Paul Marchand
type: MusicGroup
description: Paul Marchard (April 17, 1937 – July 24, 2011) was the Roman Catholic bishop of the Roman Catholic Diocese of Timmins, Canada. Marchand was born in Lafontaine, Ontario and grew up in the area near Ge
popularity: 3
followers: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x987e068f976a30f7a25bfcd81775108635afec9c8e5cbc0bbe82a4080e7253bc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953889
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0d7857d7-2d79-4964-8eb9-6a0d2e326303.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0d7857d7-2d79-4964-8eb9-6a0d2e326303.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0d7857d7-2d79-4964-8eb9-6a0d2e326303
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T04:57:45Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x987e068f976a30f7a25bfcd81775108635afec9c8e5cbc0bbe82a4080e7253bc","name":"Paul Marchand","registered_at":"2026-06-15T18:14:02Z","symbol":"NIM0790836","token_address":"0x4804a6db3b35998745d859134372fa98af6d2f66","type":"artist","uuid":"0d7857d7-2d79-4964-8eb9-6a0d2e326303"}
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 0x987e068f976a30f7a25bfcd81775108635afec9c8e5cbc0bbe82a4080e7253bc. Chain 2 (Bitcoin): anchored in block 953889 (2026-06-16T04:57:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d7857d7-2d79-4964-8eb9-6a0d2e326303.json and https://artists.proofprofile.net/proofs/artist/0d7857d7-2d79-4964-8eb9-6a0d2e326303.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T04:57:45Z
  text: {"copyright_id":"0x987e068f976a30f7a25bfcd81775108635afec9c8e5cbc0bbe82a4080e7253bc","name":"Paul Marchand","registered_at":"2026-06-15T18:14:02Z","symbol":"NIM0790836","token_address":"0x4804a6db3b35998745d859134372fa98af6d2f66","type":"artist","uuid":"0d7857d7-2d79-4964-8eb9-6a0d2e326303"}