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 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 0x156e89bb7995b073e0fbdfb14b71c9df855ab4677bbec5d59a33d91155dcbbf7. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00f23f08-d097-4bff-ae5e-4583c724d4b5.json and https://artists.proofprofile.net/proofs/artist/00f23f08-d097-4bff-ae5e-4583c724d4b5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Uplifting Classical - Music to energize your mood
Cavalleria rusticana: "Mamma, quel vino è generoso"
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 0x8764f976a0c55c68f9214ac82aeaf95a078fb082447e03cebe801624265fb398. 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/GBF077612870.
Luisa Miller, Act II: Oh! Fede negar potessi - Quando le sere al placido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddad16bee88f6c790d59e7209865e454a89af4afb09deec854fd4bad14c80a00. 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/GBF076810181.
La fanciulla del West, Act III: Ch'ella mi creda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8712bb1c0f1c76201291e0ab4a05022a201801f4a9281f7734595e197377c6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBF077900160.
La traviata / Act 2: "Lunge da lei...De' miei bollenti spiriti"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a50fbe8b247dc5ca271865fcf7f60c7d09c3aea71dc3804dff2c8927f45ab47. 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/GBF077913920.
Romeo and Juliet, Op. 64, Act I: XIII. Dance of The Knights
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac1b8da851b455ad5609c9073b55f4bfaee8da750e6d9e6490eaf36e83823ff. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBQRF1343012.
The Greatest Classical Collection Ever: 222 All Time Favorite Classics
Top 100 Romantic Classics: Classical Music for Lovers
Top 100 Power Classics: The Most Dynamic Classical Music of All Time
Green Edition - Strauss II: Pleasure Train, Op. 281
Los Grandes de la Musica Clasica - Johann Strauss Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665f11919e6692f212740902fc79c1214629c1b0f80093284964d62b8f0eb90f. 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/QM6MZ1517459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2155f274095c80f06d7cbcaf7ab0b7b104dee83eccfe44c4e53df378462482e. 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/USL5V7620401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa3bc8af9859082036f76ac9f63f8699e01719c0a3b39396ee9fc62186a17d7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USL5V7620402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8873c4add4ebbea975207edaf9fcccb3a6590b568d6934aec5f0f2ac410fc487. 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/USL5V7620403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654a7d4ee53739726458f73786de3573283a0af1da4cc6cbde6340ed63176244. 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/USL5V7620404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55348a1e70bc81dec61f29ae5145c34fd2afb81be40fcc2d6b0bd67741aa0395. 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/USL5V7620405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe634508ab1ae59d3be7ad146c028e6d973b43bbe4c0a3e5c6363dde4dd8139f3. 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/USL5V7620406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9987de20e770f8a4e9d089120c6b4f78b422652979aa5088b6ff859d4a9c8e9d. 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/USL5V7620407.
The Beautiful Blue Danube, Waltz, Op. 314
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523ace05c5b2093d2435bdfba6420cf10dbacf7a9f454727a58ed217c3bb2af1. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CAM460770127.
Classical Music Featured In James Bond Films
Wine, Women and Song ("Wein, Weib und Gesang"), Waltz, Op. 333
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535cc39fce42691fdd80bf49ba5422a61c8e67c554c84034e998943ee54cc36b. 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/DEA580800340.
The Four Seasons, Autumn, Op. 8/3: III. Allegro (La caccia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e96a1670c1bdab22b1a6120b01e8102c62ff328b2cc3df2a0b2d9580bc9dd87. 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/DEA580600118.
Hannibal Soundtrack (Music Inspired by the TV Series)
Green Edition - Strauss II: Perpetuum mobile, Op. 257
Green Edition - Strauss II: "Voices of Spring" Op. 410
Green Edition - Strauss II: "Artist's Life" Op. 316
Classical Selection, Johann Strauss II: Waltzes
Geschichten Aus Dem Wienerwald, Op. 325 "Tales from the Vienna Woods"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf140056ba31e332f523379ac0dcea5de4db2ee38874b4822456673e907f2afaf. 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/DE0851510127.
Aquellos Maravillos Años... de Música Inolvidable
Music For The Millions Vol. 18 - Johann Strauss
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8609dd1ce7d8deabd23c612deb07f019aa5e1e9e942b2a6b73e96e4cd6c2bd8. 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/USV351428799.
William Tell / Act 4: "Ah.. non mi lasciar, o speme di vendetta" - "O muto asil del pianto"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735aa00aebeb2e8b8b7ce978e61513cedbb5175f9e59752d92d5b05573546c77. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBF076910131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bcc144ad48092c6f861175e54ba6da48b88c6ebded360ed6edd33da42272de5. 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/GBF076910132.
Mefistofele / Epilogue: "Ogni mortal mister..Giunto sul passo estremo"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d95bfbee529fbf49b6a7582132bc87d8d934671b4a9d8747a1590b84b52fff. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBF076910134.
Maristella / Act 1: "Io conosco un giardino"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93cd8e386699206064f93ca545f5ac78aea49aa38cf0cb03dac070a27ccacc68. 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/GBF076910138.
Top 200 Classics – the Very Best of Classical Music
Royal Wedding Music - 50 Fanfares, Marches and Classical Favorites
The Marriage Of Figaro (Le Nozze Di Figaro): Overture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb963dafc6761550cadc1b75f5abccd1a6721977fc43d48d039b81a954ee6b6. 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/US4R31016012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542616c6176b26a1d1067270c5951626b2f802fc510dbd81dc8e521d0f9d093b. 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/CAM460670231.
Suite For Orchestra No.3 In D Major, BWV 1068: Air
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbe332775d248cb0ee38c9c63eec7940cebe5e33b0c265c8469f9cbd12fd85f. 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/DEBL60707356.
Relaxing Classical Music to Help You Study