Betuwse Mannenkoren
type: MusicGroup
popularity: 8
followers: 247
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfa94427d80d7779201c169fff43edec7f8afe5cea5ee88b852520e3025830f43
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/90b001cb-4764-4699-b505-0dfefdad4592.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/90b001cb-4764-4699-b505-0dfefdad4592.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/90b001cb-4764-4699-b505-0dfefdad4592
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfa94427d80d7779201c169fff43edec7f8afe5cea5ee88b852520e3025830f43","name":"Betuwse Mannenkoren","registered_at":"2026-06-17T16:09:46Z","symbol":"NIM1448329","token_address":"0x8690bae4e891688662c63124e9cf2c524a51c0a1","type":"artist","uuid":"90b001cb-4764-4699-b505-0dfefdad4592"}
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 0xfa94427d80d7779201c169fff43edec7f8afe5cea5ee88b852520e3025830f43. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90b001cb-4764-4699-b505-0dfefdad4592.json and https://artists.proofprofile.net/proofs/artist/90b001cb-4764-4699-b505-0dfefdad4592.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xfa94427d80d7779201c169fff43edec7f8afe5cea5ee88b852520e3025830f43","name":"Betuwse Mannenkoren","registered_at":"2026-06-17T16:09:46Z","symbol":"NIM1448329","token_address":"0x8690bae4e891688662c63124e9cf2c524a51c0a1","type":"artist","uuid":"90b001cb-4764-4699-b505-0dfefdad4592"}
album: 5e Betuwse Mannenzang: Niet ritmische psalmzang met bovenstem
  type: MusicAlbum
  date published: 2014