Floor Krijnen
type: MusicGroup
popularity: 20
followers: 9
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x07db2474d686480c44a1962671264d1253d5f0bdbf35313796183d657c18c46e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3e882214-a53b-4f86-89b8-45dd375e4acd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3e882214-a53b-4f86-89b8-45dd375e4acd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3e882214-a53b-4f86-89b8-45dd375e4acd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x07db2474d686480c44a1962671264d1253d5f0bdbf35313796183d657c18c46e","name":"Floor Krijnen","registered_at":"2026-06-14T11:02:30Z","symbol":"NIM0432514","token_address":"0x46fd3193a3459d73fa5edd7db6ae4f0468af009f","type":"artist","uuid":"3e882214-a53b-4f86-89b8-45dd375e4acd"}
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 0x07db2474d686480c44a1962671264d1253d5f0bdbf35313796183d657c18c46e. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e882214-a53b-4f86-89b8-45dd375e4acd.json and https://artists.proofprofile.net/proofs/artist/3e882214-a53b-4f86-89b8-45dd375e4acd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0x07db2474d686480c44a1962671264d1253d5f0bdbf35313796183d657c18c46e","name":"Floor Krijnen","registered_at":"2026-06-14T11:02:30Z","symbol":"NIM0432514","token_address":"0x46fd3193a3459d73fa5edd7db6ae4f0468af009f","type":"artist","uuid":"3e882214-a53b-4f86-89b8-45dd375e4acd"}