Leon McCawley
type: MusicGroup
genre: classical
genre: classical piano
description: Leon McCawley (born 12 July 1973) is a British classical pianist. He studied with Heather Slade-Lipkin at Chetham's School of Music in Manchester, and with Eleanor Sokoloff at The Curtis Institute of
popularity: 16
followers: 638
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 953758
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953758
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b2069324-fe6c-4c27-b462-a8c8bb125940.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b2069324-fe6c-4c27-b462-a8c8bb125940.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b2069324-fe6c-4c27-b462-a8c8bb125940
additional property: OTSTimestamp
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  value: 2026-06-15T07:48:25Z
additional property: OTSCanonicalRecord
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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 0x3a01754303523b5398a8aca48eaed3652104902d84493c0842f286a665e92bb5. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2069324-fe6c-4c27-b462-a8c8bb125940.json and https://artists.proofprofile.net/proofs/artist/b2069324-fe6c-4c27-b462-a8c8bb125940.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T07:48:25Z
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album: Piano Works
  type: MusicAlbum
  date published: 2003-03-03
album: Schubert: Piano Music
  type: MusicAlbum
  date published: 2018-11-16
album: Natural Connection: Piano Music Inspired by the Natural World
  type: MusicAlbum
  date published: 2024-01-19