Dan Gibson
type: MusicGroup
description: Dan Gibson (January 19, 1922 in Montreal – March 18, 2006 in Toronto) was a Canadian photographer, cinematographer and sound recordist. Career During the late 1940s, Dan Gibson took photographs and m
popularity: 4
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5ac4e8827fbb67eff1269dfaa0d88123e5c9ee112fbc64d3feb5a464e001d460
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c4377a12-17d8-4f17-a600-9e3ab2a160d4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c4377a12-17d8-4f17-a600-9e3ab2a160d4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c4377a12-17d8-4f17-a600-9e3ab2a160d4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5ac4e8827fbb67eff1269dfaa0d88123e5c9ee112fbc64d3feb5a464e001d460","name":"Dan Gibson","registered_at":"2026-06-20T20:19:18Z","symbol":"NIM1704317","token_address":"0xadcb4f239e68bf5ff8df626e9b2b97902da2a8b9","type":"artist","uuid":"c4377a12-17d8-4f17-a600-9e3ab2a160d4"}
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 0x5ac4e8827fbb67eff1269dfaa0d88123e5c9ee112fbc64d3feb5a464e001d460. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4377a12-17d8-4f17-a600-9e3ab2a160d4.json and https://artists.proofprofile.net/proofs/artist/c4377a12-17d8-4f17-a600-9e3ab2a160d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x5ac4e8827fbb67eff1269dfaa0d88123e5c9ee112fbc64d3feb5a464e001d460","name":"Dan Gibson","registered_at":"2026-06-20T20:19:18Z","symbol":"NIM1704317","token_address":"0xadcb4f239e68bf5ff8df626e9b2b97902da2a8b9","type":"artist","uuid":"c4377a12-17d8-4f17-a600-9e3ab2a160d4"}