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 0x1c57ca09592b815c188a5cb1f84e8b93aa355d5dfde92f19d63444fa4d06e6be. Chain 2 (Bitcoin): anchored in block 953896 (2026-06-16T06:05:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ee29a90-789a-4fd0-8b12-b4cd01d3bb94.json and https://artists.proofprofile.net/proofs/artist/0ee29a90-789a-4fd0-8b12-b4cd01d3bb94.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 0xd2705ff1ccf7e173f1d1fe611ffbf8532caa26309f8d05703087171802decc5b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBLGL1250056.
Lute Concerto in D Minor (Arr. R. Chiesa): II. Andante
Südwestdeutsches Kammerorchester Pforzheim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea815a8cdcf303e8990b04458162ce5a8d422fa2e4d6dd6bc405f2490441e5e. 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/USZGD9301780.
Dall'Abaco, E.F.: Concerti for Strings - Opp. 2, 6
Concerti a 4 da chiesa in B Minor, Op. 2, No. 8: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76b6fe265eb8caf15817ea40f814f05510c4bf8551a9e2d4a82ae7acc5216a6. 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/ATPD50980075.
Concerti a 4 da chiesa in B Minor, Op. 2, No. 8: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbb6bdbf065e8cadf5758c5b3e0b8d06b12ddea7a317ddc88ee5b86d71c84ea. 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/ATPD50980076.
Concerti a 4 da chiesa in G Minor, Op. 2, No. 5: I. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5226056688fb629c368f2a7e94ad8df31c2c8bd02bc291f4b4e2815eb518f014. 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/ATPD50980078.
Concerti a 4 da chiesa in G Minor, Op. 2, No. 5: II. Allegro e spiritoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd188cfdd586f4fe2025a1ffc5e6f38f9dd84e746cfb9c5710aa4aacfca1eb94. 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/ATPD50980079.
Concerti a 4 da chiesa in G Minor, Op. 2, No. 5: III. Grave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1c40c3a5b8b541d11a0ee5006cb3a76d98847c14594ba4d06cd52c355b643e. 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/ATPD50980080.
Concerti a 4 da chiesa in D Major, Op. 2, No. 6: I. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f91fee88c3287c3aae8b7b188de3795305fde023196291e4f71f19264e248dc. 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/ATPD50980082.
Concerti a 4 da chiesa in D Major, Op. 2, No. 6: III. Allegro e spirito assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc815ed72c603c1619c557066d73446350ff4a9fc48892378667a5975622d7a04. 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/ATPD50980084.
Concerti a 4 da chiesa in B-Flat Major, Op. 2, No. 9: I. Largo andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41798bb8f0ae50ec22fa7961f958be4bba2cd8fc4417d63b7f7a38890537d7f0. 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/ATPD50980085.
Concerti a 4 da chiesa in B-Flat Major, Op. 2, No. 9: III. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd116812e2a0d76e6c1c7f8ac621a7d6d4aa90c67c6ab685c7a429a410fda4305. 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/ATPD50980087.
Concerti a piu istrumenti in F Major, Op. 6, No. 3: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d521be708e32f05a9945cc07b391ba60655520d46447c7801bdfeb8cb16e1e. 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/ATPD50980089.
Concerti a piu istrumenti in F Major, Op. 6, No. 3: III. Allegro e spirito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1304250ae600c8ae213528ddeffce0f52d9a3bbf5104346ad6a44eab98eeb36. 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/ATPD50980091.
Concerti a piu istrumenti in E Major, Op. 6, No. 2: II. Aria cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933e45303d2c3be42445fa086d6b5eb50e2ccfebade327e0956e65a64d219e22. 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/ATPD50980096.
Concerti a piu istrumenti in E Major, Op. 6, No. 2: III. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc138ae01dd0fe49bd97b9a807970d759e34fbc34a50471c8ac93a2e147d791. 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/ATPD50980097.
Concerti a piu istrumenti in F Major, Op. 6, No. 6: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d9d37dd5722b2b4e536a5f92a7eac89573d918d73624fbfb580dde1dda6fe4. 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/ATPD50980098.
Concerti a 4 da chiesa in G Minor, Op. 2, No. 5: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17cd4446254a18623a6caf91a26c80ca3b862c6687fff1a74376d5ccf01923f. 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/ATPD50980081.
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
Haydn - Symphonies - Morning - Noon - Evening
Don Giovanni, K.527 / Act 1: "Là ci darem la mano"
Orchestra Of The National Theatre Prague
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeaddb7c9ac2beaa0340293d67501bb4e67c259d167586cb7fe486e7de3b0067. 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/DEF056730006.
Piano Concerto No. 21 in C Major, K. 467: II. Andante "Elvira Madigan"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b9c3dd41a058beba3a36f404fc424ba6dcae339e479f27d930034e92c4d91b. 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/DEF056100241.
Piano Sonata No. 11 in A Major, K. 331: III. Alla Turca (Allegretto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79803e1f9221061521af261c7d0825f3b6c23abd0ac81766b91938fa6581af9d. 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/DEF058225093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363a1d9cb6a356cf559a000e0719daa1ab05057b04a4cd04d6785ce61d73d71b. 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/DEF057130003.
Die Zauberflöte, K. 620, Act II: No. 14, Der Hölle Rache "Queen of the Night Aria"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a2d9cc39e2097e47d6499a79390f9691a260cc694b7081debceb4c0d5448f0. 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/DEF056430609.
Clarinet Concerto in A Major, K. 622: II. Adagio (Cadenza: Neidich)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6e67a7565a2be896d18984117aa285a248071ef9b7e6afb6f111190b9f4a7f. 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/DEF058702252.
Horn Concerto No. 4 in E-Flat Major, K. 495: III. Rondo. Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095f0ae886c537e515154e4c789b86de0880f134613600816ac2090a4ee46d61. 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/DEF058702273.
Vesperae solennes de Confessore, K. 339: V. Laudate Dominum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4c0fa122d11c0f757c18cdd163e5bc82be76b457179a179478dd4a4279a51b. 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/DEF059303191.
Symphony No. 35 in D Major, K. 385 "Haffner": IV. Finale. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3aa37dadacfec62a44aeb42835bdada1a501be110a4871ca6d707dc53bb2f9c. 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/DEF057600104.
Violin Concerto No. 3 in G Major, K. 216: II. Adagio (Cadenza: Levin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9490026f7e047658deb71feb21c7f626f5b44111ea2030f37c99bf4bccb4596b. 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/DEF058402191.
Exsultate, jubilate, K. 165: IV. Alleluja. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043d4100d4f0eafaf41cbe30c5bf36359a751df3114b115023f69cd05c16904a. 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/DEF059303184.
Vivaldi, Dowland, Torelli & Carulli: Guitar Works
Mozart - Posthorn Serenade - Serenata Notturna
Haydn, M.: Concerto for Organ, Viola and Strings, P. 55 / Symphonies - P. 9, 27, 33
Tchaikovsky: Symphony No. 6 "Pathétique" & Piano Concerto No. 3
Tchaikovsky: Piano Concerto No. 3 in E-Flat Major, Op. Posth. 75
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7b467f549819caac568ee0294e47198b03f4cb5e6be411fda07c5834949b62. 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/GBAYD8400115.
Tchaikovsky: String Quartet No. 1 in D Major, Op. 11: II. Andante cantabile (Arr. Marriner for String Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa2dee01b4a60bb1e8b64e882bd25b6138f85e772af69d868c500bbd9540bb5. 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/GBAYC8000012.
Beethoven: The 5 Piano Concertos & Choral Fantasy
Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28684b9f1d68c48a44c919879a51cbccae1660a0444a93a8f8f92e8893376e67. 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/USZGD9500234.
Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco mosso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5869a01a15bf6d4e67a681d13e0b801c9c0627d2224551b8f4c7d9978b7c47. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USZGD9500235.
Fantasia in C Minor, Op. 80 "Choral Fantasy"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2cf9da9ddc5d94e456e06f31cbcd7f69a988b98f093565c6eb018f6eb776e53. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USZGD9500237.
Gundula Janowitz - Mozart: Concert Arias
Beethoven: Piano Concerto No. 1 & Choral Fantasy
Orfeo 40th Anniversary – Legendary Pianists
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6db97d3f6764a7bde0a2565c8dc7861a55a431efa5cad467ecab97bc268c9b. 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/GBKTX1002881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5acbcd7d21fc8b225fd84d847f3c1fbd63576f31fc009a6f470e28dc15befc. 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/GBKTX1002882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389d891033042bc0f85b9f7e462932acfaceda3f1a747ff8818a0a0f2ee93184. 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/GBKTX1002884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6604368b7af4ae0a7ac5b81ea917493f85598a1d06b2e8780c3b125531a5fe1. 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/GBKTX1002885.
Quintet in A Major for Clarinet, 2 Violins, Viola and Violincello, K. 581: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef0aede7cd831de5fdd716cd57456f8dac67b02a354b8be917699f684f5400e. 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/GBKTX1002887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b921b6517e7b241da42dc0f7ef98bcd093923c6804ce7f4a4c4c21e9884816. 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/GBKTX1002888.
Serenade No. 11 in E-Flat Major, K. 375: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66eb9b3e517a7af448e32609d3947a4d82917c9f8c50eb0c3e91f41bf558079. 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/GBKTX1002891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9939a77916e1d0f14d244e2ba837ae93fba606510cf62dd37c5bb7dbbfd5b18. 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/GBKTX1002899.
Concerto for Guitar, Violin and Orchestra in A Major: II. Adagio
Chamber Orchestra of the Vienna Festspiele
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360c4f4042cf4762f3a29db2cf35f54ab0b073771ca5ca9684a05269b7931728. 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/GBKTX1002900.
Sonata for Two Pianos in D Major, K. 448: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07c3f7bfcd6ab95756308249292dd39b2656c92d693e2feac6efc411190fc4f. 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/GBKTX1002905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87c7f494eead285d0a932c740e25d6df4935fb75fe7718d38edef59c27b2c28. 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/GBKTX1002907.
Swan Lake, Op.20, Act II: 14. Scene (Moderato)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eab74bea09317467e26a39b50d255b74af49fe9fb6c69ae3856abdcba584c68. 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/GBAYC0702156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8262a203e1cca8235697857c980f6499a4768e3f805a879fbff2b23e46d07820. 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/DEF058603930.
The Nutcracker - Ballet, Op. 71, ACT 2: No. 13 - Waltz of the Flowers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3b1e456ff928947faa2c1cb71b3c87a6e82afe638fb9a8175b64912fb78d86. 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/GBAYC8602246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eab74bea09317467e26a39b50d255b74af49fe9fb6c69ae3856abdcba584c68. 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/GBAYC0702156.
The Nutcracker, Op. 71, Act I: In the Pine Forest
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01904ea226a5fd752d8c6c05fef79fb6d2b910614e5f262e0c9c0e8a5b8513fb. 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/GBAYC1000863.
The Nutcracker - Ballet, Op. 71, ACT 2: Variation II (Sugar-Plum Fairy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a4ebaeab5dadcf10568f8936e627e8248fcd3f3bc48d3451866122d812e91d. 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/GBAYC0200248.
The Nutcracker - Suite Op. 71a (2007 Remastered Version): I. Miniature Overture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32380fa8353ff19d72f1a847c528c64deba9ff177b2584e154655fe0b7681cc. 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/GBAYC0700023.
Eugene Onegin, Op. 24, Act I: Tatiana's letter scene
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03fdff62c7d0a5d8dd145cb136eb5c41ce858910f3872412acee1c03544700e. 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/GBAYC0903108.
Marche Slave, Op. 31 (1997 Digital Remaster)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e98811f77bdab7de3830a1b0701e2d737f48a2368530767ec4f98f2b1563b1. 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/GBDYG1900151.
Piano Concerto No. 1 in B flat minor Op. 23: II. Andantino semplice - Prestissimo - Tempo primo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049f27b64ae852bd6ed57de0166ca130c323e8fcc4b810dbb390ceb3e0e587a0. 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/GBAYC9005731.
Piano Concerto No. 1 in B flat minor Op. 23: III. Allegro con fuoco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589ade3eb765cbe8d50db4452bcea21553321aab111668e869824c474ecbc0b7. 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/GBAYC9005732.
The Seasons Op. 37b: II. Février (Carnaval)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89441fe50ee5fb2be0349ee383c3298cb6277c8b06cfe4a77943f84bc27bc840. 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/GBAYC9400454.
The Seasons Op. 37b: XI. Novembre (Course en Troïka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764a8e6ba85c36f22b54197d021c90fa33c06d9e1f09601ae50ee85e91c7e31e. 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/GBAYC9400463.
Sleeping Beauty, Op. 66: Introduction (Allegro vivo - Andantino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86da333d5dc1b4f1adb75bf8d1910892bb333297f301547c952c2430bb26b66. 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/GBAYC9302147.
Swan Lake Op. 20, Act II: No. 10, Scène (Moderato)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46dc254d492210f9d37ca93cf3371fcd553c5c1e7eb715ffc03498e209b82ab6. 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/GBAYD0800062.
Carulli, Giuliani & Others: Works for Guitar
Partita in A Minor (Arr. for Guitar by Karl Scheit): IV. Gavotte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2807a6bbceb8c56b0ce457384b844706a5232dd9778a170805c49dd3e1712df. 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/HKI192333138.
Eine kleine Nachtmusik, Serenade No. 13 for Strings in G Major, K. 525: 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a5a8cab31bbcda9c711275d68579a17e6d3255a0ffc99fe8573e127eaa863e. 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/GBAVQ1700276.
Eine kleine Nachtmusik, Serenade No. 13 for Strings in G Major, K. 525: 4. Rondo: Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06898d547ed39c3d0bd2619cc8288a98ac2c06aa011347a230252e3024c19f95. 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/GBAVQ1700279.
Divertimento in F Major for String Ensemble, K. 138/125c : 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b346d633276ed718073f10708673cde103a5d7c9b0ee3b0d11b8f3b840a22a5. 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/GBAVQ1700281.
Eine kleine Nachtmusik, Serenade No. 13 for Strings in G Major, K. 525: 2. Romanza: Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb25a4e26f57e9304adc33a0b8ca01a761e9510bbcdb61e2b3316efa95daa0f. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/GBAVQ1700277.
Eine kleine Nachtmusik, Serenade No. 13 for Strings in G Major, K. 525: 3. Menuetto: Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1cb101e0e0f44a097995da8068e03a862e3e2ca4194e81a9eb738f398886af4. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/GBAVQ1700278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9df7a82275646cb491ba6390dc473b0325bdd0f6a3abb3a240a43b58d105603. 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/GBAVQ1700280.
Lohengrin, WWV 75 / Act 2: "Euch Lüften, die mein Klagen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6cdc102368f6720e28755e68e178ab61f4154eb81b9d9742ffae5d9a48ac18c. 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/DEF056705070.
Oboe Concerto in D Minor: I. Andante E Spiccato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d7bdded4b5fbb8cb55ffc87216bf0077e5c5b238bfd6b253a13fe172fbac71. 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/USZDG0600647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05809e9243b4762f1a346e3f461f5e474dfd3bddef4af32cdcebe2af0851c3a. 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/USZDG0600649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad41ae1c67815a34805ada2823df67d5d140f6f0d12998362c7490e5380ceff. 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/USZDG0600719.
The Menuetto Lounge - 111 Relaxing Masterpieces