Gem Archer
type: MusicGroup
description: Colin Murray "Gem" Archer ( ; born 7 December 1966) is an English guitarist, singer and songwriter. He is best known as a member of the rock band Oasis, where he plays rhythm and lead guitar. He has a
popularity: 4
followers: 233
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xac5d84a89079a620eb6e65e047ed128b82f60442d06a00a3d5b16bf051672c74
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/af36420f-9557-42cd-bfa6-6731789cfa70.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/af36420f-9557-42cd-bfa6-6731789cfa70.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/af36420f-9557-42cd-bfa6-6731789cfa70
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xac5d84a89079a620eb6e65e047ed128b82f60442d06a00a3d5b16bf051672c74","name":"Gem Archer","registered_at":"2026-06-20T11:53:18Z","symbol":"NIM1605604","token_address":"0xa95d9e5548bb385a5117bae49c77b3228b99d346","type":"artist","uuid":"af36420f-9557-42cd-bfa6-6731789cfa70"}
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 0xac5d84a89079a620eb6e65e047ed128b82f60442d06a00a3d5b16bf051672c74. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/af36420f-9557-42cd-bfa6-6731789cfa70.json and https://artists.proofprofile.net/proofs/artist/af36420f-9557-42cd-bfa6-6731789cfa70.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xac5d84a89079a620eb6e65e047ed128b82f60442d06a00a3d5b16bf051672c74","name":"Gem Archer","registered_at":"2026-06-20T11:53:18Z","symbol":"NIM1605604","token_address":"0xa95d9e5548bb385a5117bae49c77b3228b99d346","type":"artist","uuid":"af36420f-9557-42cd-bfa6-6731789cfa70"}