Jonathan Powell
type: MusicGroup
genre: classical piano
description: Jonathan Powell may refer to: Jonathan Powell (musician) (1969–2025), British musician Jonathan Powell (producer) (born 1947), British television producer and executive Jonathan Powell (civil serva
popularity: 13
followers: 559
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x06d4460315feae624ebebb38ae7e11e52ca3a17a710738ec4705fb1f5f74d8e4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953727
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953727
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9108c80c-5713-4d64-8b19-cc9e8aae2e95.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9108c80c-5713-4d64-8b19-cc9e8aae2e95.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9108c80c-5713-4d64-8b19-cc9e8aae2e95
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T02:33:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x06d4460315feae624ebebb38ae7e11e52ca3a17a710738ec4705fb1f5f74d8e4","name":"Jonathan Powell","registered_at":"2026-06-14T19:43:07Z","symbol":"NIM0556662","token_address":"0xdea75a794a47280e15ee125bf802e54bd68b0665","type":"artist","uuid":"9108c80c-5713-4d64-8b19-cc9e8aae2e95"}
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 0x06d4460315feae624ebebb38ae7e11e52ca3a17a710738ec4705fb1f5f74d8e4. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9108c80c-5713-4d64-8b19-cc9e8aae2e95.json and https://artists.proofprofile.net/proofs/artist/9108c80c-5713-4d64-8b19-cc9e8aae2e95.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T02:33:01Z
  text: {"copyright_id":"0x06d4460315feae624ebebb38ae7e11e52ca3a17a710738ec4705fb1f5f74d8e4","name":"Jonathan Powell","registered_at":"2026-06-14T19:43:07Z","symbol":"NIM0556662","token_address":"0xdea75a794a47280e15ee125bf802e54bd68b0665","type":"artist","uuid":"9108c80c-5713-4d64-8b19-cc9e8aae2e95"}
album: Goldenweiser, A.: Piano Music, Vol. 1
  type: MusicAlbum
  date published: 2008-01-01