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 0x9399cc1ea027f66e512fdc00393848a50fd57bffdf02cc3d46bbddd707605d77. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/12e49a9f-d7b7-442b-b24c-df2a0dafbd14.json and https://artists.proofprofile.net/proofs/artist/12e49a9f-d7b7-442b-b24c-df2a0dafbd14.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Traviata, Act I: Brindisi - "Libiamo ne' lieti calici" (Instrumental Version)
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 0x9166d106b6bf020af045b7c2c31e655621096fff62d45fe97aa9b45eb128ef09. 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/US5541404100.
The Magic Flute, K. 620, Act I: Papageno's Aria - "Der Vogelfänger bin ich ja" (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83859e1bd2c04e266a08038127d42ecfee434b0356145724ac8b942f93311671. 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/US5541404108.
Piano Concerto No. 21 in C Major, K. 467 "Elvira Madigan": II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d32f3a37cac40f34a7165bbe264e293d86b0503881cd4ddf5cfbec17f8923db. 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/US5541101001.
The Marriage of Figaro, K. 492: Overture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb74015e8cd7061b91128196070000c95062efe4164c1664a349ad00dee4a25d. 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/US5541101002.
Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6fc7a59a7617f60065fdc939784ea2adf5ffcc36be567cd2ec4ce0ac29f8c2. 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/HKI190563101.
Symphony No. 40 in G Minor, K. 550: I. Molto allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bfb8eaaa341ecb54aea57990fd042e090b48d12972255af27bcdecd526806ff. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/HKI199597004.
Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc356c08013434460981d0bce5edf328a492a724d7ad735ea7e8dd47e37d727c3. 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/HKI199280505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7338f8cb455a89f0df1e6867d5aeec5d459b1ec5a588ee5320eaf496087135a. 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/HKI199793613.
Piano Concerto No. 23 in A Major, K. 488: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543cf7c80e36778f3c88fde8c5e4392179515504c2e8ae098bf5b1991abc3d46. 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/HKI199276902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8dceded1f53de8564a59736c01e1a2bfdc3f74905baacbff6a807e0963cd52. 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/HKI199275608.
Symphony No. 38 in D Major, K. 504, "Prague": III. Finale: Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ef7c9108d1cc501456f794374c220a304ecbfca68581141744d9a844ffb714. 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/HKI199597003.
Peer Gynt Suite No. 1, Op. 46: I. Morning Mood
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77dbc0c87185bfaf3eb6c3ac00fdafc4185c458b26d2c1095923112033707c5. 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/US5541304612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87bae329e18017fe5b364ca746d974e992dec1bed5e03cb811afb51dca6375f6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US5541304615.
Moment Musical No. 3 in F Minor, Op. 94, D. 780
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e8e1b7d5159cde7b2c22c0e0414b6271c3bbb42270493482b00818eb634642. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US5541304617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a764c5041353d8cd53c3aeccd41a1bcfeb2fa964fc562c5bd16f8058cb13fb. 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/US5541304620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9a79886724868a1729a6f037e4b0027e482f5c435df2a1d73b8286fff7564c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US5541304621.
The Marriage of Figaro, K. 492: Cherubin's Song - "Voi Che Sapete" (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a0b8aa4d8deb1adb38e453db79b8323ea9f67fca7fe7836bc30fb0818926ca. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US5541304622.
Impromptu in A-Flat Major, Op. 90: No. 4, D. 899
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd63f8d5485c9f4cdc7ea4d1f2d70e1748d5b2666e0ae00f3773f89ed7457c2a. 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/US5541304623.
Piano Concerto No. 26 in D Major, K. 537, "Coronation": III. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdbae5c3ae0fc68a956e24f5aca03d32a2bee0192815cb59ef99cf8b31a8718. 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/US5541304627.
Music for the Royal Fireworks, HWV 351: V. Menuets I and II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359b7efb3e4805d32f58d2bde34b7dcb0d84a71de964e21f3a811b72aa5ac8ca. 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/US5541304629.
Song Without Words, Op. 67: No. 4 in C Major, "Spinning Song"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26dd531a98bbf1ab29f2e13b938068e98937073a3e0a81421b4a17197a7ae447. 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/US5541304630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9206510d3bdf13c707c559e7cee67a3b8435cf689d63c98341c67cce94fbd318. 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/US5541304631.
Rondo a Capriccio in G Major, Op. 129, "Rage Over a Lost Penny“
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5234143a44ff1c774c983c488d53cace54982709fad3eb883d423d6e062acc. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US5541304632.
The Magic Flute, K. 620, Act II: Papageno‘s Aria (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43367c94ce6fea01ae04d65f193a6feec7e9641fe46798390d31765b845f892b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US5541304633.
Water Music Suite No. 2 in D Major, HWV 349: II. Alla Hornpipe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4a7a7c429d6a0530ce4ad3df588054135f31400efd1f7d4f75c94503313fcf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US5541304634.
Mandolin Concerto in C Major, RV 425: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6fa901d120b703c7fac4119d304a93af5dda45b9f00f044a6352daecda517b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US5541304635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb348b1bef1b254b1854f8c1ff49fb82397b6b133d66e4f736a5bcab1e101052. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US5541304639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561c0346b6a541e541d29c1bcd05e51574b6ba704698d90888eab31ac11419f9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US5541304640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbc8edf6a79150958aec22e984b75e4e79a9c6d26ff8c1940f936b476832136. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US5541304644.
Horn Concerto No. 2 in E-Flat Major, K. 417: III. Rondo - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f1655685c5cf7ada748069fe33fa30a944c7fd59442920af84f02cd3c9552d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US5541304645.
Solomon, HWV 67, Act III: Arrival of the Queen of Sheba
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bad8f75e5e4eb16e3a79989b801be3692d552c79c4268a69909ea9510bc8123. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US5541304647.
Piano Sonata No. 16 in C Major, K. 545, "Sonata Facile": I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80846de9fa615a4ef8efe93b929ac7df0f0615556412a9a83789e6f8a7a352ab. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US5541304649.
Carmen Suite No. 2, Act II: VI. Danse Boheme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f45f790459a3562837bb1370b069e6d8ef39da78e65a41c924fa380d77fa7f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US5541304653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda80c394f4389a9291e3acc029c2711c4a9c99776634a5023e13a09ff40f538c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US5541304656.
Swan Lake, Op. 20, Act II: Scene No. 10, Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167cba80357c99bce787a8cd755b314201576885093d02260d14df3290e464da. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US5541304657.
Waltz No. 1 in E-Flat Major, Op. 18, "Grande Valse Brillante"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b1877ff7d2d1b1a31aa2b3c414ec0c5b8abe4dc60389fe8876d71d5ad43464. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US5541304659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc938dc6b15969cb6b24c31e3ec7968c70c0ed0fb6f3b81d6a41df0ecba8405e9. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/US5541304618.
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
Classical Masterpieces of the Millennium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7905e6a3ab555967d056e41e744ffe61a5237572e85e357f67e01119616da2f3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US5541304492.
String Quintet in E Major, Op. 11 No. 5, G. 275: III. Minuetto "The Celebrated Minuet"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08aa613fdf730319fe4d805c45119cbe48b7a6cb39f09e5cdefdaa5859d8d7da. 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/US5541302513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33e1719185c74cc5a32dd4a08f1840e07cd40cba779ea6411b5e9b9a99729b9. 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/US5541302514.
The Four Seasons - Concerto No. 4 in F Minor, Op. 8, RV 297 "Winter": II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c161f0d1e6468d9779844e7f87eee2ae3cf5f0b3b0eb1837c0d556d1a423e7. 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/US5541302526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bfb8eaaa341ecb54aea57990fd042e090b48d12972255af27bcdecd526806ff. 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/HKI199597004.
Concerto for Flute & Harp in C Major, K. 299: II. Andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5992b999385fefeb30bae7b80262c66b4045beacab2db15051fb3ddf9920e61. 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/HKI190325105.
Michael Haydn: Andromeda e Perseo, P. 25 (Sung in Italian)
Telemann: Der Schulmeister - Cimarosa: Il Maestro di Cappella
Lalo: Symphonie Espagnole - D'Indy: Symphonie Cevenole
Veress: Symphony No. 1 / 4 Danze Transilvane / Clarinet Concerto
Takacs: Miniatures / Piano Concerto / Chant of the Creation
Liszt: Hungarian Rhapsodies Nos. 2, 4 & 6 - Fantasie Uber Ungarische Volksmelodien
Mozart: Symphonies Nos. 35, "Haffner" and 36, "Linz"
Symphony No. 36 in C Major, K. 425 "Linz": III. Menuetto
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Górecki: Symphony No. 2, Op. 31 "Copernican" & Beatus vir, Op. 38
Dvorak, A.: Symphony No. 9, "From the New World" / Romance / Carnival Overture
Liszt: Hungarian Rhapsodies Nos. 2, 4 and 6 / Fantasie Uber Ungarische Volksmelodien / Rakoczi March
Vantus: Golden Coffin (The) / Sound Groups / Ecloga / Reflections / Gemma / Toll / Naenia
Ravel: Piano Concerto in G Major / Piano Concerto for the Left Hand / Introduction Et Allegro
50 Years of Hungaraton (1951-2000): Singers
A Guided Tour of the Classical Era Vol. 3
Fidelio, Op. 72, Act I: Aria and Chorus: Ha! welch ein Augenblick!
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Klavierkonzert Nr. 5 Es-Dur, Op. 73: I. Allegro
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Fidelio, Op. 72: Act I: Finale: O welche Lust, in freier Luft den Atem leicht zu heben!, "Prison Chorus"
Bulgarian National Svetoslav Obretenov Choir
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27, No. 2, "Moonlight": III. Presto agitato
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Symphony No. 3 in E-Flat Major, Op. 55, "Eroica": IV. Finale: Allegro molto
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Bagatelle in A Minor, WoO 59, "Fur Elise"
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Overture to Collin's Coriolan, Op. 62, "Coriolan Overture"
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Piano Sonata No. 8 in C Minor, Op. 13, "Pathetique": II. Adagio cantabile
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Fidelio, Op. 72: Act II: Introduction and Aria: Gott! welch' Dunkel hier!
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Nabucco, Act III: Chorus of the Hebrew Slaves (Instrumental Version)
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Gianni Schicchi: Lauretta's Aria - "O Mio Babbino Caro" (Instrumental Version)
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La Traviata, Act I: Brindisi (Instrumental Version)
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Tannhäuser, WWV 70, Act II: Entry of the Guests (Instrumental Version)
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Rigoletto, Act I: Gilda's Aria - "Caro Nome" (Instrumental Version)
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Turandot, Act III: Calaf's Aria - "Nessun Dorma" (Instrumental Version)
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La Traviata, Act II: Germont's Aria - "Di Provenza" (Instrumental Version)
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Madama Butterfly, Act II: Butterfly's Aria - "Un bel di vedremo" (Instrumental Version)
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La Bohème, Act I: Rodolfo's Aria - "Che gelida manina" (Instrumental Version)
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