Martin Roberts
type: MusicGroup
description: Martin Roberts may refer to: Martin Roberts (designer) (born 1943), British retail design expert, author and lecturer Martin Roberts (rugby union, born 1968) (1968–2016), English rugby union player
popularity: 2
followers: 344
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe7c91054681ca91b0405e9723ae338242834b7186977adc64ccc55ee2cf91944
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953896
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953896
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/11248915-bf48-4d0c-922b-229730f39781.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/11248915-bf48-4d0c-922b-229730f39781.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/11248915-bf48-4d0c-922b-229730f39781
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:05:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe7c91054681ca91b0405e9723ae338242834b7186977adc64ccc55ee2cf91944","name":"Martin Roberts","registered_at":"2026-06-15T19:27:18Z","symbol":"NIM0808320","token_address":"0x493f81fd5db1443f834fa89f5cacf1dc6c97f0de","type":"artist","uuid":"11248915-bf48-4d0c-922b-229730f39781"}
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 0xe7c91054681ca91b0405e9723ae338242834b7186977adc64ccc55ee2cf91944. Chain 2 (Bitcoin): anchored in block 953896 (2026-06-16T06:05:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/11248915-bf48-4d0c-922b-229730f39781.json and https://artists.proofprofile.net/proofs/artist/11248915-bf48-4d0c-922b-229730f39781.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T06:05:56Z
  text: {"copyright_id":"0xe7c91054681ca91b0405e9723ae338242834b7186977adc64ccc55ee2cf91944","name":"Martin Roberts","registered_at":"2026-06-15T19:27:18Z","symbol":"NIM0808320","token_address":"0x493f81fd5db1443f834fa89f5cacf1dc6c97f0de","type":"artist","uuid":"11248915-bf48-4d0c-922b-229730f39781"}
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