John Smith
type: MusicGroup
description: John Smith is a common personal name. It is also commonly used as a placeholder name and pseudonym, and is sometimes used in the United States and the United Kingdom as a term for an average person.
popularity: 12
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xefef408b3c779390f87fafb695f841b3b197cabaef683c4c85698e0afd97be33
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953620
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953620
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d091fb4-c80d-4fb6-8fd0-bbf09eefd1eb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d091fb4-c80d-4fb6-8fd0-bbf09eefd1eb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1d091fb4-c80d-4fb6-8fd0-bbf09eefd1eb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T09:36:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xefef408b3c779390f87fafb695f841b3b197cabaef683c4c85698e0afd97be33","name":"John Smith","registered_at":"2026-06-14T07:32:45Z","symbol":"NIM0382487","token_address":"0xd2ef6749b62eff3c1355a87614be069638fe1ec6","type":"artist","uuid":"1d091fb4-c80d-4fb6-8fd0-bbf09eefd1eb"}
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 0xefef408b3c779390f87fafb695f841b3b197cabaef683c4c85698e0afd97be33. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d091fb4-c80d-4fb6-8fd0-bbf09eefd1eb.json and https://artists.proofprofile.net/proofs/artist/1d091fb4-c80d-4fb6-8fd0-bbf09eefd1eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T09:36:10Z
  text: {"copyright_id":"0xefef408b3c779390f87fafb695f841b3b197cabaef683c4c85698e0afd97be33","name":"John Smith","registered_at":"2026-06-14T07:32:45Z","symbol":"NIM0382487","token_address":"0xd2ef6749b62eff3c1355a87614be069638fe1ec6","type":"artist","uuid":"1d091fb4-c80d-4fb6-8fd0-bbf09eefd1eb"}
album: Classical Melodies for Studying & Concentration
  type: MusicAlbum
  date published: 2025-05-09
album: Academic Insight Odyssey
  type: MusicAlbum
  date published: 2025-05-09