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 0xfe2f678ceda9be7bc6cf67a4dbe3f72e592a6bc7096f08ab65279d633cd5de95. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8129c0dd-8327-4ce5-ada6-55c65302c959.json and https://artists.proofprofile.net/proofs/artist/8129c0dd-8327-4ce5-ada6-55c65302c959.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rossini: 6 Sonate a Quattro - Prélude, Thème et Variations & Donizetti: Larghetto, Tema e Variazioni
Meneghini - Concertoni a quattro parti (Transr. for Orchestra by Giulio Meneghini)
Bottesini: Music for Violin, Double-Bass & String Orchestra
Nuova orchestra da camera Ferruccio Busoni
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 0xef87a2a89d9485ca77c8739c7724b536edf7ac59bd27c2db7f38bd249c5a88e4. 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/NLY332303482.
Andante sostenuto in B Minor (To his Friend Giulio Ricordi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428d3ab383c377d5007a1852dcacfdeb657ad388beb9ef361f18545adb2fa678. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/NLY332303480.
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 0xbe1f4e4019043718de6cb440bc44a167f4085efbb4780d37bcd8560cca8692d2. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/NLY332303481.
Mozart: Adagio & Fugue in C Minor, K. 546 (Version for String Orchestra), Sinfonia concertante in E-Flat Major, K. 364 & Symphony No. 27 in G Major, K. 199
Adagio & Fugue in C Minor, K. 546 (Version for String Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45098fdcfc7381ff2ea823fab46af702d40f2e963284e57d7b0f863adbe0dd4. 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/ITN322321324.
Sinfonia concertante in E-Flat Major, K. 364: I. Allegro maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5f7645cef6e5243c3be03356ad7d44e0f363d7bf84f660627625fa27a744f1. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/ITN322321325.
Viotti: Violin Concerto No.22; Cherubini: Symphony in D
Ghedini: Musica da Concerto, Musica Concertante, Hindemith: Fünf Stücke, Op. 44 No.4
Wolf-Ferrari: Idillio Concertino, Serenata, Suite Concertino
Idyll: Serenades by Janácek, Elgar, Kalinnikov
Rolla: Music for Viola and Ensemble 2 Sinfonias
Andrea Luchesi: Sinfonie Inedite - The Unpublished Symphonies
Andrea Luchesi: Sinfonie, Sonata, Concerto (Motta di Livenza, 1741 - Bonn, 1801)
Morricone, E & A / Arr Cacciola: Nuovo Cinema Paradiso: Love Theme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eda937be9bac55e9ab800476ca7d7582899d99227df83a7df40a98fcaecbdbd. 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/GBAYC1602330.
Paganini : 24 Caprices, Op. 1: No. 24 in A Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2286910507e6794b95eff69bab6f7645b3f8c2d48ef77c361f56d98231f4678. 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/GBAYC1602346.
Paganini / Arr Cacciola: Violin Concerto No. 2 in B Minor, Op. 7, "La Campanella": III. Rondo "La Campanella"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f7c0e6bd5fdd7ef6a6c39070c17231932932ad621d26fba80059cf4c2fc450. 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/GBAYC1602337.
Piovani / Arr Cacciola: La vita e bella: Main Theme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7177a3aa54f70bd95f3232357689f5c1bad1770b2469d02c47dbdb848676d5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBAYC1602331.
Sarasate / Arr Cacciola: Carmen Concert Fantasy, Op. 25: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5adee444ecc1ac28456eb53e84f9f2dd4b682aa6962bb75983f05f50ea038223. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/GBAYC1602340.
Sarasate / Arr Cacciola: Carmen Concert Fantasy, Op. 25: II. Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b4ec916b4a8f391485d44a6bdd3656245cefde72552715ed8b99b66838e246. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/GBAYC1602341.
Vivaldi / Arr Cacciola: Le quattro stagioni (The Four Seasons), Violin Concerto in F Minor Op. 8 No. 4, RV 297, "Winter": II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5525946a009ad9cfbaeaf27609342cc9db1f841459a0e824544e6ffdd4df17c8. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/GBAYC1602345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bb36162facd830fa7bd970d937dd503eed53a082c9f91c38816e918a8fc1e5. 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/FRZ118603476.
Piano Concerto No. 2 in C Minor, Op. 18: II. Adagio sostenuto
Orchestre De La Société Des Concerts Du Conservatoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3caa7946bf1328e9a5aaa9cb8ebe84fd6e4482e240242059b00a77cb344ebb9. 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/FRZ111700468.
Le Carnaval des animaux, R. 125 "Carnival of the Animals": VII. Aquarium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa0401e394fccc4cc3eadfbc3293647177c215375ce677d31eb7d5f64503342. 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/GBAYC8806050.
Préludes, Op. 28: No. 15, Sostenuto in D-Flat Major "Raindrop"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711310e3a3bdc4574916679af4962c7ea0ddf0579e9e0a32496abffc25878e7d. 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/GBAYC9101695.
Pray for the Peace of Gerusalem - Nigun di solitudine e abbandono