Matthias Engler
type: MusicGroup
popularity: 2
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x96e6ac130783f32dc4215ba72ea330e142d12b660d211c42ec22c6b5f6509d3a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bfd03597-7cad-4bfd-b27a-f24079ba8827.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bfd03597-7cad-4bfd-b27a-f24079ba8827.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bfd03597-7cad-4bfd-b27a-f24079ba8827
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x96e6ac130783f32dc4215ba72ea330e142d12b660d211c42ec22c6b5f6509d3a","name":"Matthias Engler","registered_at":"2026-06-20T19:08:16Z","symbol":"NIM1685816","token_address":"0xa2b61bec224b665e703115bc8f210bc4d394c36d","type":"artist","uuid":"bfd03597-7cad-4bfd-b27a-f24079ba8827"}
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 0x96e6ac130783f32dc4215ba72ea330e142d12b660d211c42ec22c6b5f6509d3a. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bfd03597-7cad-4bfd-b27a-f24079ba8827.json and https://artists.proofprofile.net/proofs/artist/bfd03597-7cad-4bfd-b27a-f24079ba8827.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x96e6ac130783f32dc4215ba72ea330e142d12b660d211c42ec22c6b5f6509d3a","name":"Matthias Engler","registered_at":"2026-06-20T19:08:16Z","symbol":"NIM1685816","token_address":"0xa2b61bec224b665e703115bc8f210bc4d394c36d","type":"artist","uuid":"bfd03597-7cad-4bfd-b27a-f24079ba8827"}
album: Feldman: For Philip Guston
  type: MusicAlbum
  date published: 2008