Robert Marshall
type: MusicGroup
description: Robert Marshall may refer to: Robert Marshall (magician), medieval magician's assistant allegedly involved in a plot to kill Edward II of England Robert Marshall (Irish judge) (1695–1774) Robert Ma
popularity: 3
followers: 33
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x46f7e6469810e2af6a838c2309f0c65f2e23be03509ef3eed355d27633459c6c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953877
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953877
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/05122df0-3a4d-41e9-805a-3810b8d0280c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/05122df0-3a4d-41e9-805a-3810b8d0280c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/05122df0-3a4d-41e9-805a-3810b8d0280c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:39:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x46f7e6469810e2af6a838c2309f0c65f2e23be03509ef3eed355d27633459c6c","name":"Robert Marshall","registered_at":"2026-06-15T15:23:34Z","symbol":"NIM0750141","token_address":"0xa039842976921d61dc0f84b842b1863a7fc7f6a7","type":"artist","uuid":"05122df0-3a4d-41e9-805a-3810b8d0280c"}
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 0x46f7e6469810e2af6a838c2309f0c65f2e23be03509ef3eed355d27633459c6c. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/05122df0-3a4d-41e9-805a-3810b8d0280c.json and https://artists.proofprofile.net/proofs/artist/05122df0-3a4d-41e9-805a-3810b8d0280c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
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