Mark Clark
type: MusicGroup
genre: celtic
genre: new age
description: Mark Clark may refer to: Mark A. Clark (politician) (born 1967), Arizona state legislator Mark A. Clark (general), U.S. Marine Corps general in charge of their Special Operations Command Mark W. Clar
popularity: 23
followers: 191
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x25a1c40b2404df7d3c49f95c3dee666a0588beb5668dadb9b4cae14157960ad5
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/82bad523-fa0b-4c8e-bc06-f5b604f5c939.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/82bad523-fa0b-4c8e-bc06-f5b604f5c939.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/82bad523-fa0b-4c8e-bc06-f5b604f5c939
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x25a1c40b2404df7d3c49f95c3dee666a0588beb5668dadb9b4cae14157960ad5","name":"Mark Clark","registered_at":"2026-06-12T03:09:19Z","symbol":"NIM0168636","token_address":"0xd872a86c61f7faec0f82a97c8486a0cba45215e7","type":"artist","uuid":"82bad523-fa0b-4c8e-bc06-f5b604f5c939"}
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 0x25a1c40b2404df7d3c49f95c3dee666a0588beb5668dadb9b4cae14157960ad5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/82bad523-fa0b-4c8e-bc06-f5b604f5c939.json and https://artists.proofprofile.net/proofs/artist/82bad523-fa0b-4c8e-bc06-f5b604f5c939.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x25a1c40b2404df7d3c49f95c3dee666a0588beb5668dadb9b4cae14157960ad5","name":"Mark Clark","registered_at":"2026-06-12T03:09:19Z","symbol":"NIM0168636","token_address":"0xd872a86c61f7faec0f82a97c8486a0cba45215e7","type":"artist","uuid":"82bad523-fa0b-4c8e-bc06-f5b604f5c939"}
album: Celtic Clark, Mark and Philip Riley: Celtic Collection
  type: MusicAlbum
  date published: 2000-01-01
album: Celtic Clark, Mark and Philip Riley: Celtic Collection
  type: MusicAlbum
  date published: 2000-01-01
album: Celtic Clark, Mark and Philip Riley: Celtic Collection
  type: MusicAlbum
  date published: 2000-01-01