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 0x3efc8e103fa3573b2d74d146f4064757dd7df23e497475b2c870c53ba4f5934c. Chain 2 (Bitcoin): anchored in block 953847 (2026-06-15T22:51:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/018748ef-7ab7-422f-9985-44163bfee204.json and https://artists.proofprofile.net/proofs/artist/018748ef-7ab7-422f-9985-44163bfee204.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x663c1a83d434342e75f8c846a0736a92cc32c651504d836d0cc55f4cad9d9b85. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEWDL0535401.
The Nutcracker, Op. 71, Act I: I. Scene, The Christmas Tree
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c9a6cc5e8b74de3965fe17e919deb3380f1b3630e8f47efe8a89423df8159f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEWDL0535402.
The Nutcracker, Op. 71, Act I: II. March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb5cafffe3b5c3743e8d8e13983ffc771841cbac3b6320b8df916053eb01143. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SEWDL0535403.
The Nutcracker, Op. 71, Act I: III. The Children's Galop - Entrance of the Parents
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The Nutcracker, Op. 71, Act I: IV. Scene, Arrival of Drosselmeyer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dfaf486427f72a20e272db89f19d76b09d6e5bb1dec16326a039bd21210cd24. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEWDL0535405.
The Nutcracker, Op. 71, Act I: VI. Scene, Dance of the Grandfathers (attacca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb43d5e076da3afb047d9d3f95ab9fc33a8451e3ced0d326f76d5e16bb2f8217. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEWDL0535406.
The Nutcracker, Op. 71, Act I: VII. Scene, Clara and the Nutcracker
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e50a40977defcc25863184bb13fa5eaba513054b6b425b6cf9cf75313c1634. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEWDL0535407.
The Nutcracker, Op. 71, Act I: VIII. Scene, The Nutcracker Battles the Mouse King's Army
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The Nutcracker, Op. 71, Act I: VIII. Scene, A Pine Forest in Winter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb69368be9ce2f8f03da9d0f5dd27d921acd7147326170e43a413ec0898009f4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEWDL0535409.
The Nutcracker, Op. 71, Act I: IX. Waltz of the Snowflakes
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The Nutcracker, Op. 71, Act II: XI. Scene, The Magic Castle in the Land of Sweets
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc06ac19f2633343c9372e9e6e7530c726ae8acaa66de811e09688ae0235f08. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/SEWDL0535411.
The Nutcracker, Op. 71, Act II: XII. Scene, Clara and Nutcracker Prince
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The Nutcracker, Op. 71, Act II: XIIa. Chocolate (Spanish Dance)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b424d9f2b82a6e36595ecf6768194fd3cf25faed2a6c70e8cd711eaebac3ed5. 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/SEWDL0535413.
The Nutcracker, Op. 71, Act II: XIIb. Coffee (Arabic Dance)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc831042461d02d5e5b07c4583818cfb8985e290d05ffc3f1885baafc01bf2d. 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/SEWDL0535414.
The Nutcracker, Op. 71, Act II: XIIc. Tea (Chinese Dance)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f335cd9d06687cba2c1476eb5434c85fa50d9ca14c27e3cd85f0baed1e3d79. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/SEWDL0535415.
The Nutcracker, Op. 71, Act II: XIId. Trepak (Russian Dance)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394dd2f67ad66928073e98ceb90026651b97a840cbd34937ad225fb70958f870. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEWDL0535416.
The Nutcracker, Op. 71, Act II: XIIe. Dance of the Reed Pipes
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The Nutcracker, Op. 71, Act II: XIIf. Mother Ginger and the Polichinelles
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The Nutcracker, Op. 71, Act II: XIII. Waltz of the Flowers
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The Nutcracker, Op. 71, Act II: XVa. Pas de deux, Intrada
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The Nutcracker, Op. 71, Act II: XVb. Var. 1: Tempo di tarantella
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The Nutcracker, Op. 71, Act II: XIVc. Var. 2, Dance of the Sugar-Plum Fairy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10a82d71c9bce860bb7d48339bde1d70574282baf364166c750dea3a8ee9a4e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEWDL0535422.
The Nutcracker, Op. 71, Act II: XIVd. Coda
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The Nutcracker, Op. 71, Act II: XVI. Final Waltz and Apotheosis
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The 99 Most Essential Christmas Masterpieces
12 Études, Op. 25: No. 11 in A Minor, "Winter Wind": Lento - Allegro con brio
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Orchestral Suite No. 3 in D Major, BWV 1068: V. Gigue
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Préludes for Piano (Book 1), L 117: VI. Des pas sur la neige (Footsteps in the Snow): Triste et lent
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The Snow Maiden, Suite: I. Introduction "Le beau printemps"
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025e652a8b5c0a028613a5a9cb47d89a4635e2bd2cc2a4e2055533d2ebf754d0. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/SEWDL9750019.
Swan Lake, Op. 20a: No. 3, Dance of the Swans
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The 50 Most Essential Christmas Masterpieces
The 50 Greatest Classical Christmas Pieces
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F. Poulenc: Gloria FP177 - F. Poulenc: Konzert für Orgel, Streicher und Pauke, FP 93 - J. Rutter: Gloria
Weihnachtsouvertüre über den Choral “Vom Himmel hoch, da komm ich her" in D minor
Les Patineurs Valse (The Skater's Waltz), Op. 183
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Concerto in G Minor for Flute, Bassoon and Strings, RV 439, "La Notte": I. Largo - Presto Fantasmi - Largo - Presto
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Concerto in G Minor for Flute, Bassoon and Strings, RV 439, "La Notte": II. Largo, "Il Sonno"
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An der schönen blauen Donau (On the Beautiful Blue Danube), Op. 314: Waltz
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Frühlingsstimmen (Voices of Spring), Op. 410: Waltz
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Tchaikovsky - 100 Supreme Classical Masterpieces: Rise of the Masters
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Concerto No. 1 in B-Flat Minor for Piano and Orchestra, Op. 23: I. Allegro non troppo e molto maestoso - Allegro con spirito
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Concerto No. 1 in B-Flat Minor for Piano and Orchestra, Op. 23: III. Allegro con fuoco
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Symphony No. 6 in B Minor, Op. 74, "Pathétique": I. Adagio - Allegro non troppo
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Sleigh Ride: Rekirretki (Sleigh Ride) [Live]
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Tchaikovsky: The Nutcracker and Winter Daydreams Symphony - Classical Christmas Edition
Classical Christmas - 50 Weinachtliche Meisterwerke