Jean-Baptiste Duvernoy
type: MusicGroup
description: thumb|right|220px|Picture from a purported portrait of Jean-Baptiste Duvernoy Jean-Baptiste Duvernoy (c. 1802 – c. 1880) was a French pianist and composer of the Romantic period. He is best known for
popularity: 15
followers: 77
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x8465a8e432a30cc56e979d53c2aed94141f17ee6298b876f4fc741f96eed958c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953714
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953714
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8089cd26-4c44-4517-80a5-c08f90efca1a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8089cd26-4c44-4517-80a5-c08f90efca1a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8089cd26-4c44-4517-80a5-c08f90efca1a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T00:43:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8465a8e432a30cc56e979d53c2aed94141f17ee6298b876f4fc741f96eed958c. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8089cd26-4c44-4517-80a5-c08f90efca1a.json and https://artists.proofprofile.net/proofs/artist/8089cd26-4c44-4517-80a5-c08f90efca1a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T00:43:59Z
  text: {"copyright_id":"0x8465a8e432a30cc56e979d53c2aed94141f17ee6298b876f4fc741f96eed958c","name":"Jean-Baptiste Duvernoy","registered_at":"2026-06-14T18:00:13Z","symbol":"NIM0532159","token_address":"0x9d6037df5af254b707b6cedd089bd1bfdc8e4bb3","type":"artist","uuid":"8089cd26-4c44-4517-80a5-c08f90efca1a"}
album: School of Mechanism, Op. 120: Studio No. 2 in C Major
  type: MusicAlbum
  date published: 2018-02-14
album: Jean-Baptiste Duvernoy: School of Mechanism Op. 120
  type: MusicAlbum
  date published: 2023-04-30
album: Gianfranco D'elia - Jean-Baptiste Duvernoy - Elementary Studies Op. 176
  type: MusicAlbum
  date published: 2023-12-16