Sander van Wissen
type: MusicGroup
popularity: 2
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa6a4c3e8239018f954be18ef341e8924ead4aeb350f458d58f55e071ca8add99
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953928
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953928
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1db871ef-e6a7-4539-ba25-816eeac4e112.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1db871ef-e6a7-4539-ba25-816eeac4e112.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1db871ef-e6a7-4539-ba25-816eeac4e112
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T10:21:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa6a4c3e8239018f954be18ef341e8924ead4aeb350f458d58f55e071ca8add99","name":"Sander van Wissen","registered_at":"2026-06-15T23:55:57Z","symbol":"NIM0872401","token_address":"0x183d90cabb71add7841b246246166938a6c8bb48","type":"artist","uuid":"1db871ef-e6a7-4539-ba25-816eeac4e112"}
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 0xa6a4c3e8239018f954be18ef341e8924ead4aeb350f458d58f55e071ca8add99. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1db871ef-e6a7-4539-ba25-816eeac4e112.json and https://artists.proofprofile.net/proofs/artist/1db871ef-e6a7-4539-ba25-816eeac4e112.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0xa6a4c3e8239018f954be18ef341e8924ead4aeb350f458d58f55e071ca8add99","name":"Sander van Wissen","registered_at":"2026-06-15T23:55:57Z","symbol":"NIM0872401","token_address":"0x183d90cabb71add7841b246246166938a6c8bb48","type":"artist","uuid":"1db871ef-e6a7-4539-ba25-816eeac4e112"}