Lleucu Gwawr
type: MusicGroup
popularity: 2
followers: 100
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdc930aed91b8494d7c5133ea16e58b39f166d0495156b2c83b95aae9ac13b41d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/90e5abd9-1a47-4383-bb39-6d9813a5f468.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/90e5abd9-1a47-4383-bb39-6d9813a5f468.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/90e5abd9-1a47-4383-bb39-6d9813a5f468
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdc930aed91b8494d7c5133ea16e58b39f166d0495156b2c83b95aae9ac13b41d","name":"Lleucu Gwawr","registered_at":"2026-06-17T15:58:42Z","symbol":"NIM1445685","token_address":"0x17b99cc979ac7a9c41e4eed16d37f1ac167b3085","type":"artist","uuid":"90e5abd9-1a47-4383-bb39-6d9813a5f468"}
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 0xdc930aed91b8494d7c5133ea16e58b39f166d0495156b2c83b95aae9ac13b41d. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90e5abd9-1a47-4383-bb39-6d9813a5f468.json and https://artists.proofprofile.net/proofs/artist/90e5abd9-1a47-4383-bb39-6d9813a5f468.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xdc930aed91b8494d7c5133ea16e58b39f166d0495156b2c83b95aae9ac13b41d","name":"Lleucu Gwawr","registered_at":"2026-06-17T15:58:42Z","symbol":"NIM1445685","token_address":"0x17b99cc979ac7a9c41e4eed16d37f1ac167b3085","type":"artist","uuid":"90e5abd9-1a47-4383-bb39-6d9813a5f468"}
album: Hen Blant Bach/Byw i'r Funud
  type: MusicAlbum
  date published: 2024-06-07