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 0xf6a406b968941fef9b29d757be65ccb8a14cc53ad962fe8783d9da441c6ae6f8. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/575eef41-34ed-4602-8e63-69d289223cd6.json and https://artists.proofprofile.net/proofs/artist/575eef41-34ed-4602-8e63-69d289223cd6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Three Revolutionary Romantic Piano Sonatas
Piano Sonata in G Minor, V.105: III. Fugue 2
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 0xa20f5332ef5bc86876b1fc6b0e2ad9c8fc69a0f9f10bb87c43c35cacfd814d12. 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/NLY332301382.
Piano Sonata in G Minor, V.105: V. Finale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206ad1617ec6a44009be86fbe65abf3c0a31aff0a970eadd041f9de74cfeb233. 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/NLY332301384.
Hungarian Rhapsodies No. 2 in C-Sharp Minor, S.244/2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ab760e838dfabce5a266df6da75b3870601ef2eb0c3c94e34cb442cab78d2b. 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/NLY331705195.
Hungarian Rhapsodies No. 4 in E-Flat Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19f0136facc3ed048d4638cdb2ff62d0cf8d85fd42a5d6be341c26372063690. 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/NLY331705197.
Hungarian Rhapsodies No. 14 in F Minor, S.244/14
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2748c5ea2e37479eb9052ab6982b26f217b021bda0f4180c6b68cf8c80657060. 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/NLY331705207.
Années de pèlerinage I, S.160: VIII. Le mal du pays
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ef997995a2d5abdb897f38f0227bb4f1c346243d26ed4cced56deaee97a3a8. 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/NLY331705220.
Études d'exécution transcendante, S.139: IV. Mazeppa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49d2df4d26b6fc9ac64f585042726e2c8cda096078a80d7ecea2c8cd348b06d. 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/NLY331705238.
Rarieties of Piano Music at "Schloss vor Husum" from the 2019 Festival (Live)
Rarities of Piano Music at the "Schloss vor Husum" from the 2014 Festival
French Suite No. 5 in G Major, BWV 816: I. Allemande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018d0c51a00bf5e8e096dcd70f1faf24c7ec99f5700dc3250705ff5c5ffe3d34. 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/NLY331805757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205a0191dfce1d74170439872c72babd1848c0d112ed45e1bedcc8126532cfb6. 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/NLY331406010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650a941f52a18ef4b29bd93c6c9071900340a28a1ea5d93ba542907e5bb471a0. 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/NLY332401925.
Il Était Un P'tit Homme, Rondoletto, Op. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad0c810414d1e9b1247ede21358c5ae3a1d3062299debdfbe7aa8afdc0ba3ec. 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/NLY332401926.
Ah! Segnata È La Mia Sorte De L'opéra Anna Bolena De Donizetti, Varié, Op. 16 No. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b3ca10ebebe380e4780cff956722efcf2934be2127e89b2214c001ff8aaa3b. 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/NLY332401929.
Air Des Capulets Et Des Montaigus De Bellini, (La Tremenda Ultrice Spada), Varié, Op. 16 No. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d46bd25b523d60493a5382e083d6921d5e9e5f4e3293d76cc1f4a83face75e6. 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/NLY332401930.
Variations Quasi Fantaisie Sur Une Barcarolle Napolitaine, Op. 16 No. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714be0d8a1d3dbc239f1e5397e576681adda1dd034c060e9f57c1d338a54d333. 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/NLY332401931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0acecebd4716527445914d29c57af6f52682cb6e894b2a3602a90aa0fefaf39f. 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/NLY332401932.
Variations Sur Un Thème De Steibelt, Op. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3ae13b482335b0173539b931d084c509636dbabaadf7604fd7d4e2bb6c5ac4. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/NLY332401924.
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
Rondo Brillant Pour Piano Et Cordes Ad Libitum, Op. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f21a96b34ff7752af4d1ff38cd8ab5f535217c85d5de61b3232d6d0d320ff6. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NLY332401927.
Variations À La Vielle Sur L'air Chanté Par Mme. Persiani Dans L'elisir D'amore De G. Donizetti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda90d150344c7555f9a9dd887c27faf832504b15978b96bd2f15de3c9340771e. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/NLY332401928.
Liszt: Weihnachtsbaum & Two Movements from Christus
3 Petites fantaisies, Op. 41: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10b8c4ddcd905cc8ebe46a3f227f3da516d76c875a26df5f2c66ef99a4b2d28. 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/NLY332302320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9543b10e808ac95cab6e4ebb828ef6900f6d5596d109e835b494f1e968364c6. 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/NLY332302304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c62b11613a4a93b8a3ba54524e3d166a434e49af0230631658be7ceab236d3. 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/NLY332202288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8af1b0786e7b224c952ee1248c150f44b989f5551890a4f8db9542c4e515ad6. 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/NLY332202302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2d711cc5737a01fa67100a8cd69ced8f56985f70b34d765bdb046416458ad4. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/NLY332202296.
24 Préludes, Op. 17, Cahier I: II. Allegro Agitato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36fe8dbd25ab4d70995a24e8ef62d93edcba3ce86a20d8505986a50bcf1b3786. 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/NLY332202174.
24 Préludes, Op. 17, Cahier IV: XXII. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a6858e74592936b0ea591b45ed0904fd862f338de6cb03911dbb36241f9dba. 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/NLY332202194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5c7b1caaae5322ad8771a5c3a4cd251faaf1f0f3ac25c1d75690f7328583c2. 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/NLY332202198.
Alkan: 11 Pièces dans le style religieux, Op. 72, Étude Alla-Barbaro
Alkan: Paraphrases, Marches & Symphonie for Solo Piano, Op. 39
Alkan: Grande Sonate, Op. 33, Trois Morceaux dans le genre Pathétique, Op. 15
Grande sonate, Op. 33: I. 20 ans, Très vite
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1e39e8f4058f937708a9dc09df57cf1911ecdfa85f5b7818502f96f3023dae. 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/NLY331903646.
Grande sonate, Op. 33: II. 30 ans, Quasi-Faust. Assez vite
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23284596db0e344b2a271280990e0c2cb777ab85b73f9e7dc5877cf46587a4e. 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/NLY331903647.
Alkan: 25 Préludes dans les tons majeurs et mineurs, Op. 31
Thalberg: Apothéose & Fantasies on French Operas
12 Études dans tous les tons majeurs, Op. 35: II. Etude No. 2 in D Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50d9cf08942a8afa7f2170fb669d8923fe8ebdd01508466e06a772d5916032b. 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/NLY331703825.
12 Études dans tous les tons majeurs, Op. 35: V. Etude No. 5 in F Major. Allegro barbaro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a41258d46424b3f4be1b89a429bb390cdaabf09d1a231dfafe2f1218f16f93. 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/NLY331703828.
12 Études dans tous les tons majeurs, Op. 35: VI. Etude No. 6 in B-Flat Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929a236657fea23e034509d38de8f25400a9c77c6a8831a3588cadc97c5385d2. 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/NLY331703829.
12 Études dans tous les tons majeurs, Op. 35: III. Etude No. 3 in G Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59af11cc0a0b1d14f0c5ee312619d95f6359fdb813ff6a184b7d3c5d184ef58. 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/NLY331703826.
12 Études dans tous les tons majeurs, Op. 35: IV. Etude No. 4 in C Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a1b4161bce53d0b40207844619e578e32ca553f92d68cdc886e2b87fb0add0. 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/NLY331703827.
12 Études dans tous les tons majeurs, Op. 35: VII. Etude No. 7 in E-Flat Major. L'incendie au village voisin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873020b93f347cf5d1e2828591124212ebd8884a01b77965a39c1796f1e4fbaa. 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/NLY331703830.
12 Études dans tous les tons majeurs, Op. 35: X. Etude No. 10 in G-Flat Major. Chant d'amour - Chant de mort
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd334ac5fe80a17f4463f14d273a3c40d808d6691f18eabf748d5ddf8a61596b1. 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/NLY331703833.
12 Études dans tous les tons majeurs, Op. 35: XI. Etude No. 11 in B Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2314d980c8761c5ebed4c824d04e480a3d8c9ec0ff1f9ed9f22008b8bced6fe8. 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/NLY331703834.
12 Études dans tous les tons majeurs, Op. 35: XII. Etude No. 12 in E Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596d90436edd24d2e338ab6b78198eb8c6994715b88a72b75c202bd9d1f77c95. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLY331703835.
Liszt Hexaméron and Réminiscences of Lucrezia Borgia and Norma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ee80b4a854ef03895cbe9ace9a91497cc2007c90a153e18589a0033c40f562. 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/GBX3U1106484.
Réminiscences de "Lucrezia Borgia" - Grande fantaisie I, S. 400/1: 1ième partie. Trio du seconde acte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe400c96ee4d5dcc4311dd72bcf04eb311558df58c079079aca56cf15fd192bae. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/NLY331705290.
Réminiscences de "Lucrezia Borgia" - Grande fantaisie II, S. 400/2: 2de partie. Chanson à boire - Duo - Finale - 2nd Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd1c163caf0764966a222e1397f26078c54a48afe5d638b60d32fca5cf96d57. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/NLY331705291.