Kirov Opera and Ballet Theatre Symphony Orchestra
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 0x508f739ed8863afd24ab00799e620f177c3826b97b17532e225f894f63cf485f. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3ffec663-31d5-4c61-b8ae-018b5ffee7c5.json and https://artists.proofprofile.net/proofs/artist/3ffec663-31d5-4c61-b8ae-018b5ffee7c5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Classical Music to bring on a desert island
Tchaikovsky: Swan Lake, Op. 20 & Nutcracker, Op. 71
Swan Lake, Act II, Op. 20, TH 12: No. 13, Dances of the Swans, Pt 4. Allegro moderato "Dance of the Little Swans"
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 0x38a1457263a56a74aebf820df5c61556548d235b87c5a31861b5e9221cd9c326. 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/FR3KD1505010.
Swan Lake, Act II, Op. 20, TH 12: No. 10, Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee21cac0c906ad028e7265484756d5db9c917ea5ab69bf17e54d082b47bd078. 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/FR3KD1505007.
Swan Lake, Act I, Op. 20, TH 12: No. 2, Waltz. Tempo di valse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed194c627e2b406ab9f34250596065ef9644e7a1e8d4eb3d2922c3906c45ad48. 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/FR3KD1505008.
Piano Sonata No. 11 in A Major, K. 331: III. Alla turca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7bb46e735db895a021fde7e9620b1be9e601627226d7b0ad354e14f6391bbc5. 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/FR59R1509549.
Goldberg-Variationen, BWV 988: Variation No. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6313a99afe070987ba66409eab3015c9c1760e8fea9bc42bd29371051554100f. 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/FR3KD1504915.
Piano Sonata No. 3, Op. 2 No. 3: III. Scherzo. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4719228cc62377f303ec8b67059b7470c76d58b6d76fecc47fb73698a7f8f5. 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/FR3KD1505091.
Piano Sonata No. 14, Op. 27 No. 2 "Moonlight": II. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb17f6d5c898dd6aabb465845bac44036faa534faf6fac62393b4e2d5b7e9aa7. 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/FR3KD1505094.
Octet in F Major, Op. 166, D. 803: IV. Andante - Un poco più mosso - Più lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2baa8c91455003bddf86a6c2c99ef0f9fe8c91100cb042022aa3391ae6b9ad5. 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/FR10S1529101.
The Nutcracker, Act II, Scene 3, Op. 71, TH 14: No. 12e, Danses des mirlitons. Andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0fee90084733510b6d708d746c8caf623b6debffeda818f8637aa823433609. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/FR3KD1505020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4899f654d556f3ee8bfc5e8051486bdd92179d4f49418305b814646d14888bc. 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/FR3KD1505973.
The Nutcracker, Act II, Scene 3, Op. 71, TH 14: No. 14, Variation No. 2. Andante ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc517fa25d4acb622c31604d27bb3dd23ff02b73d801d66159fc332ccb72fbfd3. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FR3KD1505022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99c83c2b3a6a35be21ea826130e49ada1cb86ddff99fd725a0bc0a8e18d9b31. 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/FR3KD1504913.
Six épigraphes antiques, L. 131: No. 1, Pour invoquer Pan, dieu du vent d'été
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d0985568f664faf1ce40fcd77ad6c66ba3aca804930d9939ceca9e5c9764c6. 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/FR3KD1200501.
Ma mère l'Oye, M. 60: No. 1, Pavane de la belle au bois dormant. Lent
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df5df3deaadd5499b679f990b6f0f00e4307cbf200579e09ca3ecd1275a277f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR3KD1302086.
Piano Sonata No. 14, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd2bdb6500dcb71b51d4db7df6b820b3f286dcffeec0bed9e1858da0d04fc66. 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/FR59R1506020.
Schwanengesang, S. 560: No. 7 in D Minor, Ständchen - After Franz Schubert's Schwanengesang, D. 957
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7699487d053c71b8e1b83f281e6ee529b9fffc9e35581e8411b2ae2bdee7d34. 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/FR3KD1402643.
Eine kleine Nachtmusik, K. 525: III. Menuetto. Allegretto
Ochestre de chambre tchécoslovaque de Prague
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd3730e8a00d14a70c2baf0f5e8aac644bc7b508b3cde574e2332e451055dbe. 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/FR10S1542346.
Symphonie No. 9 in D Minor, Op. 125: II. Molto vivace - Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0353ec7fa95fd3e31f4503cad1ce72ceb97533e7df4006a5c809db4a068a79c. 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/FR6V80528629.
Symphonie No. 9 in D Minor, Op. 125: III. Adagio molto e cantabile - Andante moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ead0ce6724cc65aa84557b4c11d2e3a76fdcb47e78ee06177e033a39601089a. 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/FR6V80528630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed194c627e2b406ab9f34250596065ef9644e7a1e8d4eb3d2922c3906c45ad48. 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/FR3KD1505008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee21cac0c906ad028e7265484756d5db9c917ea5ab69bf17e54d082b47bd078. 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/FR3KD1505007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed194c627e2b406ab9f34250596065ef9644e7a1e8d4eb3d2922c3906c45ad48. 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/FR3KD1505008.
Swan Lake, Act III, Op. 20, TH 12: No. 20, Pt. 2, Russian Dance. Moderato - Andate simplice - Allegro vivo - Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5b7f67132b2ce4a929a6c62b53c9c6c6323380b24a76b66b4bfb1d1d811e24. 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/FR3KD1505013.
Le songe d'une nuit d'été (Marche nuptiale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b1ac36a697d71db6dd9773241e71c03f66101d5c5bc96cf973163e2131ddb6. 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/FR6V89803099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a155dc7a33ea5519a07356a9230f88758a65c9413a0d6718cea35f964a4d21e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR6V80889504.
Sports Music (Hotels and Resorts Collection)