Perry Mason
type: MusicGroup
description: Perry Mason is a fictional American criminal defense lawyer that is the main character in detective fiction written by Erle Stanley Gardner. Perry Mason appears in 82 novels and four short stories, al
popularity: 18
followers: 13
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x60c07cad79489ab74e28d1cab11f01d0c8b061858bccd0c43fb99d4e536516e4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953694
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953694
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6bf61d20-9375-4140-a576-d26a8cfdec17.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6bf61d20-9375-4140-a576-d26a8cfdec17.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6bf61d20-9375-4140-a576-d26a8cfdec17
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:38:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x60c07cad79489ab74e28d1cab11f01d0c8b061858bccd0c43fb99d4e536516e4","name":"Perry Mason","registered_at":"2026-06-14T15:51:22Z","symbol":"NIM0501455","token_address":"0xd91ce3211f39a3bcba1bb0843ab6ffd81e8114a7","type":"artist","uuid":"6bf61d20-9375-4140-a576-d26a8cfdec17"}
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 0x60c07cad79489ab74e28d1cab11f01d0c8b061858bccd0c43fb99d4e536516e4. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6bf61d20-9375-4140-a576-d26a8cfdec17.json and https://artists.proofprofile.net/proofs/artist/6bf61d20-9375-4140-a576-d26a8cfdec17.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:38:09Z
  text: {"copyright_id":"0x60c07cad79489ab74e28d1cab11f01d0c8b061858bccd0c43fb99d4e536516e4","name":"Perry Mason","registered_at":"2026-06-14T15:51:22Z","symbol":"NIM0501455","token_address":"0xd91ce3211f39a3bcba1bb0843ab6ffd81e8114a7","type":"artist","uuid":"6bf61d20-9375-4140-a576-d26a8cfdec17"}