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 0xab353793f39b2b1a296eb2d32c5bb236fe063196d6574f69fc05eded76e39bd2. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf6eee35-8f8b-41b6-b13a-63f80447fdc8.json and https://artists.proofprofile.net/proofs/artist/bf6eee35-8f8b-41b6-b13a-63f80447fdc8.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Britten: Les Illuminations; Sinfonietta; Nocturne
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 0x5df8af577e3355eeea330f37e9534f4e065ba1880a2c3d6aafa120e8e2db234d. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0501501 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbaca156500929290e8001a0b8ac39c9845986dab70a39f3d1855c7024ba43b8. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0501502 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6775284302e65ba36ba0bd09376d8ac1c75f3440c6714e6fa4cd478d8408ba7c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0501503 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ba0401114a5caffe77d1eff77fe22f999bf20f9ee862a16a8a06dba94a6611. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0501504 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f7c369c8d509b50e4e63989545afb800fce1e3be7aa150e1c74e3ae0e760e0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0501505 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46dbac9417dc73bfbcb4004435548bf91fbc91aecaff4b440d7e0392f2b601d2. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0501506 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd099cf3fe138c3e24abe11d2425cbe45e8d649227244808fe665e3f65388372. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0501507 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659a0fb9f89f2adaac95e81ec3bc961ffb121536b84fa6e9d7da2d94d57bb9ea. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0501508 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523a0b3e1fb72840af18eca111c88eeba1807500a0553e29e1a4e7ec1dbd2816. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0501509 — a six-check JSON result.
Piano Concerto No. 1 in B-Flat Minor, Op. 23: I. Allegro non troppo e molto maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0aec6c50e3219ed03b3742279f875ddae36a222c49a39cd58850534d8ad676. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9104766 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb81ebbf810e60e69af3929cd874b5585abc885165b4808eb3850650398a803. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9600040 — a six-check JSON result.
Romeo and Juliet, Op. 64, Act I: Dance of the Knights
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60a1fe66d537e4dbdf325a7c6f2e2a4237f9ba365053aa95a69200e0380fd19. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0800235 — a six-check JSON result.
Sleeping Beauty, Op. 66, Act I: Garland Waltz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8af21df18705f08f01b527ce2cdf46a2fea107e96ab37c404846c6957b6213e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8200111 — a six-check JSON result.
Symphony No. 9 in E Minor, Op. 95 'From the New World': II. Largo (opening)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e790034b8c61be004c47fd903e93beb1ef891147bf18358750a1de307997135. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8800875 — a six-check JSON result.
Water Music Suite No. 1 in F Major, HWV. 348: VI. Air
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660ab7cc5a692649a07819b2efeafabd8a736fbeb1c0d15824b680ca339f460e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8300530 — a six-check JSON result.
La Gioconda, Op. 9, Act III: Dance of the Hours
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b850adc13a87b90305399b072438e877b233880bfb52cf991874812e56920b. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1000323 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbce78e875169643eb06bd3697a30d83282daa956a38952dac3131a246e5e55. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0500188 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99706fe55c1e6a58553d3c0f640275f5897bfa5787044df610d13c7cf844c26. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0500189 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ba03b0a7494527332980025ccdc13d20ae6180918996f570bd2f713e707e18. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0500190 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e1fd2dae91abdddee3ac4c2d781c3c1f3f183df0e4dfe861b69f18c8d0a3c1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0500191 — a six-check JSON result.
Vienna Strauss Orchestra and Willy Boskovsky
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f49f6534ffe59a0f7e19387a29937c6d41c3f72e63553148b639b67a33de10. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8200159 — a six-check JSON result.
Suite for Jazz Orchestra No. 1: III. Foxtrot
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6ffe5b75657cfdf3c8194f675433680afe0e0686d080ada723e177bf11f3b7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9600039 — a six-check JSON result.
The Four Seasons, Violin Concerto No. 1 in E Major, RV. 269, Op. 8 No. 1 'La primavera/ Spring': I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b4934c75d7a444e1eb8bce279a522c56764c1f09d21bcc95e90c2cd58c933e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYD7200044 — a six-check JSON result.
The Four Seasons, Violin Concerto No. 1 in E Major, RV. 269, Op. 8 No. 1 'La primavera/ Spring': III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9820c9c57654e3038cbc82ef4623b8bad373f2ea61b922125967dd3d4804f37d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYD7200046 — a six-check JSON result.
Sleeping Beauty, Op. 66, Act I: 6. Waltz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe252c8f63dcc0680c535f812ee2dbd944b1f12e2b755b94d87fb3ca4098eafb2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8803961 — a six-check JSON result.
The Four Seasons, Violin Concerto No. 3 in F Major, RV. 293, Op. 8 No. 3 'L'autunno/ Autumn': I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20bcdf19a182de7b7714527796b41162712abf9c135c04f34a3c3a6d9a7e2d6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYD7200052 — a six-check JSON result.
Piano Concerto No. 5 in E-Flat Major, Op. 73 'Emperor': II. Adagio un poco mosso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db069bd550aee8414b2bcaa246cb7c515cb65170a784957dee773ba5b4189c4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628800077 — a six-check JSON result.
Cello Suite No. 1 in G Major, BWV. 1007: I. Prélude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86996532f9c2fc07165c9924bb017688d3d2e6b9025cb22b3d730b3ec3b5300. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9300913 — a six-check JSON result.
Partita No. 2 in C Minor, BWV. 826: IV. Sarabande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b85056fef4efa4bea20c9b25a7cd341a753e52cde2e3dc6c4820c20e0ee05d2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0900285 — a six-check JSON result.
Brandenburg Concerto No. 3 in G Major, BWV. 1048: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433c96c12647f656cafa2bb7e4066a9a8229490fe90f691d096bd12c8c4c09b6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYD9100675 — a six-check JSON result.
Water Music Suite in F Major, HWV. 348: V. Air
Orchestre de chambre Jean-François Paillard
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4438762e48f088a8ccff104b8333217764f875215ec03a7a0dd295fb488fd37f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ207200905 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2621f4dcfd3e806c67b08ee66c75fe8fb94f44d736920b1bec2ddeac5d7546cb. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8800754 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50bfe9c07e68b87a3da376e7715183e1d33b1540072c927a729bf8a72ce279ab. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628600836 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67282ec9fa0ab7152606b728e7212b5945468103e1e13432c81406eef2cdf6b9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9302034 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5604adae8ef017dc0de5360f5a797bcce104ab2ff16c6cb6db4489f1d036e579. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9803606 — a six-check JSON result.
Violin Concerto in E Minor, Op. 64: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939c59c627f32a7af2b9fc79421e27b28bb009488868a22982e9c0cdcb2f1ab8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628500417 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe054ca624f71bff83a77ed7a40e04df5d97e8a2dd434125cdc1cbae0fd0f52b1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYD8900719 — a six-check JSON result.
Three Gymnopédies: I: Lent et douloureux
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109b571f6ff11a2b8595d2d1c09b1d6c9f71ab9fb80266c0dcbee42801b2e876. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ118306144 — a six-check JSON result.
Keyboard Sonata in D Minor, L. 413 'Pastorale'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eadb0c2dae17b858bfaea9909a9bc124c3b207828e0305c9c6590b89e5fec1a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ116207579 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ec8b81da64222e073ef7596c6e9faa6b780aed653f720fd09aa9662c526b80. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600498 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9dcedb27cefe15151fdd1705dbc613ead8b600e26ff8f4703a74a33dd5bc9c5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8300062 — a six-check JSON result.
Serenade in G Major, K. 525 'Eine kleine Nachtmusik': II. Romanze (Andante)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56a143202aa0d99b4674c7e4051b5d44be757e7ecb41d0b4bd6a6bc43fb5d27. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9004173 — a six-check JSON result.
Canon and Gigue in D Major, P. 37: I. Canon
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Concierto de Aranjuez: I. Allegro con spirito
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Pierre et le loup, Op. 67: theme de Pierre
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Liebesträume, S. 541: III. Oh Lieb, so lang du lieben kannst
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Suite for Jazz Orchestra No. 2: VI. Waltz 2
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Piano Trio in E-Flat Major, D. 929: II. Andante con moto
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Peter and the Wolf, Op. 67: Medley of themes
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Peter and the Wolf, Op. 67: Peters Theme
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