Ward De Vleeschhouwer
type: MusicGroup
genre: traditional music
popularity: 7
followers: 375
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09b2a513cece36b558c4f2f685b65015aab6aa62da4e046f9691ff87a595611. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/53964606-8d5d-48e6-b944-dcaef5175ed1.json and https://artists.proofprofile.net/proofs/artist/53964606-8d5d-48e6-b944-dcaef5175ed1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
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album: La Flor de la Canela
  type: MusicAlbum
  date published: 1950
album: Chicha Morada
  type: MusicAlbum
  date published: 2013-09-30
album: Chicha Morada
  type: MusicAlbum
  date published: 2013-09-30
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2021-05-14
album: El Pío Pío
  type: MusicAlbum
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album: 14 Variations on the Peruvian National Anthem
  type: MusicAlbum
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  type: MusicAlbum
  date published: 2021-07-16
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2022-01-21
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  date published: 2022-08-26
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  date published: 2022-09-30
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  type: MusicAlbum
  date published: 2022-10-28
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  type: MusicAlbum
  date published: 2022-11-25
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  type: MusicAlbum
  date published: 2023-01-27
album: Nuit
  type: MusicAlbum
  date published: 2023-02-24
album: Inside Outside
  type: MusicAlbum
  date published: 2023-03-24
album: Optimism
  type: MusicAlbum
  date published: 2023-04-14
album: Lucien Hervé, Photographer Despite Himself (Soundtrack)
  type: MusicAlbum
  date published: 2023-04-28
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2023-06-23
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  type: MusicAlbum
  date published: 2023-08-04
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  type: MusicAlbum
  date published: 2023-08-25
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  type: MusicAlbum
  date published: 2023-10-20
album: Ronda de Navidad (Piano Version)
  type: MusicAlbum
  date published: 2023-12-08
album: Alma, Corazón y Vida
  type: MusicAlbum
  date published: 2024-03-15
album: Chicha Morada II
  type: MusicAlbum
  date published: 2024-05-17
  track: La Flor de la Canela
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    by artist: Ward De Vleeschhouwer
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      type: MusicAlbum
      date published: 2024-05-17
    genre: traditional music
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    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: La Flor de la Canela
album: NIAN
album: Powernotes - Cycle I
album: Powernotes - Cycle II

OTSVerificationAPI
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWU2030785

OTSTimestamp
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value: 2026-07-20T12:15:48Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef86f05fbcc5e0535b77b5193bc710ee74ed3d8477442d3142589f159a26da12. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWU2030785.
date published: 2026-07-20T12:15:48Z

La Flor de la Canela
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additional property: Tempo (BPM)
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additional property: Mode (Major/Minor)
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additional property: Instrumentalness
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additional property: Loudness (dB)
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additional property: Key Name
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NIAN
type: MusicAlbum
date published: 2024-10-31

Powernotes - Cycle I
type: MusicAlbum
date published: 2025-09-05

Powernotes - Cycle II
type: MusicAlbum
date published: 2025-10-17