A Barda
type: MusicGroup
popularity: 3
followers: 216
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4f847d99981f8d0bada9b95e2c8b82d93902ced85d84ddc26d6c2e565d5c92e8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953871
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953871
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/06cbcdac-12b3-482c-8288-6291a58b5730.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/06cbcdac-12b3-482c-8288-6291a58b5730.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/06cbcdac-12b3-482c-8288-6291a58b5730
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:46:03Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4f847d99981f8d0bada9b95e2c8b82d93902ced85d84ddc26d6c2e565d5c92e8","name":"A Barda","registered_at":"2026-06-15T15:59:16Z","symbol":"NIM0758675","token_address":"0xd8a515c64f912c9cbcc8bb28dd70ee144b409b52","type":"artist","uuid":"06cbcdac-12b3-482c-8288-6291a58b5730"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f847d99981f8d0bada9b95e2c8b82d93902ced85d84ddc26d6c2e565d5c92e8. Chain 2 (Bitcoin): anchored in block 953871 (2026-06-16T01:46:03Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/06cbcdac-12b3-482c-8288-6291a58b5730.json and https://artists.proofprofile.net/proofs/artist/06cbcdac-12b3-482c-8288-6291a58b5730.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T01:46:03Z
  text: {"copyright_id":"0x4f847d99981f8d0bada9b95e2c8b82d93902ced85d84ddc26d6c2e565d5c92e8","name":"A Barda","registered_at":"2026-06-15T15:59:16Z","symbol":"NIM0758675","token_address":"0xd8a515c64f912c9cbcc8bb28dd70ee144b409b52","type":"artist","uuid":"06cbcdac-12b3-482c-8288-6291a58b5730"}
album: Scarborough Fair
  type: MusicAlbum
  date published: 2021-11-01
album: Celtic Winds
  type: MusicAlbum
  date published: 2023-04-01