Marie Kavli
type: MusicGroup
popularity: 15
followers: 48
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x62a22884759fbd4fc6efe5464e4fc1ce0684e668209e26d80a347dd9be0e2473
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953610
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953610
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/12f9e411-736c-403d-8d12-2a2061aa03c2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/12f9e411-736c-403d-8d12-2a2061aa03c2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/12f9e411-736c-403d-8d12-2a2061aa03c2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T07:58:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x62a22884759fbd4fc6efe5464e4fc1ce0684e668209e26d80a347dd9be0e2473","name":"Marie Kavli","registered_at":"2026-06-14T06:29:07Z","symbol":"NIM0367294","token_address":"0x4ef3cec01de8ef3ceef800b7582b97a2621a18a0","type":"artist","uuid":"12f9e411-736c-403d-8d12-2a2061aa03c2"}
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 0x62a22884759fbd4fc6efe5464e4fc1ce0684e668209e26d80a347dd9be0e2473. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/12f9e411-736c-403d-8d12-2a2061aa03c2.json and https://artists.proofprofile.net/proofs/artist/12f9e411-736c-403d-8d12-2a2061aa03c2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T07:58:09Z
  text: {"copyright_id":"0x62a22884759fbd4fc6efe5464e4fc1ce0684e668209e26d80a347dd9be0e2473","name":"Marie Kavli","registered_at":"2026-06-14T06:29:07Z","symbol":"NIM0367294","token_address":"0x4ef3cec01de8ef3ceef800b7582b97a2621a18a0","type":"artist","uuid":"12f9e411-736c-403d-8d12-2a2061aa03c2"}