1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec5916d95e8346fe2fedfe0fe24e2546071a6488d9984a5087848719e6f343f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/668d95f3-5b3f-49ee-96e4-edad3354ec4f.json and https://artists.proofprofile.net/proofs/artist/668d95f3-5b3f-49ee-96e4-edad3354ec4f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
4 Tyske Danser, Fra "Sechzehn Deutsche Tänze", Op 33, Dv 783
Etude, Ass-Dur, Op. 25 No. 1 ("Perle-Etyden")
Etude, C-Moll, Op. 25 No. 12 ("Osean-Etyden")
Edvard Grieg - Edvard Grieg: Slåttar Opus 72. Slåttar Frå Telemark.
Gibøens Bruremarsj. Gibøen's Bridal March. Hardingfele
Jon Vestafes Springar. Jon Vestafe's Springar. Hardingfele
Bruremarsj Frå Telemark. Wedding March from Telemark. Hardingfele
Haugelåt, Halling. Folkdance from the Hills. Hardingfele
Prillaren Fra Os Prestegjeld (Springdans). Folkdance from Os. Hardingfele
Gangar Etter Myllarguten. Folkdance After Myllarguten. Hardingfele
Røtnams-Knut, Halling. Røtnams-Knut from Hallingdal. Hardingfele
Bruremarsj Etter Myllarguten. Wedding March After Myllarguten. Hardingfele
Nils Rekves Halling. Nils Rekve's Halling. Hardingfele
Knut Luråsens Halling 1. Knut Luråsen's Halling 1. Hardingfele
Knut Luråsens Halling 2. Knut Luråsen's Halling 2. Hardingfele
Springar Etter Myllarguten. Springedance After Myllarguten. Hardingfele
Håvar Gibøens Draum Ved Oterholt Bru (Springdans). Håvar Gibøen's Dream Beside the Oterholt Bridge [Springdance] Hardingfele
Forspel/Tussebrureferda På Vossevangen (Gangar). Wedding Maren of the Goblins. A Og B: Hardingfele
Skuldalsbruri (Gangar). The Bride from Skuldal [Gangar]. Hardingfele
Kivlemøyane (Springar Frå Seljord). The Maidens from Kivle [Springdance]. Hardingfele
Kivlemøyane (Gangar). The Maidens from Kivle [Gangar]. Hardingfele
Haugelåt, Folkdance from the Hills op. 72 nr. 4
Gangar etter Myllarguten, Folkdance after Myllarguten op. 72 nr. 8
Bruremarsj etter Myllarguten, Weddingmarch after Myllarguten, op. 72 nr. 8
Lyric Pieces, Book 5, Op. 54: No. 4. Nocturne
Lyric Pieces, Book 2, Op. 38: No. 1. Berceuse
Lyric Pieces, Book 10, Op. 71: No. 2. Someraften (Summer's Eve)
Lyric Pieces, Book 10, Op. 71: No. 4. Skovstilhed (Peace of the Woods)
Lyric Pieces, Book 1, Op. 12: No. 1, Arietta
Lyric Pieces, Book 10, Op. 71: No. 2. Sommaraften
25 Norwegian Folksongs and Dances, Op. 17: No. 8. Grisen (The Pig)
25 Norwegian Folksongs and Dances, Op. 17: No. 12. Solfager og ormekongen (Solfager and the Snake King)
25 Norwegian Folksongs and Dances, Op. 17: No. 17. Kleggen og Fluga (The Horsefly and the Fly)
25 Norwegian Folksongs and Dances, Op. 17: No. 22. Kulok (Cow Call)
25 Norwegian Folksongs and Dances, Op. 17: No. 25. Rabnabryllup (The Raven's Wedding)
Lyric Pieces, Book 1, Op. 12: No. 1. Arietta
A Guided Tour of Nationalism in the Romantic Era, Vol. 7
Lyric Pieces, Book 2, Op. 38: No. 1. Berceuse (Cradle Song)
Lyric Pieces, Book 3, Op. 43: No. 1. Sommerfugl (Butterfly)
Lyric Pieces, Book 3, Op. 43: No. 4. Erotikk (Erotic)
Lyric Pieces, Book 4, Op. 47: No. 4. Halling (Norwegian Dance)
Lyric Pieces, Book 5, Op. 54: No. 2. Gangar (Norwegian March)
Lyric Pieces, Book 5, Op. 54: No. 3. Trolltog (March of the Trolls)
Lyric Pieces, Book 7, Op. 62: No. 5. Drommesyn (Phantom)