Alex Clark
type: MusicGroup
description: Alex Clark may refer to: Alex Clark (baseball), American baseball player Alex Clark (journalist), British literary journalist Alex Clark (politician) (1916–1991), American politician Alex Clark (
popularity: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x390ae6475da9e562432bf6b9571f5fa22bbdc3e0b5616aadd2706a12248b0840
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953982
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953982
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2d01444b-63de-4123-a50a-398476b9d2f5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2d01444b-63de-4123-a50a-398476b9d2f5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2d01444b-63de-4123-a50a-398476b9d2f5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T17:42:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x390ae6475da9e562432bf6b9571f5fa22bbdc3e0b5616aadd2706a12248b0840","name":"Alex Clark","registered_at":"2026-06-16T05:13:00Z","symbol":"NIM0948125","token_address":"0xe0ccc024d3374c76443a10c06be1b1eb5e1f78ce","type":"artist","uuid":"2d01444b-63de-4123-a50a-398476b9d2f5"}
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 0x390ae6475da9e562432bf6b9571f5fa22bbdc3e0b5616aadd2706a12248b0840. Chain 2 (Bitcoin): anchored in block 953982 (2026-06-16T17:42:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d01444b-63de-4123-a50a-398476b9d2f5.json and https://artists.proofprofile.net/proofs/artist/2d01444b-63de-4123-a50a-398476b9d2f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T17:42:23Z
  text: {"copyright_id":"0x390ae6475da9e562432bf6b9571f5fa22bbdc3e0b5616aadd2706a12248b0840","name":"Alex Clark","registered_at":"2026-06-16T05:13:00Z","symbol":"NIM0948125","token_address":"0xe0ccc024d3374c76443a10c06be1b1eb5e1f78ce","type":"artist","uuid":"2d01444b-63de-4123-a50a-398476b9d2f5"}