Lara Downes is an American classical pianist and cultural activist, and she has focused on promoting classical music by women and Black Americans. She was selected as the Classical Woman of the Year f
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 0xcb97ec154e65cbb7f464bb8d1c3af63908a7e1951f92d745f258048a27c9e51a. 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/d2d827f8-b3c1-49e7-9d63-bef022cd8529.json and https://artists.proofprofile.net/proofs/artist/d2d827f8-b3c1-49e7-9d63-bef022cd8529.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Leonard Bernstein - Soundtrack to a Life in Music
Three Dance Episodes (From "On the Town"): II. Lonely Town: Pas de Deux - 2016 Remastered Version
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 0xeef441bac1939db3cc4de1dc83a374238fbf9d01f91267e738554acd24fcb880. 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/USSM11605214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673efb5f1ee1fb57b3fa9cf64d5de19ae1ca4b07d99a5812ce3da718b824565d. 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/USSM16000305.
Trouble in Tahiti - An Opera in Seven Scenes: Interlude:"Skid a lit day"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22dd4ce801a2d33e332928140ed690afc14ced353d9fdaa5cfbcc9ad13bac069. 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/USSM17400499.
Candide, Act I (Remastered): Paris Waltz - 2017 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5f4b186211313faed21674450b1ac57dd3c102091cb2b84ab93f3e6b10b04f. 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/USSM11703242.
Fancy Free Ballet: I. Enter Three Sailors - 2017 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8115e79609c899c330f2923bb0ccffde2b4dd86baf1128fae341ec5e599e46. 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/USSM11605202.
Candide, Act II: Finale - Make Our Garden Grow
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33a549a49c56691f4d748e12a14d083a6a8cc84df34a08ffab49a1655b8dbe1. 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/USSM10213565.
Mass - A Theatre Piece for Singers, Players and Dancers I: XVII. Pax: Communion ("Secret Songs") - 2016 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62922593f1b5b0159120dd9794375e17af8f01efd9ade49cc9e4c0708b42a4b8. 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/USSM11605272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f34f568c3ca86e93f0ec43e270402b5cd8976414080a088b78c0608b8d283d7. 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/NLE422301801.
Frühlingsglaube, D. 686 (Arr. for Piano by August Horn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4bfa00cb2712796079489b256528662cf3611cf80ac9fe29d7567cc95b402e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLE422301807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0940014dc69d6689d5c14a25af147ae71f7dfc051476d3c48e23d05bee809446. 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/NLE422301808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5203ad436a0dbb33116bdabc7922239d6a44afc3f0517411034c5ba1e7699fef. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLE422301823.
Laugh at All My Dreams (Arr. for Piano by Jeremy Siskind)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb83a6af8c0c801d4eb8c6c9b18f8e00a30028bf268861872f4acb5a4e1904c3. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422301803.
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 0x0afea8e07ed8e64b943b4ea3536b4ef58a7cc0b57ef19f76589971855d305581. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/NLE422301809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d876bcabb70bb1503a1ddd1d51bba8a5b806d9edd50865d2a8be597f199123. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422301814.