Douglas Smith
type: MusicGroup
description: Douglas, Doug or Dougie Smith may refer to: Arts and entertainment Douglas Smith (broadcaster) (1924–1972), British radio broadcaster Doug Smith (composer) (born 1963), American composer and pianis
popularity: 15
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xac11dc73d706c020a2344ddcab2fddee0173820dffb08d18c50cd1b39e12374a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953610
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953610
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/13aed141-eb48-4c43-82c1-c64f0b01b721.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/13aed141-eb48-4c43-82c1-c64f0b01b721.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/13aed141-eb48-4c43-82c1-c64f0b01b721
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T07:58:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xac11dc73d706c020a2344ddcab2fddee0173820dffb08d18c50cd1b39e12374a","name":"Douglas Smith","registered_at":"2026-06-14T06:28:38Z","symbol":"NIM0367175","token_address":"0x3f3b028b516ddab32938f9fa4199795ed278f923","type":"artist","uuid":"13aed141-eb48-4c43-82c1-c64f0b01b721"}
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 0xac11dc73d706c020a2344ddcab2fddee0173820dffb08d18c50cd1b39e12374a. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13aed141-eb48-4c43-82c1-c64f0b01b721.json and https://artists.proofprofile.net/proofs/artist/13aed141-eb48-4c43-82c1-c64f0b01b721.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T07:58:09Z
  text: {"copyright_id":"0xac11dc73d706c020a2344ddcab2fddee0173820dffb08d18c50cd1b39e12374a","name":"Douglas Smith","registered_at":"2026-06-14T06:28:38Z","symbol":"NIM0367175","token_address":"0x3f3b028b516ddab32938f9fa4199795ed278f923","type":"artist","uuid":"13aed141-eb48-4c43-82c1-c64f0b01b721"}