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 0xc9b6b784f5d5d5e329eeab3f9fc4c3b3b4194a46fa8b688130c7e858adb6c639. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d7bae606-b82f-4605-9e82-fafb94f88cda.json and https://artists.proofprofile.net/proofs/artist/d7bae606-b82f-4605-9e82-fafb94f88cda.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Lapse of Time, an Oratorio on Charles Darwin: On the Origin of Species
Part I: Watch the Sea at Work - The Lapse of Time, an oratorio on Darwin: On the Origin of Species
Part II: Struggle for Life - The Lapse of Time, an oratorio on Darwin: On the Origin of Species
Interlude 1: Mistletoe - The Lapse of Time, an oratorio on Darwin: On the Origin of Species
Part III: Change - The Lapse of Time, an oratorio on Darwin: On the Origin of Species
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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9b666227e3587c75154c7e3d57800783feca005b2090582df627199d256898. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NOFZS2294040.
Part IV: Extinction - The Lapse of Time, an oratorio on Darwin: On the Origin of Species
Interlude 2: Bones! - The Lapse of Time, an oratorio on Darwin: On the Origin of Species
Part V: Natura non Facit Saltum - Epilogue - The Lapse of Time, an oratorio on Darwin: On the Origin of Species
Fossegrimen, Op. 27;Nissene på låven, gangar (piano solo)
Fossegrimen, Op. 27;Bruremarsj, Allegretto marciale
Fossegrimen, Op. 27;Fanitullen, Allegro con fuoco
Three Works for Hardanger fiddle solo;Rondo
Three Works for Hardanger fiddle solo; Fantasi nr. 1
Three Works for Hardanger fiddle solo; Fantasi nr. 2
Quintet for Hardanger fiddle and string quartet, Op. 50;Andante
Quintet for Hardanger fiddle and string quartet, Op. 50;Allegro
Halvorsen: Suite For Violin And Piano in g minor, I. Maestoso
Halvorsen: Suite For Violin And Piano in g minor, II. Melodie
Halvorsen: Suite For Violin And Piano in g minor, III. Scherzo
Halvorsen: Suite For Violin And Piano in g minor, IV. Finale
Halvorsen: Suite Mosaique, I. Intermezzo Orientale
Halvorsen: Suite Mosaique, II. Entr'Acte
Halvorsen: Suite Mosaique, III. Scherzino; Spurven
Halvorsen: Suite Mosaique, IV. Chant De Veslemøy
Halvorsen: Suite Mosaique, V. Fete Nuptial Rustique
Halvorsen: Norwegische Weise - Den Gamle Fiskermandens Sang (The old Fisherman’s Song)
Halvorsen: Stimmungsbilder, I. Praeludium
Halvorsen: Stimmungsbilder, II. Einsamkeit
Halvorsen: Stimmungsbilder, III. Ein Volkslied
Halvorsen: Stimmungsbilder, IV. Geplauder
Halvorsen: Stimmungsbilder, V. Albumblatt
Halvorsen: Stimmungsbilder, VI. Abendstimmung
La mattina: II. Luminoso - Quasi allegro
The Heart, It Soars: I. The Autumn of Childhood
The Heart, It Soars: III. All Seasons Must Pass
Arctic Lines: IV. Fighting with the Polar Bear
Snøsøstera (Musikk frå Teaterframsyninga)
Christophersen/Tandberg/Skjelbred: Concertos
Concerto for Violin and Strings: I. Unfolding
Concerto for Violin and Strings:: II. Air and Cadenza (attacca)
Concerto for Violin and Strings: III. Return
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb312ecc76aa5221d16d0528806ab22b3507e74cee1301ec9f432e7cb0be8223. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NOFZS2413050.
Munch Suite: Woman in three Stages, Sphinx
Munch Suite: Vampire, Love and Suffering
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71082fe5719c9c0e261b63b6fed57b84cf561a55b1c2db4778529c39dceb64d3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NOEHX2203010.
Entirety for Guitar, Electronics and Orchestra
Henning Sommerro: BRIMI: suite for fele og orkester/Fem nordiske portrett: suite for trekkspel og orkester
A Swan Lake (feat. Norwegian National Opera Orchestra & Per Kristian Skalstad)
Overture (feat. Norwegian National Opera Orchestra & Per Kristian Skalstad)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefd22976b504bacb5c740b3a5c34e6f29a9dd8478207c9ca0df6b90c3fbf80f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCACS1617537.
A Village (feat. Elisabeth Teige, Norwegian National Opera Orchestra & Per Kristian Skalstad)
A Story (feat. Norwegian National Opera Orchestra & Per Kristian Skalstad)
An Ornithologist (feat. Norwegian National Opera Orchestra & Per Kristian Skalstad)
Enter the Lake (feat. Norwegian National Opera Orchestra & Per Kristian Skalstad)
Flocking (feat. Norwegian National Opera Orchestra & Per Kristian Skalstad)
Duet (feat. Norwegian National Opera Orchestra & Per Kristian Skalstad)
Beach Party, Pt. 1 (feat. Berger Iver Færder, Catharina Chen, Norwegian National Opera Orchestra & Per Kristian Skalstad)
Beach Party, Pt. 2 (feat. Elisabeth Teige, Lasse Rossing, Norwegian National Opera Orchestra & Per Kristian Skalstad)
Finale (feat. Elisabeth Teige, Norwegian National Opera Orchestra & Per Kristian Skalstad)
Swan Song 1 (Fine! Great! Wonderful!) [feat. Elisabeth Teige, Norwegian National Opera Orchestra & Per Kristian Skalstad]
Swan Song 2 (Eva) [feat. Elisabeth Teige, Norwegian National Opera Orchestra & Per Kristian Skalstad]
Swan Song 3 (With the Graceful Intensity of a Dancer) [feat. Elisabeth Teige, Norwegian National Opera Orchestra & Per Kristian Skalstad]
Fartein Valen – on the Path to His Modernism
String Quartet, Op. 0; I Andante più tosto Allegretto
String Quartet, Op. 0; II Scherzo, Allegro molto vivace
String Quartet, Op. 0; III Vivace, ma non troppo
Sonata for Violin and Piano, Op. 3; I Allegro espressivo
Sonata for Violin and Piano, Op. 3; II Allegretto con variazioni, Fuga, Lento
Trio for Piano, Violin and Cello, Op. 5; I Moderato
Trio for Piano, Violin and Cello, Op. 5; II Scherzo, Allegro, Meno mosso, (Tempo I)
Trio for Piano, Violin and Cello, Op. 5; III Largo
Trio for Piano, Violin and Cello, Op. 5; IV Finale, Allegro molto, meno mosso, Tempo I, Meno mosso, (Tempo I)