Lawrence Foster (born October 23, 1941) is an American conductor of Romanian ancestry. Early life Foster was born in Los Angeles, California, to Jewish-Romanian parents. His father died when Foster
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 0x9143a8343af3ced94292c702072bf0749e2b1d8c84513e383e3f222f1d5d39b2. 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/78893253-4c6f-423a-ac0a-9e307c645a3c.json and https://artists.proofprofile.net/proofs/artist/78893253-4c6f-423a-ac0a-9e307c645a3c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dmitri Shostakovich: Cello Concertos Nos. 1 & 2
Cello Concerto No. 1 in E-Flat Major, Op. 107: I. Allegretto
Polish National Radio Symphony Orchestra (NOSPR)
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 0x816986c3deafc823ac7e18c3a11620ecf5813759c2a95f0e26043d915825e901. 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/DEE219777701.
Cello Concerto No. 1 in E-Flat Major, Op. 107: IV. Allegro con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35486d55b33faedafac9bd8f6cedcce5bc75f280410a38179c3ac62b82c9e4bb. 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/DEE219777704.
Cello Concerto No. 1 in E-Flat Major, Op. 107: II. Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5729719bd3c8093b740a587d8ed6a1991f48aa29a2a493b116000b11e9c266e. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEE219777702.
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
Cello Concerto No. 1 in E-Flat Major, Op. 107: III. Cadenza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa889ed954fa85e228d57fb0ae3ad10a5c5a468000e007d66461a738a3706a480. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DEE219777703.
Cello Concerto No. 2 in G Minor, Op. 126: II. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2083843e5235a9f4efaa6aa65a749e350b184dd3201871a4d2402d60b5d5bc1. 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/DEE219777706.
Salieri: Requiem in C Minor - Beethoven: Meeresstille und Glückliche Fahrt - Schubert: Intende voci
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaed334845716ffb10b9e905b22e2ad601cd459a0d3f605b72d1784be92ce76a. 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/NLE420901301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d7c70ae5bcbbf5da78e18e5c0a65013af33943961dc5cdbb22e0e219568362. 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/NLE420901302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f32ff7c49e95058d44dd47a40e5587713495db50791ca80073db75eaa74e7ce. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NLE420901303.
Requiem in C Minor: Agnus Dei - Communio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356989870e56ede6dc94b86850c362b0a75551592af7c3c3bec59f588d2aed4f. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/NLE420901306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6957384a8207ca8f41c14fd11a3f56b59c4afc18b6d7405ebed6b5c509fe2898. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE420901304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369b891804c87ff7380946f8c806b129af665f1bf145412f8fa6ffaf1c5f7898. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/NLE420901305.
Requiem in C Minor: Libera me, Domine - Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd109bbd748d7e8bb731a5d9ed7ec1dbac491f65f15e182a0e33fcd68b8f8e966. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/NLE420901307.
Meeresstille und Glückliche Fahrt, Op. 112: I. Poco sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe597de6857588cede7c17959a51c5554e593aa9f83ee9bccbc9e71753049a2db. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/NLE420901308.
Meeresstille und Glückliche Fahrt, Op. 112: II. Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfed68c89f8f27f7a24753effa886bf8c42a941c3a6da4da7aa19353dea5d1d. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/NLE420901309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2a917ad3babb34d2b26f0a20cd8bd1cad1251a12ebb71a62b926d24cb3d053. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/NLE420901310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeee8dc43b73737bf6dc6adda557a06a97ab8c5c3100f032e8ddcf1d671f2100. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FRZ208300101.
Vivaldi / Arr. Pujol: Guitar Concerto in D Major, RV 93: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad8c90a4290e4752a4372d8de54ddf42cb1c56df5b23702ea1b36f5af604dd4. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBAYC8904366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad8c90a4290e4752a4372d8de54ddf42cb1c56df5b23702ea1b36f5af604dd4. 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/GBAYC8904366.
Vivaldi / Arr. Pujol: Guitar Concerto in D Major, RV 93: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e6b0f1ecc2e1a2a2d93eb50b09d1757b34cf33186c856e07310f0bc48aed15. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8904365.
Vivaldi / Arr. Pujol: Guitar Concerto in D Major, RV 93: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ed47860beb16a7b1821b5362a9063f5c59f9fd109f57747662438d78ad30a9. 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/GBAYC8904367.