Patrick Duncan
type: MusicGroup
description: Patrick Duncan may refer to: Sir Patrick Duncan (South African politician) (1870–1943), Governor-General of South Africa Patrick Sheane Duncan (born 1947), American writer, film producer and directo
popularity: 2
followers: 28
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x731e9d3610ff65aea6a3663267cec0a89c05a5e97273e7fe4f4574fadfb8d359
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953991
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953991
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2ec348a6-d655-4efd-b5a5-e80f7f54f5a3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2ec348a6-d655-4efd-b5a5-e80f7f54f5a3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2ec348a6-d655-4efd-b5a5-e80f7f54f5a3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T18:47:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x731e9d3610ff65aea6a3663267cec0a89c05a5e97273e7fe4f4574fadfb8d359","name":"Patrick Duncan","registered_at":"2026-06-16T05:51:41Z","symbol":"NIM0957378","token_address":"0x70b7093afc423120e23e35f369b145e3970d8a8f","type":"artist","uuid":"2ec348a6-d655-4efd-b5a5-e80f7f54f5a3"}
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 0x731e9d3610ff65aea6a3663267cec0a89c05a5e97273e7fe4f4574fadfb8d359. Chain 2 (Bitcoin): anchored in block 953991 (2026-06-16T18:47:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ec348a6-d655-4efd-b5a5-e80f7f54f5a3.json and https://artists.proofprofile.net/proofs/artist/2ec348a6-d655-4efd-b5a5-e80f7f54f5a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T18:47:23Z
  text: {"copyright_id":"0x731e9d3610ff65aea6a3663267cec0a89c05a5e97273e7fe4f4574fadfb8d359","name":"Patrick Duncan","registered_at":"2026-06-16T05:51:41Z","symbol":"NIM0957378","token_address":"0x70b7093afc423120e23e35f369b145e3970d8a8f","type":"artist","uuid":"2ec348a6-d655-4efd-b5a5-e80f7f54f5a3"}