Isabelle Roelofs
type: MusicGroup
popularity: 8
followers: 563
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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 0xe2a65e6ed1acb7f156fb62061e36a80afebd8765c63f2c889bd152ef2b3ac8b7. 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/5a526555-65c2-48c5-9d45-b901c1c37de3.json and https://artists.proofprofile.net/proofs/artist/5a526555-65c2-48c5-9d45-b901c1c37de3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
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album: Fun in F
  type: MusicAlbum
  date published: 2019-08-28
album: Dizzy Fingers
  type: MusicAlbum
  date published: 2019-09-25
album: Radetzky March
  type: MusicAlbum
  date published: 2020-01-01
album: Colors of the Horn
  type: MusicAlbum
  date published: 2020-02-29
album: Colors of the Horn
  type: MusicAlbum
  date published: 2020-02-29
album: Frippery No. 1
  type: MusicAlbum
  date published: 2020-03-24
album: Song for Health
  type: MusicAlbum
  date published: 2020-04-01
album: Remembrances, Vol. 1 (French Horn Multitracks)
  type: MusicAlbum
  date published: 2020-05-05
album: Romanze (French Horn Multitrack)
  type: MusicAlbum
  date published: 2020-06-13
album: Through the Eyes of Love (French Horn Multitrack)
  type: MusicAlbum
  date published: 2020-06-19
album: Unicorn, Vol. 1 (French Horn Multitracks)
  type: MusicAlbum
  date published: 2020-08-08
album: Unicorn, Vol. 2 (French Horn Multitracks)
  type: MusicAlbum
  date published: 2020-09-01
album: Oblivion (Mellophonium Solo)
  type: MusicAlbum
  date published: 2020-09-14
album: Autumn Leaves
  type: MusicAlbum
  date published: 2020-10-23
album: Unicorn, Vol. 3 (French Horn Multitracks)
  type: MusicAlbum
  date published: 2020-10-28
album: A Horntastic Christmas, Vol. 2
  type: MusicAlbum
  date published: 2020-11-16
album: All You Need Is Christmas
  type: MusicAlbum
  date published: 2020-11-29
album: A Horntastic Christmas, Vol. 3
  type: MusicAlbum
  date published: 2020-12-04
album: Winnie the Pooh & the Honey Tree (French Horn Multitrack)
  type: MusicAlbum
  date published: 2021-01-20
album: Remembrances, Vol. 2 (French Horn Multitracks)
  type: MusicAlbum
  date published: 2021-05-04
album: The Big Ant (Quartet for 2 French Horns, Tenor Sax & Baritone Sax by Ilio Volante)
  type: MusicAlbum
  date published: 2021-06-09
album: Movie Themes on French Horn, Vol. 1 (French Horn Multitrack)
  type: MusicAlbum
  date published: 2021-06-17
album: Unicorn, Vol. 4 (French Horn Multitracks)
  type: MusicAlbum
  date published: 2021-08-04
album: Sinterklaas
  type: MusicAlbum
  date published: 2021-11-13
album: A Horntastic Christmas, Vol. 4
  type: MusicAlbum
  date published: 2021-11-29
album: Happy New Year
  type: MusicAlbum
  date published: 2022-01-01
album: Fanfare (For 6 French Horns)
  type: MusicAlbum
  date published: 2022-01-28
album: 5 Bagatelles
  type: MusicAlbum
  date published: 2022-02-22
album: Just for Horns, Vol. 1 Jazz
  type: MusicAlbum
  date published: 2022-04-25
album: Remembrances, Vol. 3
  type: MusicAlbum
  date published: 2022-05-04
album: Romantic Trios, Vol. 1 (for Violin, Piano & French Horn)
  type: MusicAlbum
  date published: 2022-06-03
album: Love themes (French Horn Multitrack)
  type: MusicAlbum
  date published: 2022-07-18
album: Amelie
  type: MusicAlbum
  date published: 2022-09-21
album: A Horntastic Christmas, Vol. 5
  type: MusicAlbum
  date published: 2022-11-23
album: Meet the Flinstones (French Horn Multitrack)
  type: MusicAlbum
  date published: 2023-03-04
album: JustForHorns: Opera, Vol. 1
  type: MusicAlbum
  date published: 2023-03-12
album: Fijne Verjaardag!
  type: MusicAlbum
  date published: 2023-03-15
album: The Last of Us (for French Horn and Piano)
  type: MusicAlbum
  date published: 2023-04-11
album: Frippery No. 11
  type: MusicAlbum
  date published: 2023-04-19
album: Remembrances, Vol. 4
  type: MusicAlbum
  date published: 2023-05-04
album: Intrada (French Horn Multitrack)
  type: MusicAlbum
  date published: 2023-09-01
album: Petite Suite
  type: MusicAlbum
  date published: 2023-09-07
album: Classic Pop and Rock
  type: MusicAlbum
  date published: 2023-09-30
album: 14 Christmas Pieces for French Horn and Piano
  type: MusicAlbum
  date published: 2023-11-25
album: Horntastic Christmas, Vol. 6
  type: MusicAlbum
  date published: 2023-11-27
album: Frippery No. 5 (for French Horn quartet)
  type: MusicAlbum
  date published: 2024-04-09
album: Golven en Lucht (for romantic valve horn and popband)
  type: MusicAlbum
  date published: 2024-06-23
album: Adagio (for Horn quartet)
  type: MusicAlbum
  date published: 2024-07-06
album: Dreamscape
  type: MusicAlbum
  date published: 2024-08-21
album: Fanfare from La Peri (for 8 Horns)
  type: MusicAlbum
  date published: 2024-11-12
album: Sicilienne (for 8 Horns)
  type: MusicAlbum
  date published: 2024-11-15
album: Horntastic Christmas, Vol. 7
  type: MusicAlbum
  date published: 2024-11-30
album: What a Wonderful World - Tuba and Piano
  type: MusicAlbum
  date published: 2025-01-01
album: On My Own (for French Horn Ensemble)
  type: MusicAlbum
  date published: 2025-03-09
album: The Spirit of Alphorn
album: Andromeda Serenade (for French Horn & Piano)
album: The Rose (for French Horn & Piano)

The Spirit of Alphorn
type: MusicAlbum
date published: 2025-06-26

Andromeda Serenade (for French Horn & Piano)
type: MusicAlbum
date published: 2025-07-19

The Rose (for French Horn & Piano)
type: MusicAlbum
date published: 2025-07-28