C.V. Pompe en Verzuipen
type: MusicGroup
popularity: 11
followers: 133
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd850ea109fa02edb745a29e4de7d9b470a2af15923e61b8ef3c6aedce8438b4d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/86becfb3-9c65-4bc1-be24-01f51a9b0d76.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/86becfb3-9c65-4bc1-be24-01f51a9b0d76.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/86becfb3-9c65-4bc1-be24-01f51a9b0d76
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:47:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd850ea109fa02edb745a29e4de7d9b470a2af15923e61b8ef3c6aedce8438b4d","name":"C.V. Pompe en Verzuipen","registered_at":"2026-06-14T18:41:38Z","symbol":"NIM0542027","token_address":"0x78ef1821bb7f09f6402053fb6d8572c28f579ce9","type":"artist","uuid":"86becfb3-9c65-4bc1-be24-01f51a9b0d76"}
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 0xd850ea109fa02edb745a29e4de7d9b470a2af15923e61b8ef3c6aedce8438b4d. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/86becfb3-9c65-4bc1-be24-01f51a9b0d76.json and https://artists.proofprofile.net/proofs/artist/86becfb3-9c65-4bc1-be24-01f51a9b0d76.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0xd850ea109fa02edb745a29e4de7d9b470a2af15923e61b8ef3c6aedce8438b4d","name":"C.V. Pompe en Verzuipen","registered_at":"2026-06-14T18:41:38Z","symbol":"NIM0542027","token_address":"0x78ef1821bb7f09f6402053fb6d8572c28f579ce9","type":"artist","uuid":"86becfb3-9c65-4bc1-be24-01f51a9b0d76"}
album: Oeteldonk Draoit Om Jou
  type: MusicAlbum
  date published: 2023-02-13