Rex Lawson
type: MusicGroup
genre: highlife
description: Rex Jim Lawson (4 March 1938 – 16 January 1971), known as Cardinal Rex, was a singer, trumpeter and bandleader from Buguma in present Rivers State, Nigeria. He became one of the best-known highlife mu
popularity: 23
followers: 1893
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4482cdf4c93ee6d0f9c98d13834ba8cf6e4c15259258e6bf27a63806bf093e5a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f70b47d8-8cc2-4243-9f58-83bac207936b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f70b47d8-8cc2-4243-9f58-83bac207936b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f70b47d8-8cc2-4243-9f58-83bac207936b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4482cdf4c93ee6d0f9c98d13834ba8cf6e4c15259258e6bf27a63806bf093e5a","name":"Rex Lawson","registered_at":"2026-06-12T13:57:30Z","symbol":"NIM0318403","token_address":"0x15ade33fb737d77b9c59e588fa983f7762869b44","type":"artist","uuid":"f70b47d8-8cc2-4243-9f58-83bac207936b"}
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 0x4482cdf4c93ee6d0f9c98d13834ba8cf6e4c15259258e6bf27a63806bf093e5a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f70b47d8-8cc2-4243-9f58-83bac207936b.json and https://artists.proofprofile.net/proofs/artist/f70b47d8-8cc2-4243-9f58-83bac207936b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x4482cdf4c93ee6d0f9c98d13834ba8cf6e4c15259258e6bf27a63806bf093e5a","name":"Rex Lawson","registered_at":"2026-06-12T13:57:30Z","symbol":"NIM0318403","token_address":"0x15ade33fb737d77b9c59e588fa983f7762869b44","type":"artist","uuid":"f70b47d8-8cc2-4243-9f58-83bac207936b"}
album: The Virtuoso Pianolist
  type: MusicAlbum
  date published: 1999-01-01
album: The Virtuoso Pianolist
  type: MusicAlbum
  date published: 1999-01-01
album: The Aeolian Company: Original Compositions and Arrangements for Pianola
  type: MusicAlbum
  date published: 2008-05-05
album: The Virtuoso Pianolist
  type: MusicAlbum
  date published: 2012-01-01
album: The Aeolian Company: Original Compositions & Arrangements for Pianola
  type: MusicAlbum
  date published: 2012-04-01
album: The Aeolian Company: Original Compositions & Arrangements for Pianola
  type: MusicAlbum
  date published: 2012-04-01