Loes Visser
type: MusicGroup
popularity: 2
followers: 10
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdc4fd7d439ac617c5cd21be935a196223ccefdc705a5b7f22a7ea8ae572e9038
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953877
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953877
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/07df4a61-8799-48e6-b9bf-1fb7e7346948.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/07df4a61-8799-48e6-b9bf-1fb7e7346948.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/07df4a61-8799-48e6-b9bf-1fb7e7346948
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:39:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdc4fd7d439ac617c5cd21be935a196223ccefdc705a5b7f22a7ea8ae572e9038","name":"Loes Visser","registered_at":"2026-06-15T16:09:37Z","symbol":"NIM0761145","token_address":"0x859a9ca1d44fadd2b9af6b9b6f093d6bc12aeef3","type":"artist","uuid":"07df4a61-8799-48e6-b9bf-1fb7e7346948"}
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 0xdc4fd7d439ac617c5cd21be935a196223ccefdc705a5b7f22a7ea8ae572e9038. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07df4a61-8799-48e6-b9bf-1fb7e7346948.json and https://artists.proofprofile.net/proofs/artist/07df4a61-8799-48e6-b9bf-1fb7e7346948.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0xdc4fd7d439ac617c5cd21be935a196223ccefdc705a5b7f22a7ea8ae572e9038","name":"Loes Visser","registered_at":"2026-06-15T16:09:37Z","symbol":"NIM0761145","token_address":"0x859a9ca1d44fadd2b9af6b9b6f093d6bc12aeef3","type":"artist","uuid":"07df4a61-8799-48e6-b9bf-1fb7e7346948"}