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 0x452609d2fba8d1a86a9cb230f4e55c45a61c86b9d1b7b88691472be395460fe0. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/70a4836b-0ca2-4852-9931-9812e3932c42.json and https://artists.proofprofile.net/proofs/artist/70a4836b-0ca2-4852-9931-9812e3932c42.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Per Monsieur Pisendel 2 (Six Virtuoso Violin Sonatas of the Baroque)
Sonata à Violino Solo di me Tomaso Albinoni, Coposta per Il Signor Pisendel In B Flat Major, So 32: II. Allegro
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 0x18a2a7f2a0e38da4a5f4f4d237cf20f886c641b444e7b4475da878392154c85d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBELX0200315.
Sonata à Violino Solo di me Tomaso Albinoni, Coposta per Il Signor Pisendel In B Flat Major, So 32: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983e8b71ea18c88acfe328957404f5cce15bb40935b5239e63e6c55295342ae0. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:30:36Z), 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/GBELX0200317.
Sonata for Violin & Continuo in D Major: I. Allegro – Adagio Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925a3d62d8e9f192040c9f1aa48867c15c34786d5f113af6ad2ccf7646df62a3. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/GBELX0200318.
Sonata for Violin & Continuo in E Minor: II. Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bab6c3806c973056606c8957d0a4186b162e58729f1d3a0820ca5d78569869. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBELX0200326.
The Rise of the North Italian Violin Concerto 1690–1740 | Volume 1: The Dawn of the Virtuoso
Introducione in G Major for Strings & Continuo, Op. 1: I. Largo e spicco – Allegro assai – Largo e spicco – Allegro assai – Largo e spicco – Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61985b9f72b7bea2f2d2c8103da4ac3bb481152979cbc5087a12f864781483c8. 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/GBLLH2270501.
Introducione in G Major for Strings & Continuo, Op. 1: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0fef79c142968936e8c4ca3f00720a1a4622bba29dcb351b39f175df25220d. 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/GBLLH2270502.
Concerto for Recorder, Strings & Continuo in F Major: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35ded52936103bfa3123dfe5a79333eb27a8bb372953ff67a3d7a70acb7b085. 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/GBLLH2270504.
Concerto for Recorder, Strings & Continuo in F Major: III. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53f03991de069a30a24260fd743865bbc448b15def198986947a214b3b35ad8. 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/GBLLH2270505.
Concerto for Violin, Strings & Continuo in E Minor, RV 281: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2860c44528e4e90811dd86179bcb879cf7e73b3ae5985f33605bc4e09bbecd77. 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/GBLLH2270515.
Overture-Suite for Strings & Continuo in D Major: V. Bourée
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4bd9c460e5a52285d3ee5d90319c208db92d64820d99e2294e8bc4d9aa070ff. 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/GBLLH2270522.
Concerto No. 12 for Strings & Continuo in D Major, Op. 6: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8912e0641ee109975a5ea229bb0c1392789aaf139e65e03a8da13c766366d07a. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2270506.
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
Concerto No. 12 for Strings & Continuo in D Major, Op. 6: II. Grave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc06c3f4f09dfe62853174b8293300317251968316cfadbd7b634e38853e18bb. 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/GBLLH2270507.
Concerto No. 12 for Strings & Continuo in D Major, Op. 6: III. Allegro mà non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6534678f58a9d30213e6ee30c09c4f21e8c053abe98632b8291788d70122be2f. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2270508.
Concerto for Violin, Strings & Continuo in A Major, RV 353: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa48adad280f2383053db425a83a239d9f24e94a6649ad9cbf87c25e090eb1d. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2270509.
Concerto for Violin, Strings & Continuo in A Major, RV 353: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1dbae40e7dc50cb5de7b4910af015c8fffbb22598f94d3d34f5e659457e032. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2270510.
Concerto for Violin, Strings & Continuo in A Major, RV 353: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4714a221ef8e0cd836b07d76c0685f0d8185d6a40edadd24a145dda94910ef40. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBLLH2270511.
Concerto for Sopranino Recorder, Strings & Continuo in C Major, RV 433: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f2954d2fbffe66e6eb57211670e826097a2f93f36cda2f77891f16351bceca. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2270512.
Concerto for Sopranino Recorder, Strings & Continuo in C Major, RV 433: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f9b8d855849dd1b4b778f4787888d37b3feba05daf975c7fe0fbe857ed06ae. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2270513.
Concerto for Sopranino Recorder, Strings & Continuo in C Major, RV 433: III. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d37ac50590c2151ce5f2f3b8f4d74ed9fa1fcc14919057acc5f99cbc928379. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2270514.
Concerto for Flute, Strings and Continuo in D Major, TWV 51:D2: I. Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e85dbd8faa73f60f08d59c7c122f3125de541419075726f9b1ac54056eb2e3c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBLLH2591801.
Concerto for Flute, Strings and Continuo in D Major, TWV 51:D2: IV. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3aae26d772029c605f1650c90ec20e5c7d40093dff9b86322572d83a656b11. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2591804.
Sonata VIII for Recorder and Continuo in G Minor: I. Preludio. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb60cb32ca16f521c3a962451756dd7456f48cbe6a9d91841abfdfc993b701c7. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/GBLLH2591805.
Sonata VIII for Recorder and Continuo in G Minor: II. Corrente. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe30aa355a0e11f85c677d65a33565b89081ba0d394cfbeba78dccaf7e521d01. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:41:59Z), 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/GBLLH2591806.
Sonata VIII for Recorder and Continuo in G Minor: III. Sarabande. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a075b9a17b22b12a22edb33469296d52586b6ca42e63ce2d3c9175b394ea8ec. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/GBLLH2591807.
Sonata VIII for Recorder and Continuo in G Minor: IV. Allemanda. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c9e298191af56de49f9847f9c5566ed3e2962004123c970c109b3094863a0c. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/GBLLH2591808.
Sonata Movement for Violin & Continuo in C Minor: II. Giga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9c21d88c0763c394cc65bdaf11e401e6ed84824c8e648510c5634e11b03397. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBLLH2591809.
Concerto for Recorder, Strings and Continuo in F Major, RV 442: II. Largo e cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2550a86de9786900f941d310732910141faef40a69e6ebe2f71fb5b3b7c917e5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2591811.
Concerto for Recorder, Strings and Continuo in F Major, RV 442: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd93fe90e1684554c294f2c8551e140b24de0d6d000fe5ce1056a761a1aa065. 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/GBLLH2591812.
Trio for Flute, Viola d'amore and Continuo in D Major, TWV 42:D15: I. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7962cf7e8e1a46d6308066f5f9c7ff4b49e443c67e92a4abe397a5049cb40f. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/GBLLH2591813.
Trio for Flute, Viola d'amore and Continuo in D Major, TWV 42:D15: II. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7b5eba4a29c7ab5bfb736ed04481be0ebae5803b452ecf251453950eebec16. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:24:49Z), 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/GBLLH2591814.
Concerto for 2 Violins and Continuo in E-Flat Major: I. Grave - Presto - Adagio - Presto - Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463eff04e0baee75326f08b8d09493987ba4fea58f3a5550da779b6e1095fe10. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBLLH2591817.
Concerto for 2 Violins and Continuo in E-Flat Major: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16821ab67430ae3d211e7679f7c8e2805f4025456c32f21a1cf1cf9b09b14ba. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBLLH2591819.
Concerto for 2 Violins and Continuo in E-Flat Major: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb8f069e4cbb94363416b5f46726e5f9226e250ccb5fe3c7a427210bb6d846e. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:39:23Z), 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/GBLLH2591820.
Concerto for Flute, Recorder, Strings & Continuo in E Minor, TWV 52:E1: III. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e2607da721b66cc0e4eeb334e0d14c5c2f1498a29854a41dcac1f2cc5a207c. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/GBLLH2591823.
The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": I. Allegro non molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7b74483f98a06292301d0a561c5b40bf08e2270de2c50f899e4396a04c992d. 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/USB8U1612673.
The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccb9244fa1fa975775c102d22a18119b1fb3da12107144e4b14cc68707bae8b. 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/USB8U1612674.
Salve Regina in F Major, RV 617: Salve Regina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb037a9385b72333872175de4ed79dc98f252cc438cc60e2aa38f0ddffb02ca8d. 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/USB8U1612699.
Violin Concerto in G Major, RV 311 "In tromba marina": I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24b269d58d4b7e0ffc9aed608175fc235e8d0134eb136d1650e908f60a3bd3f. 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/USB8U1612701.
The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa106811091a6f9ebbf2965bbcfb58c888bf871949372835efad6c3a325538294. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USB8U1612675.
Violin Concerto in F Major, RV 292: I. Allegro - Adagio - Allegro - II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2132ca6c2568bda6ba8018d9a37acdd8a78fbbb8cfd6118468ce26cc58e4b058. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/USB8U1612700.