Iain Cook
type: MusicGroup
description: Iain Andrew Cook (born 2 November 1974) is a Scottish musician, composer, record producer, and member of Glasgow-based pop band Chvrches. He played guitar for the Scottish post-rock band Aereogramme u
popularity: 26
followers: 237
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb6728ebd43868ef889a3412bf612f19e5315716933cd4afcd3829ac8968f8cc6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0ec94d12-5908-4380-98b6-c66fade9f2e8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0ec94d12-5908-4380-98b6-c66fade9f2e8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0ec94d12-5908-4380-98b6-c66fade9f2e8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb6728ebd43868ef889a3412bf612f19e5315716933cd4afcd3829ac8968f8cc6","name":"Iain Cook","registered_at":"2026-06-11T11:55:11Z","symbol":"NIM0020397","token_address":"0x5432cec584de9b5dcff1f82a197d1e87bb0d9eb1","type":"artist","uuid":"0ec94d12-5908-4380-98b6-c66fade9f2e8"}
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 0xb6728ebd43868ef889a3412bf612f19e5315716933cd4afcd3829ac8968f8cc6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ec94d12-5908-4380-98b6-c66fade9f2e8.json and https://artists.proofprofile.net/proofs/artist/0ec94d12-5908-4380-98b6-c66fade9f2e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xb6728ebd43868ef889a3412bf612f19e5315716933cd4afcd3829ac8968f8cc6","name":"Iain Cook","registered_at":"2026-06-11T11:55:11Z","symbol":"NIM0020397","token_address":"0x5432cec584de9b5dcff1f82a197d1e87bb0d9eb1","type":"artist","uuid":"0ec94d12-5908-4380-98b6-c66fade9f2e8"}