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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7475d16e533193c896f17b96a8901808a17734ce3416b10fdc1ae3f52b13218. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d69bd6a-9d67-4d14-aa25-0473c1a3c931.json and https://artists.proofprofile.net/proofs/artist/3d69bd6a-9d67-4d14-aa25-0473c1a3c931.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sibelius: Lemminkainen in Tuonela (1896 Version) / 3 Pieces / in Memoriam
Kajanus: Finnish Rhapsody, Op. 5 / Sinfonietta, Op. 16 / Kullervo
Sibelius: Music From Timo Koivusalo's Film
Maestoso in C Minor: (Maestoso) in C Minor
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcedc41b4af257a1478638caac4a1cbcfbe1d7cc951a4daca50015342a8e302b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SEAEK0023090.
Violin Sonata in F Major, JS 178: Sonata in F Major for Violin and Piano, JS 178: II. Andante
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Andante festivo, JS 34b (Version for String Orchestra & Timpani)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0bee422999ce5358e4724c5f89c993ef877f906496caf4fabff7f0b8cf85d8. 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/SEAEO0345010.
Spring Song, Op. 16 (Moerato e molto sostenuto)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dbc722ef5427969d56decb5596e7a02bed0267c8a67d8d24b83391994b73598. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/SEAEO0345040.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe960ae0113722d99cf2cc650acd9ecafd07d3203cd884f6c7816b7d850e37a98. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/SEAEO0345080.
Sibelius: Jedermann, Op. 83 / Belshazzar's Feast, Op. 51 / The Countess's Portrait
The Sibelius Edition, Vol. 13: Miscellaneous Works
Orchestral Suite No. 2, Op. 11: IV. Epilogi. Allegro ma non troppo
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Orchestral Suite No. 2, Op. 11: I. Kevään tulo. Allegro molto e cantabile
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Orchestral Suite No. 2, Op. 11: III. Kehtolaulu. Andante semplice
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Poulenc, Prokofiev & Britten: Sinfoniettas
Sinfonietta in F Major, FP 141: I. Allegro con fuoco
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Sibelius: Violin Concerto in D Minor, Op. 47 (Original Version and Final Version)
Violin Concerto in D Minor, Op. 47 (1903-1904 Version): I. Allegro moderato
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Violin Concerto in D Minor, Op. 47 (1905 Version): III. Allegro ma non tanto
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Violin Concerto in D Minor, Op. 47 (1903-1904 Version): II. Adagio di molto
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Violin Concerto in D Minor, Op. 47 (1903-1904 Version): III. Allegro ma non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b10747c3833f96009ebf677c7476eef97ca9cb3deeead30f406213ac4960cee. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/SEAEF9100030.
Violin Concerto in D Minor, Op. 47 (1905 Version): I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee89d306d1346c9c7ea18a7803d2c1009920b1d4eb5256de1ad59c543ce3ced6. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/SEAEF9100040.
Violin Concerto in D Minor, Op. 47 (1905 Version): II. Adagio di molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea273833bbf11b876e71546e742ae04ba8517757efd8b2408d77e565863e4e3. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/SEAEF9100050.
The Sibelius Edition, Vol. 8: Orchestral Works
Sibelius: Karelia / Kuolema / Valse Triste
Karelia, JS 115, Tableau 3 "Narimont, the Duke of Lithuania, Levying Taxes in the Province of Kakisalmi": Intermezzo I
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Karelia, JS 115, Tableau 4 "Karl Knutsson in Viipuri Castle": Ballade
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b690899c87a4d38b9b1d4bd8fe4171d7e94cb57cab1f3ebfd19eced578becfa. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/SEAEJ9715010.
Karelia, JS 115, Tableau 1 "A Karelian Home. News of War"
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Karelia, JS 115, Tableau 2 "The Founding of Viipuri Castle"
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Karelia, JS 115, Tableau 5 "Pontus de la Gardie at the Gates of Kakisalmi in 1580": Intermezzo II
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Porilaisten marssi: Presidential March (Arr. R. Kajanus)
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Sibelius: Karelia Suite / Kung Kristian Ii / Pelleas Och Melisande
King Kristian II, Op. 27: Overture: Elegy
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Pelleas and Melisande, JS 147, No. 5: Melodrama in Act III Scene 4, "Pastorale"
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Musiikkia Sanomalehdistoön päivien juhlanäytäntöön, JS 137: Preludio
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Song of the Athenians, Op. 31, No. 3: Atenarnes sang (Song of the Athenians), Op. 31, No. 3
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Sibelius: Swan of Tuonela (The) / Tapiola
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Jarnefelt: Symphonic Fantasy / Suite in E flat major / Serenade / Berceuse, "Lullaby"
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Suite in E-Flat Major: II. Adagio quasi andante
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9209de07a76396feab3664f41fef2a4863c5c537cb3f55cd93dbd94ce7de87cd. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/SEAER1053130.
Sibelius: Snofrid / Cantata for the Coronation of Nicholas Ii / Rakastava
Rakastava, Op. 14: III. Hyvää iltaa - Jaa hyvästi
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Andante festivo, JS 34b (Version for string orchestra and timpani)
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Tali Ihantala (Original Motion Picture Soundtrack)