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 0x101ff51b1cddc7eefe9ddd2f59a6ec0d2e259ac08a65dd8cca335578b77ad3fd. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3da94bc4-0bba-45b5-a8c2-99344cb65c1c.json and https://artists.proofprofile.net/proofs/artist/3da94bc4-0bba-45b5-a8c2-99344cb65c1c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nystroem: Ishavet / Sinfonia breve / Sinfonia seria
Nystroem: Ishavet / Viola Concerto / Sinfonia Concertante
Ishavet, "the Arctic Ocean": II. Agitato
Viola Concerto, "Hommage a la France": I. Allegro, tres rythme
Viola Concerto, "Hommage a la France": II. Lento: Molto tranquillo
Viola Concerto, "Hommage a la France": III. Allegro: Scherzando
Sinfonia Concertante: II. Allegro bucolico
Sinfonia concertante: II. Allegro bucolico
Sinfonia espressiva, "Symphony No. 2": I. Lento
Sinfonia espressiva, "Symphony No. 2": II. Allegro scherzando
Sinfonia espressiva, "Symphony No. 2": III. Adagio
Sinfonia espressiva, "Symphony No. 2": IV. Allegro risoluto
Sinfonia seria, "Symphony No. 5": Pt. II
Nystroem: Sinfonia del mare & Sinfonia concertante (Recorded 1958-1971)
Sanger vid havet (Songs at the Sea): No. 1. Ute i skaren
Sånger vid havet (Songs at the Sea): No. 2. Nocturne
Sanger vid havet (Songs at the Sea): No. 3. Havets visa
Sanger vid havet (Songs at the Sea): No. 4. Jag har ett hem vid havet
Sanger vid havet (Songs at the Sea): No. 5. Jag vantar manen
Kopmannen i Venedig (The Merchant of Venice): I. Forspel (Prelude)
Kopmannen i Venedig (The Merchant of Venice): II. Burlesk
Kopmannen i Venedig (The Merchant of Venice): III. Nocturne
Kopmannen i Venedig (The Merchant of Venice): IV. Maskspel (Masquerade)
Sjal och landskap (Soul and Landscape): No. 1. Vitt land (White Land)
Sjal och landskap (Soul and Landscape): No. 2. Onskan (My Wish)
Sjal och landskap (Soul and Landscape): No. 3. Bara hos den … (Only By the One)
The Midsommardrommen (The Midsummer Dream)
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 0x033ffa67368f100f43046f80fc7ab404bce5c0d0d72cc61268eae4f4022bbce1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA1301801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c086d41d8bd87c44fc24924151d3943df5bd214584a5c1dcb6ecbc8b122e403. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA1301802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1853c480a65cac6f8b8a055bae272db2b253c1bb6acc86b3654c43b070cde2c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA1301803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca8c14664195a34bccaf089729ce3987ea48562320a759273b008cdadc6840b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA1301804.
Nystroem: Songs by the Sea / Sånger vid havet
Sanger vid havet (Songs at the Sea): No. 1, Ute i skaren
Sanger vid havet (Songs at the Sea): No. 2, Nocturne
Sanger vid havet (Songs at the Sea): No. 3, Havets visa
Sanger vid havet (Songs at the Sea): No. 4, Jag har ett hem vid havet
Sanger vid havet (Songs at the Sea): No. 5, Jag vantar manen
Kopmannen i Venedig (The Merchant of Venice): I. Forspel
Kopmannen i Venedig (The Merchant of Venice): IV. Maskspel
Sjal och landskap (Soul and Landscape): No. 1, Vitt land
Sjal och landskap (Soul and Landscape): No. 2, Onskan
Sjal och landskap (Soul and Landscape): No. 3, Bara hos den…
Sinfonia shakespeariana, "Symphony No. 4": I. Lento - Allegro - Lento
Sinfonia shakespeariana, "Symphony No. 4": II. Allegro scherzando
Sinfonia shakespeariana, "Symphony No. 4": III. Allegro
Sinfonia tramontana, "Symphony No. 6": I. Lento - Allegro molto scherzando - Lento
Sinfonia tramontana, "Symphony No. 6": II. Lento - Allegro - Andante
Nystroem: Concerto for Strings Nos. 1 & 2
Concerto for Strings No.1: I. Grave - Allegro - Grave
Concerto for Strings No.1: III. Allegro molto marcato
Concerto for Strings No. 2: I. Lento - Allegro
Concerto for Strings No. 2: III. Allegro
Sanger vid havet (Songs at the Sea): No. 2. Nocturne
Angest: No. 1. Det finns ingenting i varlden mer an du
Angest: No. 3. Min angest ar en risig skog
Angest: No. 5. Dina lappar aro som skogar efter regn
Sjal och landskap (Soul and Landscape): No. 1. Vitt land
Sjal och landskap (Soul and Landscape): No. 2. Onskan
Sjal och landskap (Soul and Landscape): No. 3. Bara hos den …
Partita for Flute, Strings and Harp: I. Lento
Partita for Flute, Strings and Harp: II. Allegro
Partita for Flute, Strings and Harp: III. Adagio
Partita for Flute, Strings and Harp: IV. Canto semplice
Partita for Flute, Strings and Harp: V. Molto ritmico
Sanger vid havet (Songs at the Sea): No. 1, Ute i skären
Sanger vid havet (Songs at the Sea): No. 5, Jag väntar månen
8 Dikter ur Ångest: No. 1, Det finns ingenting i världen mer än du
8 Dikter ur Ångest: No. 2, Ingenting är som du
8 Dikter ur Ångest: No. 3, Min ångest är en risig skog
8 Dikter ur Ångest: No. 4, Kärleken är intet
8 Dikter ur Ångest: No. 5, Dina läppar äro som skogar efter regn
8 Dikter ur Ångest: No. 6, Dina ögon äro så bara
8 Dikter ur Ångest: No. 7, För mig på stigar
8 Dikter ur Ångest: No. 8, Under stjärnorna
Sjal och landskap (Soul and Landscape): No. 2, Önskan
Sjal och landskap (Soul and Landscape): No. 3, Bara hos den …
Ur musiken till Stormen: Jonos och Ceres sång
Sanger vid havet (Songs at the Sea): Ute i skären
Sanger vid havet (Songs at the Sea): Nocturne
Sanger vid havet (Songs at the Sea): Havets visa
Sanger vid havet (Songs at the Sea): Jag har ett hem vid havet
Sanger vid havet (Songs at the Sea): Jag väntar månen
Ur Musiken Tell Stormen: Jonos Och Ceres Sang
Sanger vid havet (Songs at the Sea): Ute I Skaren
Sanger vid havet (Songs at the Sea): Havets Visa
Sanger vid havet (Songs at the Sea): Jag Har Ett Hem Vid Havet
Sanger vid havet (Songs at the Sea): Jag Vantar Manen
Nystroem: The Tempest, Songs by the Sea, & Sinfonia del mare
Sånger vid havet: No. 4, Jag har ett hem vid havet
Sånger vid havet: No. 5, Jag väntar månen
Sinfonia del mare "Symphony No. 3": I. Lento
Sinfonia del mare "Symphony No. 3": II. Allegro
Sinfonia del mare "Symphony No. 3": III. Lento
Sinfonia del mare "Symphony No. 3": IV. Allegro
Nystroem: Sinfonia del mare - Sinfonia breve
Sinfonia del mare, "Symphony No. 3": I. Lento
Sinfonia del mare, "Symphony No. 3": II. Allegro
Sinfonia del mare, "Symphony No. 3": III. Lento
Sinfonia del mare, "Symphony No. 3": IV. Allegro
Sinfonia del mare, "Symphony No. 3": V. Tempo allegro
Pater Cælestis - Fadern i himlen / Terra Mater - Moder Jord / Vox Humana - Människans stämma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598d499df6ddf1003bf1604f961686a56e67348359cc180d97bcb5f1f4eec1de. 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/SE2FO1000130.
Sanger vid havet (Songs by the Sea): I. Ute i skaren [Among the Rocks] [Text: Ebba Lindqvist]
Sanger vid havet (Songs by the Sea): II. Nocturne [Text: Edith Sodergran]
Sanger vid havet (Songs by the Sea): III. Havets visa [Sea Song] [Text: Hjalmar Gullberg]
Sanger vid havet (Songs by the Sea): IV. Jag har ett hem vid havet [I Have a Home on the Sea-side] [Text: Ragnar Jandel]
Sanger vid havet (Songs by the Sea): V. Jag vantar manen [I am Awaiting the Moon] [Text: Hjalmar Gullberg]
Pa reveln (On the Spit): I. Pa reveln [On the Reef] [Text: Anders Osterling]
Pa reveln (On the Spit): II. Otrolig dag [Incredible Day] [Text: Einar Malm]
Pa reveln (On the Spit): III. Havet sjunger [the Sea Sings] [Text: Ebba Lindqvist]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c269c093521396c4464c9b0c23a8c4027d254bdf2d49ee1830373a65b055025. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEAGA8702010.
På reveln (On The Reef): 1. På reveln (On The Reef)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df8a89a51fe42dd5a659ebeb3893501cde9c482386ec2ef5d1b7384451db4b6. 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/DEN960232306.
På reveln (On The Reef): 2. Otrolig dag (Amazing Day)
På reveln (On The Reef): 3. Havet sjunger (The Song Of The Sea)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a57d3d2dd2767301d46f3c56e0bbb87d25f17763e48ec0379bf7bc6ccec25e1. 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/DEN960232308.
Sanger vid havet: I. Out on the Skerries
In Flanders' Fields Vol. 40: Richard Wagner, Gösta Nystroem and August de Boeck