Olaf Hoorneman
type: MusicGroup
popularity: 14
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x17d3ec02c030d699c07e283f31daa67df16e382160617a7f0b89863d26eff232
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953625
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953625
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/284ed118-2550-42a4-9c00-89afdd93cb0b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/284ed118-2550-42a4-9c00-89afdd93cb0b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/284ed118-2550-42a4-9c00-89afdd93cb0b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x17d3ec02c030d699c07e283f31daa67df16e382160617a7f0b89863d26eff232","name":"Olaf Hoorneman","registered_at":"2026-06-14T08:37:10Z","symbol":"NIM0397846","token_address":"0x4907de1990c759dce1c4af2190386bc5d621ee4b","type":"artist","uuid":"284ed118-2550-42a4-9c00-89afdd93cb0b"}
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 0x17d3ec02c030d699c07e283f31daa67df16e382160617a7f0b89863d26eff232. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/284ed118-2550-42a4-9c00-89afdd93cb0b.json and https://artists.proofprofile.net/proofs/artist/284ed118-2550-42a4-9c00-89afdd93cb0b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:41:45Z
  text: {"copyright_id":"0x17d3ec02c030d699c07e283f31daa67df16e382160617a7f0b89863d26eff232","name":"Olaf Hoorneman","registered_at":"2026-06-14T08:37:10Z","symbol":"NIM0397846","token_address":"0x4907de1990c759dce1c4af2190386bc5d621ee4b","type":"artist","uuid":"284ed118-2550-42a4-9c00-89afdd93cb0b"}