Jean-Marc Birkholz
type: MusicGroup
popularity: 17
followers: 54
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x95c57ce97ccb586859ce51279311b1a6af0f8923d56571a54888afe211a03026
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953618
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953618
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d4cf7d0-5a49-4e09-bd62-d8a0f889d362.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d4cf7d0-5a49-4e09-bd62-d8a0f889d362.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1d4cf7d0-5a49-4e09-bd62-d8a0f889d362
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T09:16:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x95c57ce97ccb586859ce51279311b1a6af0f8923d56571a54888afe211a03026","name":"Jean-Marc Birkholz","registered_at":"2026-06-14T07:27:58Z","symbol":"NIM0381353","token_address":"0x49cfffb52559f18c1b3ed446fa801601b1ed5a4d","type":"artist","uuid":"1d4cf7d0-5a49-4e09-bd62-d8a0f889d362"}
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 0x95c57ce97ccb586859ce51279311b1a6af0f8923d56571a54888afe211a03026. Chain 2 (Bitcoin): anchored in block 953618 (2026-06-14T09:16:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d4cf7d0-5a49-4e09-bd62-d8a0f889d362.json and https://artists.proofprofile.net/proofs/artist/1d4cf7d0-5a49-4e09-bd62-d8a0f889d362.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T09:16:10Z
  text: {"copyright_id":"0x95c57ce97ccb586859ce51279311b1a6af0f8923d56571a54888afe211a03026","name":"Jean-Marc Birkholz","registered_at":"2026-06-14T07:27:58Z","symbol":"NIM0381353","token_address":"0x49cfffb52559f18c1b3ed446fa801601b1ed5a4d","type":"artist","uuid":"1d4cf7d0-5a49-4e09-bd62-d8a0f889d362"}
album: Von hier an
  type: MusicAlbum
  date published: 2024-12-05