Knut Jonas Sellevold
type: MusicGroup
popularity: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x93affd38867d3bdbd646762aaaf49ab095c5b8f7bf0c513cb889b86765e8370f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953939
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953939
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/20a5d34e-bbad-46f0-8eae-00a7047ed21f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/20a5d34e-bbad-46f0-8eae-00a7047ed21f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/20a5d34e-bbad-46f0-8eae-00a7047ed21f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:40:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x93affd38867d3bdbd646762aaaf49ab095c5b8f7bf0c513cb889b86765e8370f","name":"Knut Jonas Sellevold","registered_at":"2026-06-16T01:00:19Z","symbol":"NIM0887763","token_address":"0xfda5c9dd0bfd7944bcc6a96a64b4dec2fbb4b782","type":"artist","uuid":"20a5d34e-bbad-46f0-8eae-00a7047ed21f"}
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 0x93affd38867d3bdbd646762aaaf49ab095c5b8f7bf0c513cb889b86765e8370f. Chain 2 (Bitcoin): anchored in block 953939 (2026-06-16T11:40:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/20a5d34e-bbad-46f0-8eae-00a7047ed21f.json and https://artists.proofprofile.net/proofs/artist/20a5d34e-bbad-46f0-8eae-00a7047ed21f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:40:13Z
  text: {"copyright_id":"0x93affd38867d3bdbd646762aaaf49ab095c5b8f7bf0c513cb889b86765e8370f","name":"Knut Jonas Sellevold","registered_at":"2026-06-16T01:00:19Z","symbol":"NIM0887763","token_address":"0xfda5c9dd0bfd7944bcc6a96a64b4dec2fbb4b782","type":"artist","uuid":"20a5d34e-bbad-46f0-8eae-00a7047ed21f"}