Jan van der Roost
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genre: orchestra
description: Jan Van der Roost (born Duffel, 1956) is a Belgian composer. Van der Roost was educated at the Lemmensinstituut in Leuven, and followed further studies at the Royal Conservatory in Ghent and the Roya
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followers: 3920
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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 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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album: In Flanders' Fields Vol. 39: Jan van Der Roost
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  date published: 2004-04-22
album: フラッシング・ウインズ
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  date published: 2006
  track: リクディム ''4つのイスラエル舞曲'', 4. Con moto e follemento
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    genre: orchestra
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    additional property: OTSVerifyInstructions
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      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 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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  track: フラッシング・ウインズ
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    additional property: OTSVerifyInstructions
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-02T16:51:38Z
    audio: フラッシング・ウインズ
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album: Flashing Winds
album: ROOST: Sirius and other Works for Orchestra
album: Van der Roost: From Ancient Times - Sinfonia Hungarica
album: Colori (1)
album: Jan Van der Roost: Music for Wind Band
album: ヴァン・デル・ロースト&シエナ・ウインド・オーケストラ
album: A Tribute to Sax (1)
album: I Colori della Gioia (1)
album: I Colori della Gioia
album: Master Brass Nagoya (Live)
album: ヴァンデルロースト: 吹奏楽作品集

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Flashing Winds
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date published: 2006

フラッシング・ウインズ
type: MusicAlbum
date published: 2006

フラッシング・ウインズ
type: MusicAlbum
date published: 2006

ROOST: Sirius and other Works for Orchestra
type: MusicAlbum
date published: 2013-06-04

ROOST: Sirius and other Works for Orchestra
type: MusicAlbum
date published: 2013-06-04

Van der Roost: From Ancient Times - Sinfonia Hungarica
type: MusicAlbum
date published: 2014-01-07

Van der Roost: From Ancient Times - Sinfonia Hungarica
type: MusicAlbum
date published: 2014-01-07

Colori (1)
type: MusicAlbum
date published: 2015-01-01

Jan Van der Roost: Music for Wind Band
type: MusicAlbum
date published: 2016-01-01

Jan Van der Roost: Music for Wind Band
type: MusicAlbum
date published: 2016-07-01
track: Spartacus
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    date published: 2016-07-01
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-22T07:19:23Z
  audio: Spartacus
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ヴァン・デル・ロースト&シエナ・ウインド・オーケストラ
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date published: 2017-06-14
track: カンタベリー・コラール
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-13T15:39:45Z
  audio: カンタベリー・コラール
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A Tribute to Sax (1)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:55:08Z
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I Colori della Gioia (1)
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date published: 2018-11-26
track: I shall love but thee
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLP711800008
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T10:04:33Z
  additional property: 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 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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e93b03cbdf6f409d8a810fcaa3b507b534360b201d62d6847a89a2482c1e3c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NLP711800008.
    date published: 2026-07-04T10:04:33Z
  audio: I shall love but thee
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 76.53
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.241
    additional property: Energy
      type: PropertyValue
      value: 0.223
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.977
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.02
    additional property: Liveness
      type: PropertyValue
      value: 0.114
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.04
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.415
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

I Colori della Gioia
type: MusicAlbum
date published: 2018-11-26

Master Brass Nagoya (Live)
type: MusicAlbum
date published: 2019-03-08

Master Brass Nagoya (Live)
type: MusicAlbum
date published: 2019-03-08

ヴァンデルロースト: 吹奏楽作品集
type: MusicAlbum
date published: 2019-03-08