David Cameron
type: MusicGroup
description: David William Donald Cameron, Baron Cameron of Chipping Norton (born 9 October 1966), is a British politician who served as Prime Minister of the United Kingdom from 2010 to 2016. Until 2015, he led t
popularity: 4
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd86495a1a426b43f6931185f4239894088e4c495c3cb5ee8137569a9df26f074
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953888
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953888
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0d6e5a31-034e-4471-8da8-bfb47bf0da7b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0d6e5a31-034e-4471-8da8-bfb47bf0da7b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0d6e5a31-034e-4471-8da8-bfb47bf0da7b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T04:55:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd86495a1a426b43f6931185f4239894088e4c495c3cb5ee8137569a9df26f074","name":"David Cameron","registered_at":"2026-06-15T18:05:03Z","symbol":"NIM0788698","token_address":"0x0edb4b780049803a6cc149f99b318d88cccccf26","type":"artist","uuid":"0d6e5a31-034e-4471-8da8-bfb47bf0da7b"}
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 0xd86495a1a426b43f6931185f4239894088e4c495c3cb5ee8137569a9df26f074. Chain 2 (Bitcoin): anchored in block 953889 (2026-06-16T04:57:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d6e5a31-034e-4471-8da8-bfb47bf0da7b.json and https://artists.proofprofile.net/proofs/artist/0d6e5a31-034e-4471-8da8-bfb47bf0da7b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T04:57:45Z
  text: {"copyright_id":"0xd86495a1a426b43f6931185f4239894088e4c495c3cb5ee8137569a9df26f074","name":"David Cameron","registered_at":"2026-06-15T18:05:03Z","symbol":"NIM0788698","token_address":"0x0edb4b780049803a6cc149f99b318d88cccccf26","type":"artist","uuid":"0d6e5a31-034e-4471-8da8-bfb47bf0da7b"}