John Marston
type: MusicGroup
description: John Marston is a character in the Red Dead video game series by Rockstar Games. He is the main playable protagonist of the 2010 video game Red Dead Redemption, wherein he must deal with the decline o
popularity: 4
followers: 371
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1279c9b9902f6574e455dba87fa1d2d1f0c3e28071afa4bd57b853b78d423cd8
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/d85d29bc-28e8-4e4d-8a01-95c48abbb34e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d85d29bc-28e8-4e4d-8a01-95c48abbb34e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d85d29bc-28e8-4e4d-8a01-95c48abbb34e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1279c9b9902f6574e455dba87fa1d2d1f0c3e28071afa4bd57b853b78d423cd8","name":"John Marston","registered_at":"2026-06-21T03:53:12Z","symbol":"NIM1807669","token_address":"0x5f0b20170604452551add8e439a55c34a4fee551","type":"artist","uuid":"d85d29bc-28e8-4e4d-8a01-95c48abbb34e"}
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 0x1279c9b9902f6574e455dba87fa1d2d1f0c3e28071afa4bd57b853b78d423cd8. 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/d85d29bc-28e8-4e4d-8a01-95c48abbb34e.json and https://artists.proofprofile.net/proofs/artist/d85d29bc-28e8-4e4d-8a01-95c48abbb34e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x1279c9b9902f6574e455dba87fa1d2d1f0c3e28071afa4bd57b853b78d423cd8","name":"John Marston","registered_at":"2026-06-21T03:53:12Z","symbol":"NIM1807669","token_address":"0x5f0b20170604452551add8e439a55c34a4fee551","type":"artist","uuid":"d85d29bc-28e8-4e4d-8a01-95c48abbb34e"}