Philippe Hirschhorn
type: MusicGroup
genre: chamber music
description: Philippe Hirschhorn (11 June 1946, Riga – 26 November 1996, Brussels) was a Soviet violinist. He won the Queen Elisabeth Music Competition in 1967. A citizen of the Soviet Union, he was born in Riga,
popularity: 2
followers: 467
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c115a3f9effe4d89cc24c3eee0516d42609bcb7e6ae62f131db4897823e0b77
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/afedef05-6e0d-4e5b-a581-57b7881ff1ac.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/afedef05-6e0d-4e5b-a581-57b7881ff1ac.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/afedef05-6e0d-4e5b-a581-57b7881ff1ac
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4c115a3f9effe4d89cc24c3eee0516d42609bcb7e6ae62f131db4897823e0b77","name":"Philippe Hirschhorn","registered_at":"2026-06-20T12:00:21Z","symbol":"NIM1606813","token_address":"0x4f57ca3b954b15fd7659bee66ff510f004f3bb87","type":"artist","uuid":"afedef05-6e0d-4e5b-a581-57b7881ff1ac"}
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 0x4c115a3f9effe4d89cc24c3eee0516d42609bcb7e6ae62f131db4897823e0b77. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/afedef05-6e0d-4e5b-a581-57b7881ff1ac.json and https://artists.proofprofile.net/proofs/artist/afedef05-6e0d-4e5b-a581-57b7881ff1ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x4c115a3f9effe4d89cc24c3eee0516d42609bcb7e6ae62f131db4897823e0b77","name":"Philippe Hirschhorn","registered_at":"2026-06-20T12:00:21Z","symbol":"NIM1606813","token_address":"0x4f57ca3b954b15fd7659bee66ff510f004f3bb87","type":"artist","uuid":"afedef05-6e0d-4e5b-a581-57b7881ff1ac"}
album: Philippe Hirschhorn (1st Prize Queen Elisabeth International Competition 1967) [Live]
  type: MusicAlbum
  date published: 2007
album: Philippe Hirschhorn (1st Prize Queen Elisabeth International Competition 1967) [Live]
  type: MusicAlbum
  date published: 2017-07-21