Mark Roberts
type: MusicGroup
description: Mark, Marc or Marcus Roberts may refer to: Creative artists Mark Roberts (actor) (1921–2006), American stage, film and television performer Mark Roberts (film producer), American film and televisio
popularity: 14
followers: 1116
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x85a236f1b33dc913e3dfeb4539252d0b9b4c4c3edc2f127665c194f50139df9a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953765
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953765
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/be82e2c6-f977-481d-bed5-f5f7e5f2baf4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/be82e2c6-f977-481d-bed5-f5f7e5f2baf4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/be82e2c6-f977-481d-bed5-f5f7e5f2baf4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T08:55:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x85a236f1b33dc913e3dfeb4539252d0b9b4c4c3edc2f127665c194f50139df9a","name":"Mark Roberts","registered_at":"2026-06-15T00:26:48Z","symbol":"NIM0624388","token_address":"0x6b973a9f8f86d9d61e251f09a3212c506a9e4f3a","type":"artist","uuid":"be82e2c6-f977-481d-bed5-f5f7e5f2baf4"}
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 0x85a236f1b33dc913e3dfeb4539252d0b9b4c4c3edc2f127665c194f50139df9a. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be82e2c6-f977-481d-bed5-f5f7e5f2baf4.json and https://artists.proofprofile.net/proofs/artist/be82e2c6-f977-481d-bed5-f5f7e5f2baf4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T08:55:24Z
  text: {"copyright_id":"0x85a236f1b33dc913e3dfeb4539252d0b9b4c4c3edc2f127665c194f50139df9a","name":"Mark Roberts","registered_at":"2026-06-15T00:26:48Z","symbol":"NIM0624388","token_address":"0x6b973a9f8f86d9d61e251f09a3212c506a9e4f3a","type":"artist","uuid":"be82e2c6-f977-481d-bed5-f5f7e5f2baf4"}
album: Voyage
  type: MusicAlbum
  date published: 2004-10-18
album: The Gloup
  type: MusicAlbum
  date published: 2006-01-01
album: Clive Gone
  type: MusicAlbum
  date published: 2008-01-01
album: Kid from the Shore
  type: MusicAlbum
  date published: 2010-10-06
album: The High Caul Cap
  type: MusicAlbum
  date published: 2014-09-02
album: We Put a Man on the Moon
  type: MusicAlbum
  date published: 2015-02-24
album: Graffiti
  type: MusicAlbum
  date published: 2015-09-19
album: Chassimoosa
  type: MusicAlbum
  date published: 2015-12-01