Cor Meibion Pontarddulais
type: MusicGroup
genre: choral
popularity: 2
followers: 73
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x41c2e20f3bfe1bae7cfea36d4f2a067476573acf8cda7abbf0a5b947f4f63e67
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/1d9dc723-2009-4b16-8a97-9e2219c488ca.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d9dc723-2009-4b16-8a97-9e2219c488ca.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1d9dc723-2009-4b16-8a97-9e2219c488ca
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T10:21:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x41c2e20f3bfe1bae7cfea36d4f2a067476573acf8cda7abbf0a5b947f4f63e67","name":"Cor Meibion Pontarddulais","registered_at":"2026-06-15T23:55:47Z","symbol":"NIM0872363","token_address":"0x615cfc78d92f3d0299fd1404d04e1cf71f80e181","type":"artist","uuid":"1d9dc723-2009-4b16-8a97-9e2219c488ca"}
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 0x41c2e20f3bfe1bae7cfea36d4f2a067476573acf8cda7abbf0a5b947f4f63e67. Chain 2 (Bitcoin): anchored in block 953928 (2026-06-16T10:21:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d9dc723-2009-4b16-8a97-9e2219c488ca.json and https://artists.proofprofile.net/proofs/artist/1d9dc723-2009-4b16-8a97-9e2219c488ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T10:21:55Z
  text: {"copyright_id":"0x41c2e20f3bfe1bae7cfea36d4f2a067476573acf8cda7abbf0a5b947f4f63e67","name":"Cor Meibion Pontarddulais","registered_at":"2026-06-15T23:55:47Z","symbol":"NIM0872363","token_address":"0x615cfc78d92f3d0299fd1404d04e1cf71f80e181","type":"artist","uuid":"1d9dc723-2009-4b16-8a97-9e2219c488ca"}
album: Hearts and Voices
  type: MusicAlbum
  date published: 2017-04-28