Porter Barnard
type: MusicGroup
popularity: 13
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc73ac5be3931615e01c4db5c1e93683c0ba20054e0a49957cd63f3c6909e8a23
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953699
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953699
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/73e60094-fd0c-48b2-ba1f-1ba97c2f12f3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/73e60094-fd0c-48b2-ba1f-1ba97c2f12f3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/73e60094-fd0c-48b2-ba1f-1ba97c2f12f3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:00:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc73ac5be3931615e01c4db5c1e93683c0ba20054e0a49957cd63f3c6909e8a23","name":"Porter Barnard","registered_at":"2026-06-14T16:40:26Z","symbol":"NIM0513154","token_address":"0xae7ddec93a3c065e4ce2a5d54b0bf3bdd0afdf02","type":"artist","uuid":"73e60094-fd0c-48b2-ba1f-1ba97c2f12f3"}
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 0xc73ac5be3931615e01c4db5c1e93683c0ba20054e0a49957cd63f3c6909e8a23. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/73e60094-fd0c-48b2-ba1f-1ba97c2f12f3.json and https://artists.proofprofile.net/proofs/artist/73e60094-fd0c-48b2-ba1f-1ba97c2f12f3.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T22:00:24Z
  text: {"copyright_id":"0xc73ac5be3931615e01c4db5c1e93683c0ba20054e0a49957cd63f3c6909e8a23","name":"Porter Barnard","registered_at":"2026-06-14T16:40:26Z","symbol":"NIM0513154","token_address":"0xae7ddec93a3c065e4ce2a5d54b0bf3bdd0afdf02","type":"artist","uuid":"73e60094-fd0c-48b2-ba1f-1ba97c2f12f3"}
album: Mill 4 Meals
  type: MusicAlbum
  date published: 2024-08-27