Lara St. John (born April 15, 1971) is a Canadian violinist. Early life Lara St. John was born in London, Ontario, and spent her early childhood there.John Terauds, "Violinist Lara St. John Keeps He
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 0xd3716ffb4887ee76993a9517dcc269c2a3d8abc246900296208f9300995f28c4. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a2ff879-2cd2-493a-ae5d-ad14e88fd09e.json and https://artists.proofprofile.net/proofs/artist/7a2ff879-2cd2-493a-ae5d-ad14e88fd09e.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Gesänge des Harfners aus "Wilhelm Meister", Op. 12, No. 1, D. 478: I. "Wer sich der Einsamkeit ergibt" – Sehr langsam
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 0x25637c88c890e0f482d00e6fb9f4d969378801c4b4aac1c84f5cfa5bf8061244. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USAJE1314101 — a six-check JSON result.
Gesänge des Harfners aus "Wilhelm Meister", Op. 12, No. 2, D. 480: II. "Wer nie sein Brot mit Tränen aß – Langsam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43558eb6e06d1824fa423784ebff076ce5f7ffea4c1de4d5f78fc65aa55c2b54. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAJE1314102 — a six-check JSON result.
Sonatina for Violin and Piano in D major, D. 384, Op. 137: I. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab861ec02967b650f636a9094ca8ea878556e4c86fff8621c72720ce4bf3047. 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/USAJE1314104 — a six-check JSON result.
Sonatina for Violin and Piano in D major, D. 384, Op. 137: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8258300e63fc3212b0670201407d19384a0ca72f76172850efbda9c9d85b2b. 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/USAJE1314105 — a six-check JSON result.
Sonatina for Violin and Piano in D major, D. 384, Op. 137: III. Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3465405f66937e8a46c978b9feb76caffd72c3e7209662cf0a1644975215464. 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/USAJE1314106 — a six-check JSON result.
Impromptu No. 2 in E-flat major, D. 899, Op. 90
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fab399dd5dedf6704e81f94bec51cab7cc5bcbc792fa5abc8186c720df50bdf. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAJE1314107 — a six-check JSON result.
Impromptu No. 3 in G-flat major, D. 899, Op. 90
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f4dc4e25d88ac31c0cd4d52d0e4466e03825add3c3eb3a860bae7d6e2b851d. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USAJE1314108 — a six-check JSON result.
Impromptu No. 4 in A-flat major, D. 899, Op. 90
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612923e76f3aa3b660cefda0c704b558210ebff52100fb1aa028e2027bce6e0a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAJE1314109 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3edc9d777eb764f7fae18106bbfe00cf05ad268027cadd0ed41e5da94734405. 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/USAJE1314110 — a six-check JSON result.
Sonata in A Minor for Arpeggione and Piano, D. 821: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd3aae01fc519c1d1c2d488058931deeeb75926d80b6a46e41b3aae4a1157f9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAJE1314111 — a six-check JSON result.
Sonata in A Minor for Arpeggione and Piano, D. 821: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1486ecc319401f38fd2d80378342b96297b523690b372da560b3029fca86dcc5. 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/USAJE1314112 — a six-check JSON result.
Sonata in A Minor for Arpeggione and Piano, D. 821: III. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f28e530530b3785a6f4561bac9659ac05cb919ea126eb61906f2dc9ad1bf69c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAJE1314113 — a six-check JSON result.
Piano Trio in B-Flat Major, D. 28 - "Sonatensatz": Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a116a7354139873bbfe33f3275495e6be4541b4120ba34ca6c6cf5c2d07679. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAJE1314114 — a six-check JSON result.
Ungarische Melodie, D. 817: (Hungarian Melody) - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f254481d692d5c65b19069b041d539680bfdea07bd36a06bcbfb4e971648a10. 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/USAJE1314115 — a six-check JSON result.
Sonata No. 1 for Violin and Keyboard in B minor, BWV 1014: I. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe549e61ce539d97c3dc8e3a6f17ee0c2097af1a79bef2be752e4dc0a84e4771f. 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/USAJE1113901 — a six-check JSON result.