Henri-Jacques de Croes
type: MusicGroup
description: thumb|Portrait of de Croes, 1747 Henricus Jacobus de Croes, Hendrik Jacob de Croes, known as Henri-Jacques de Croes (baptised 19 September 1705 in Antwerp, died 16 August 1786 in Brussels) was a Flemi
popularity: 2
followers: 88
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x629897d37724e3167bf7b37cb38b6ff5a5ad964ac7bac1e1a0ad4bc207a62f83
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fad1bf76-6308-473d-9917-e8541a587908.ots
additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/fad1bf76-6308-473d-9917-e8541a587908.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fad1bf76-6308-473d-9917-e8541a587908
additional property: OTSTimestamp
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  value: 2026-06-21T18:08:38Z
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 0x629897d37724e3167bf7b37cb38b6ff5a5ad964ac7bac1e1a0ad4bc207a62f83. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fad1bf76-6308-473d-9917-e8541a587908.json and https://artists.proofprofile.net/proofs/artist/fad1bf76-6308-473d-9917-e8541a587908.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:16:07Z
  text: {"copyright_id":"0x629897d37724e3167bf7b37cb38b6ff5a5ad964ac7bac1e1a0ad4bc207a62f83","name":"Henri-Jacques de Croes","registered_at":"2026-06-21T17:08:44Z","symbol":"NIM1981823","token_address":"0x58c613d93b76ffd40996a6060591ba879c27addb","type":"artist","uuid":"fad1bf76-6308-473d-9917-e8541a587908"}
album: Henri-Jacques de Croes: La Sonate Égarée
  type: MusicAlbum
  date published: 2019-06-28
album: Henri-Jacques de Croes: La Sonate Égarée
  type: MusicAlbum
  date published: 2019-06-28
album: De Croes: Brussels, 1734: VI Concerti for Violin
  type: MusicAlbum
  date published: 2021-02-10