Jennifer Hartmann
type: MusicGroup
popularity: 14
followers: 37
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc8894029b62eee800a48c7f121661a6b9c15a346522f2eabde0c6a7e5d593f48
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953750
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953750
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a793bd34-288c-47b2-a05a-e7dfdd9c25e0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a793bd34-288c-47b2-a05a-e7dfdd9c25e0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a793bd34-288c-47b2-a05a-e7dfdd9c25e0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T06:12:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc8894029b62eee800a48c7f121661a6b9c15a346522f2eabde0c6a7e5d593f48","name":"Jennifer Hartmann","registered_at":"2026-06-14T22:04:35Z","symbol":"NIM0590421","token_address":"0x96328cee95686e5f8260e07d8ea6b86b7f5f7b80","type":"artist","uuid":"a793bd34-288c-47b2-a05a-e7dfdd9c25e0"}
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 0xc8894029b62eee800a48c7f121661a6b9c15a346522f2eabde0c6a7e5d593f48. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a793bd34-288c-47b2-a05a-e7dfdd9c25e0.json and https://artists.proofprofile.net/proofs/artist/a793bd34-288c-47b2-a05a-e7dfdd9c25e0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T06:12:23Z
  text: {"copyright_id":"0xc8894029b62eee800a48c7f121661a6b9c15a346522f2eabde0c6a7e5d593f48","name":"Jennifer Hartmann","registered_at":"2026-06-14T22:04:35Z","symbol":"NIM0590421","token_address":"0x96328cee95686e5f8260e07d8ea6b86b7f5f7b80","type":"artist","uuid":"a793bd34-288c-47b2-a05a-e7dfdd9c25e0"}
album: An Optimist's Guide to Heartbreak (ungekürzt)
  type: MusicAlbum
  date published: 2024-03-19
album: A Pessimist's Guide to Love (Roman)
  type: MusicAlbum
  date published: 2024-12-27