Jochen Langner
type: MusicGroup
popularity: 43
followers: 77
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x847c4db5769355ab777d9d97d1ce4479815bd7d98fb8d1b4bfe1106657e12b65
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b61240a9-e380-4281-820b-2caf76c9c9cf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b61240a9-e380-4281-820b-2caf76c9c9cf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b61240a9-e380-4281-820b-2caf76c9c9cf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x847c4db5769355ab777d9d97d1ce4479815bd7d98fb8d1b4bfe1106657e12b65","name":"Jochen Langner","registered_at":"2026-06-12T07:52:26Z","symbol":"NIM0233858","token_address":"0xe3464b2079c738fa835b8ec8bd95b4ee4c768688","type":"artist","uuid":"b61240a9-e380-4281-820b-2caf76c9c9cf"}
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 0x847c4db5769355ab777d9d97d1ce4479815bd7d98fb8d1b4bfe1106657e12b65. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b61240a9-e380-4281-820b-2caf76c9c9cf.json and https://artists.proofprofile.net/proofs/artist/b61240a9-e380-4281-820b-2caf76c9c9cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x847c4db5769355ab777d9d97d1ce4479815bd7d98fb8d1b4bfe1106657e12b65","name":"Jochen Langner","registered_at":"2026-06-12T07:52:26Z","symbol":"NIM0233858","token_address":"0xe3464b2079c738fa835b8ec8bd95b4ee4c768688","type":"artist","uuid":"b61240a9-e380-4281-820b-2caf76c9c9cf"}