Mark Cox
type: MusicGroup
description: Mark Cox may refer to: Mark Cox (tennis) (born 1943), British tennis player Mark Cox (poet) (born 1956), American poet Mark Cox (rugby league) (born 1978), English rugby league player Mark Cox (actor
popularity: 8
followers: 36
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4f1a126220df79d8cfe2ff2cd2f9896bbafde14b286376e2259cc2b5bf69d0d7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953915
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953915
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/19cd1d73-e968-49ed-82c3-6d746043c6c6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/19cd1d73-e968-49ed-82c3-6d746043c6c6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/19cd1d73-e968-49ed-82c3-6d746043c6c6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T08:36:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4f1a126220df79d8cfe2ff2cd2f9896bbafde14b286376e2259cc2b5bf69d0d7","name":"Mark Cox","registered_at":"2026-06-15T22:46:51Z","symbol":"NIM0855894","token_address":"0x964fb4d110e25c43e668131fa12b767c5393fe1f","type":"artist","uuid":"19cd1d73-e968-49ed-82c3-6d746043c6c6"}
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 0x4f1a126220df79d8cfe2ff2cd2f9896bbafde14b286376e2259cc2b5bf69d0d7. Chain 2 (Bitcoin): anchored in block 953915 (2026-06-16T08:36:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/19cd1d73-e968-49ed-82c3-6d746043c6c6.json and https://artists.proofprofile.net/proofs/artist/19cd1d73-e968-49ed-82c3-6d746043c6c6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T08:36:32Z
  text: {"copyright_id":"0x4f1a126220df79d8cfe2ff2cd2f9896bbafde14b286376e2259cc2b5bf69d0d7","name":"Mark Cox","registered_at":"2026-06-15T22:46:51Z","symbol":"NIM0855894","token_address":"0x964fb4d110e25c43e668131fa12b767c5393fe1f","type":"artist","uuid":"19cd1d73-e968-49ed-82c3-6d746043c6c6"}
album: It's Hard When You've Got Something To Say
  type: MusicAlbum
  date published: 1999-10-12
album: Theory
  type: MusicAlbum
  date published: 2005-12-13
album: Mark Cox
  type: MusicAlbum
  date published: 2013-11-14