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 0x1093c531440b0bcb4c3f10bba2ec8ff5e6a11c2753be24ab9dd872d068ff8588. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/84bb83f7-29e1-4a6a-8eb1-f396dab7bc06.json and https://artists.proofprofile.net/proofs/artist/84bb83f7-29e1-4a6a-8eb1-f396dab7bc06.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Swan Lake, Op. 20: X. Scene - Swan Theme. Moderato
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 0x8ae1289ca0be7c306eda37b23e3dc8715435533398adf34ba79006b14c005a91. 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/NLY331607177.
Swan Lake, Op. 20: XIII. Dance of the Little Swans. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa310a88ba05711b8ba2fc24d76b0071b42d31ef63a3b80199ff7302ae4fd80c5. 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/NLY331607178.
Swan Lake, Op. 20: XX. Hungarian Dance. Csárdás (Moderato assai - Allegro moderato - Vivace)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad63f679e61ee39d5041079d60abaef007eb30e7690b9e63071729a8c9a51a7. 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/NLY331607180.
Swan Lake, Op. 20: XXI. Spanish Dance. Allegro non troppo. Tempo di bolero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe176162c7da8fb316a42cba1977ee168a7255a7f5f702556d1518c2969610ced. 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/NLY331607181.
Sleeping Beauty, Op. 66: The Vision. No. 17 Panorama. Andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73471da9f597f9db7e1fcaa9796e8cf82d305c07db313237ec5878fae19e016. 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/NLY331607184.
Sleeping Beauty, Op. 66: The Wedding. No. 24 Pas de caractère. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f15d39fad34b0ed24235193a431211a75d9cb4deea686506ec155bce873a0e8. 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/NLY331607185.
Sleeping Beauty, Op. 66: The Wedding. No. 28 Pas de deux. Adagio. Andante non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8938e4c2d82b7d122d8b2c5af2481e623d4bba7710331f1723063b6832c2722f. 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/NLY331607186.
Sleeping Beauty, Op. 66: The Wedding: No. 30 Finale. Alegro brillante. Tempo di mazurka
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a052d0cdc04b9b898b3a7739a39a2ddf6140fd8040586030cb84c3b79b2d01e. 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/NLY331607188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2b4a1722f291a380a6ae12a5ff9de5b758bb78dbc1200d68709183d126794a. 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/NLY331607190.
The Nutcracker, Op. 71: No. 12 Divertissement. Coffee. Arabian Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead6b6bcaa9e9532190968186c56ed3d9800f3d58b2818ad2ba6d5d9ecebcf27. 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/NLY331607191.
The Nutcracker, Op. 71: No. 12 Divertissement. Dance of the Reed Pipes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63184e703cd03de9c648ed1c6220c9b6d7f9b06fd40257ee87a8c22b9a6b3ccc. 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/NLY331607194.
The Nutcracker, Op. 71: No. 13 Waltz of the Flowers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d570419ea8ad50b281f8890b1509cb86ee3b6ddcbef62029a6a3556a5bb481c. 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/NLY331607196.
The Stone Flower, Suite No. 1, Op. 126: III. Dance of the Young Girls
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f49d90ae30431234b200d2b33b0bb9be2840aa99976a23a8237279a3d0e3e31. 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/NLY331607207.
The Stone Flower, Suite No. 1, Op. 126: V. Wedding Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e72dae65a76915948c5c5c173eb0c78e5992e4df672754e57e689668e8e5b3. 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/NLY331607209.
Romeo and Juliet, Suite No. 2, Op. 64ter: I. Montagues and Capulets
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af3e694921095a043ae0d92ba6c19a794779e3724528125de43667f585877a9. 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/NLY331607210.
Romeo and Juliet, Suite No. 2, Op. 64ter: V. Romeo and Juliet Before Parting
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa96de9f423c1b61e0be48dea91436f8218ebe89af16e08ef848b378eb5bf17f. 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/NLY331607214.
Cinderella, Suite No. 1, Op. 107: I. Cinderella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc16a1953a5ac1c247c9d7e3b58fdab6d321aaf930ed15fe9b21920dcd8a575. 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/NLY331607197.
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
Cinderella, Suite No. 1, Op. 107: II. Pas de châle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9336787d2713d12fcf4fc18ef4868186c4e7c1886aa8214c0940ccca1c89ca8. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/NLY331607198.
Cinderella, Suite No. 1, Op. 107: VII. Cinderella's Waltz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da4b48c68acdc604cd18e37a1b8e1f73728f7805c829f9ed2300dca587b6fd0. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/NLY331607203.
Romeo and Juliet, Suite No. 2, Op. 64ter: III. Friar Laurence
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdacd3e4a73b94e31fa1e56e1235fab127639a008af01758db418a07250a675f. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/NLY331607212.