Xavier Depraz
type: MusicGroup
genre: neoclassical
genre: opera
description: Xavier Depraz, né Xavier Marcel Delaruelle (22 April 1926 – 18 October 1994) was a French opera singer and actor. Life Born in Albert (Somme), Depraz was a bass at the Paris Opéra until 1971. He to
popularity: 5
followers: 36
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8d58f35e4dd51e0b1913e5a28c1b2fac0c0dd19575fec696bb3f813f51779a6e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/970d5312-b6f6-463c-8c41-595ad7b8c690.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/970d5312-b6f6-463c-8c41-595ad7b8c690.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/970d5312-b6f6-463c-8c41-595ad7b8c690
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8d58f35e4dd51e0b1913e5a28c1b2fac0c0dd19575fec696bb3f813f51779a6e","name":"Xavier Depraz","registered_at":"2026-06-17T18:23:32Z","symbol":"NIM1480255","token_address":"0x7204945f0c84d8471b6cb70046e193eedc17310f","type":"artist","uuid":"970d5312-b6f6-463c-8c41-595ad7b8c690"}
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 0x8d58f35e4dd51e0b1913e5a28c1b2fac0c0dd19575fec696bb3f813f51779a6e. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/970d5312-b6f6-463c-8c41-595ad7b8c690.json and https://artists.proofprofile.net/proofs/artist/970d5312-b6f6-463c-8c41-595ad7b8c690.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x8d58f35e4dd51e0b1913e5a28c1b2fac0c0dd19575fec696bb3f813f51779a6e","name":"Xavier Depraz","registered_at":"2026-06-17T18:23:32Z","symbol":"NIM1480255","token_address":"0x7204945f0c84d8471b6cb70046e193eedc17310f","type":"artist","uuid":"970d5312-b6f6-463c-8c41-595ad7b8c690"}
album: L'angélus de la mer / Le crédo du paysan (feat. Jean-Claude Roc et son orchestre) [Mono Version]
  type: MusicAlbum
  date published: 1957-01-01
album: La voix des chênes / La chanson des peupliers (feat. Jean-Claude Roc et son orchestre) [Mono Version]
  type: MusicAlbum
  date published: 1957-01-01