Guy Marks
type: MusicGroup
description: Guy Marks (October 31, 1923 – November 28, 1987) was an American actor, comedian, singer and impressionist. A familiar face on TV sitcoms and variety shows of the 1960s and 1970s, he appeared regularl
popularity: 2
followers: 79
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3558b15fd4e7d4b65fe80f0ac1fd36128de0efb7ae221b261f55ac7dfee1d5fb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c33cca52-6893-4ec3-8a85-839b595f5c2a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c33cca52-6893-4ec3-8a85-839b595f5c2a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c33cca52-6893-4ec3-8a85-839b595f5c2a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3558b15fd4e7d4b65fe80f0ac1fd36128de0efb7ae221b261f55ac7dfee1d5fb","name":"Guy Marks","registered_at":"2026-06-20T19:58:50Z","symbol":"NIM1699816","token_address":"0x5123ff45fae92752fa3bbf6feeb78c032088cfd3","type":"artist","uuid":"c33cca52-6893-4ec3-8a85-839b595f5c2a"}
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 0x3558b15fd4e7d4b65fe80f0ac1fd36128de0efb7ae221b261f55ac7dfee1d5fb. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c33cca52-6893-4ec3-8a85-839b595f5c2a.json and https://artists.proofprofile.net/proofs/artist/c33cca52-6893-4ec3-8a85-839b595f5c2a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x3558b15fd4e7d4b65fe80f0ac1fd36128de0efb7ae221b261f55ac7dfee1d5fb","name":"Guy Marks","registered_at":"2026-06-20T19:58:50Z","symbol":"NIM1699816","token_address":"0x5123ff45fae92752fa3bbf6feeb78c032088cfd3","type":"artist","uuid":"c33cca52-6893-4ec3-8a85-839b595f5c2a"}
album: Young Love (Live On The Ed Sullivan Show, December 13, 1970)
  type: MusicAlbum
  date published: 2020-11-06