Richard Riordan
type: MusicGroup
description: Richard Joseph Riordan (May 1, 1930 – April 19, 2023) was an American businessman, investor, military commander, philanthropist, and politician. A decorated Korean War veteran and a member of the Repu
popularity: 5
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf5f3a5ca33d00faca9caf85cc82a7a01255d136dd7dc92a2674d5766d5bab1c7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a3307508-5b2c-43aa-bb8f-159eb0d253fd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a3307508-5b2c-43aa-bb8f-159eb0d253fd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a3307508-5b2c-43aa-bb8f-159eb0d253fd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf5f3a5ca33d00faca9caf85cc82a7a01255d136dd7dc92a2674d5766d5bab1c7","name":"Richard Riordan","registered_at":"2026-06-20T06:17:34Z","symbol":"NIM1537996","token_address":"0xa382435e9f7012cedc7c34c7771c6a477f704fae","type":"artist","uuid":"a3307508-5b2c-43aa-bb8f-159eb0d253fd"}
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 0xf5f3a5ca33d00faca9caf85cc82a7a01255d136dd7dc92a2674d5766d5bab1c7. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a3307508-5b2c-43aa-bb8f-159eb0d253fd.json and https://artists.proofprofile.net/proofs/artist/a3307508-5b2c-43aa-bb8f-159eb0d253fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0xf5f3a5ca33d00faca9caf85cc82a7a01255d136dd7dc92a2674d5766d5bab1c7","name":"Richard Riordan","registered_at":"2026-06-20T06:17:34Z","symbol":"NIM1537996","token_address":"0xa382435e9f7012cedc7c34c7771c6a477f704fae","type":"artist","uuid":"a3307508-5b2c-43aa-bb8f-159eb0d253fd"}