Robert Martin
type: MusicGroup
description: Robert Martin may refer to: Politicians Robert N. Martin (1798–1870), American politician, U.S. representative from Maryland Robert Martin (Oklahoma governor) (1833–1897), American politician, gove
popularity: 11
followers: 67
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2699d1c87dfdc72d14514d072e393398cdd45a668e056b3df16097efaf356eac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953684
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953684
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/65901025-2078-4abe-a660-fb5ab6ca0ae0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/65901025-2078-4abe-a660-fb5ab6ca0ae0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/65901025-2078-4abe-a660-fb5ab6ca0ae0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:51:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2699d1c87dfdc72d14514d072e393398cdd45a668e056b3df16097efaf356eac","name":"Robert Martin","registered_at":"2026-06-14T15:04:57Z","symbol":"NIM0490373","token_address":"0x5d4ed25268fd0313fb5e627b23f2f72b6b589924","type":"artist","uuid":"65901025-2078-4abe-a660-fb5ab6ca0ae0"}
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 0x2699d1c87dfdc72d14514d072e393398cdd45a668e056b3df16097efaf356eac. Chain 2 (Bitcoin): anchored in block 953684 (2026-06-14T19:51:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/65901025-2078-4abe-a660-fb5ab6ca0ae0.json and https://artists.proofprofile.net/proofs/artist/65901025-2078-4abe-a660-fb5ab6ca0ae0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T19:51:57Z
  text: {"copyright_id":"0x2699d1c87dfdc72d14514d072e393398cdd45a668e056b3df16097efaf356eac","name":"Robert Martin","registered_at":"2026-06-14T15:04:57Z","symbol":"NIM0490373","token_address":"0x5d4ed25268fd0313fb5e627b23f2f72b6b589924","type":"artist","uuid":"65901025-2078-4abe-a660-fb5ab6ca0ae0"}