90e0e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
  text: {"copyright_id":"0x4b1027164c3cd4fa4942c32740e479994708c1108e7bd27996563bafff1f8629","name":"Franz Kupfergold","registered_at":"2026-06-15T02:32:31Z","symbol":"NIM0654433","token_address":"0xd55a3519ba0f911a8914a56ad1e434a206cad1ad","type":"artist","uuid":"d16e3eca-d305-4c63-ba04-026750f90e0e"}