Liselot Fennema
type: MusicGroup
popularity: 9
followers: 32
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa612d4cd659ded7d8d38138bddcc1a8d9ff94c5949649097b216ba40bc6744d8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954020
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954020
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37f4abc0-b31c-4015-8bd1-d5ef230b0024.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37f4abc0-b31c-4015-8bd1-d5ef230b0024.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/37f4abc0-b31c-4015-8bd1-d5ef230b0024
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa612d4cd659ded7d8d38138bddcc1a8d9ff94c5949649097b216ba40bc6744d8","name":"Liselot Fennema","registered_at":"2026-06-16T09:01:34Z","symbol":"NIM1002715","token_address":"0x16cab7832690e26399b080119ebb39f4b8c54a00","type":"artist","uuid":"37f4abc0-b31c-4015-8bd1-d5ef230b0024"}
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 0xa612d4cd659ded7d8d38138bddcc1a8d9ff94c5949649097b216ba40bc6744d8. Chain 2 (Bitcoin): anchored in block 954023 (2026-06-16T23:57:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37f4abc0-b31c-4015-8bd1-d5ef230b0024.json and https://artists.proofprofile.net/proofs/artist/37f4abc0-b31c-4015-8bd1-d5ef230b0024.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T23:57:23Z
  text: {"copyright_id":"0xa612d4cd659ded7d8d38138bddcc1a8d9ff94c5949649097b216ba40bc6744d8","name":"Liselot Fennema","registered_at":"2026-06-16T09:01:34Z","symbol":"NIM1002715","token_address":"0x16cab7832690e26399b080119ebb39f4b8c54a00","type":"artist","uuid":"37f4abc0-b31c-4015-8bd1-d5ef230b0024"}