Karl Hoffmann
type: MusicGroup
popularity: 34
followers: 186
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc1aa514f9faa16d42622aace472772dab7217228bd256c1922b3dae91ce01a56
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/bab5ed8a-87be-41a8-9d3a-04cfd99fb615.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bab5ed8a-87be-41a8-9d3a-04cfd99fb615.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bab5ed8a-87be-41a8-9d3a-04cfd99fb615
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc1aa514f9faa16d42622aace472772dab7217228bd256c1922b3dae91ce01a56","name":"Karl Hoffmann","registered_at":"2026-06-12T08:23:29Z","symbol":"NIM0241075","token_address":"0x393ed479aa32fd5c82e5bd9a9b5581956aba45e6","type":"artist","uuid":"bab5ed8a-87be-41a8-9d3a-04cfd99fb615"}
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 0xc1aa514f9faa16d42622aace472772dab7217228bd256c1922b3dae91ce01a56. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bab5ed8a-87be-41a8-9d3a-04cfd99fb615.json and https://artists.proofprofile.net/proofs/artist/bab5ed8a-87be-41a8-9d3a-04cfd99fb615.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xc1aa514f9faa16d42622aace472772dab7217228bd256c1922b3dae91ce01a56","name":"Karl Hoffmann","registered_at":"2026-06-12T08:23:29Z","symbol":"NIM0241075","token_address":"0x393ed479aa32fd5c82e5bd9a9b5581956aba45e6","type":"artist","uuid":"bab5ed8a-87be-41a8-9d3a-04cfd99fb615"}
album: Rust & Rose
  type: MusicAlbum
  date published: 2024-09-13
album: Nap On The Neck
  type: MusicAlbum
  date published: 2025-06-04