Elinor Frey (born August 23, 1979) is a Canadian-American cellist, specializing in music of the eighteenth century. She specializes in the music of underperformed composers from the later part of the
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 0x96e7ef6a03c9c233e4e1ded832b2ed51f1bf0f285137e8d5471631f27ccafa65. 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/6eabcf1b-0ad2-419c-be6f-afde7152dac9.json and https://artists.proofprofile.net/proofs/artist/6eabcf1b-0ad2-419c-be6f-afde7152dac9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x84078115038767fb12ba85c16c47fa3e62fecc69965ec1f6ce989dae3c9707b8. 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/QMFME1322051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bef0bbf58155f5710ace0758c1f606ee3a4212674e6d7e11f8ad2b5948d6fd9. 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/QMFME1322052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86328a1e5d818fb9d9e860042716f13b19080eab8af7d67df2863cbd452fc7e9. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME1322053.
Principij da imparare à suonare il violoncello: Toccata V - Version with Basso Continuo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c9186e48b75248ef1e8d2124cabc0d4f0380cdd4dd333c685cb5aa861fb6f1. 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/QMFME1322056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5db40fd8998303a089c338162b3e07c8051fd2322a4c1d3f13e6bd7ab5366fb. 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/QMFME1322057.
Trattenimento musicale sopra il violoncello: Sonata I in D Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3a3765f58b981e6777234f5050805c4d2fb7de3bf63db8ff334e20eac52fd0. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QMFME1322059.
Partite sopra diverse sonate per il violone: No. 7. Passagalli per la lettera E
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94a3d412980bc02fd446cfbb44c75ab8a770c6c6f50f79f366c2911e2aa3904. 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/QMFME1322060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c0080a11f4b05d64549c22635eee7dd031c2f58e414616b7135f61ffc3404e. 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/QMFME1322061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73067b0a74a051d4665264b63a3915cbd54d39e7407b3284f6571f51ab1d2538. 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/QMFME1322062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6c8f5c7580dde22b141ecf2b215640106899947a23c7ce6435aec8c60c7129. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:11:59Z), 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/QMFME1322064.
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
Sonata for Solo Cello in A Minor - from the "Como Manuscript"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117edbb189c427fdf16c2bc1657fc2d35b0215a4b1d9cc1f6b2f8809f4ed0fed. Chain 2 (Bitcoin): anchored in block 960230 (2026-07-30T08:32:18Z), 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/QMFME1322054.
Principij da imparare à suonare il violoncello: Toccata V - Solo Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278f94268bb4b208547bffa3dcdbbb38c23db6666e63fe92db4e304da4e2baa7. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QMFME1322055.
Trattenimento musicale sopra il violoncello: Sonata V in C Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb97175f4dc9fc3f28d4d8284d3a9db5abe3ba1abe978e9b312c5a8c7405d794. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME1322058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e2ead815251a7be435d5ffdbcaba00bf9a93313df54ab25f9e3419004ce9b5. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QMFME1322063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1a7ea10edfec0451f486d7eb42489077fe8fd29dc0a2361cf487151844e2da. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QMFME1322065.
Partite sopra diverse sonate per il violone: No. 3. Bergamasca per la lettera B
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dac9b4d75db8136f8ba5fab6484f2f2baded3f9b8aea22fc3e467f44ef76443. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QMFME1322066.
Partite sopra diverse sonate per il violone: No. 5. Capritio sopra otto figure
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac2f06a751d09e0bde2d8264bb15dcdbf683429359049f98c3c702097d7fd62. 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/QMFME1322067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45391f72087b57c41bdb3649c4cf71aa926fbce2deb98898107e17e54a338c72. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME1322068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072d06b0397cab748cb558ecc7294b2fb3c99c9fe7c506eb11a2b46dfc6bbeff. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QMFME1322069.
Ricercari, canone e sonate per violoncello: No. 1. Ricercar I in G Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c47c79ce5adf07c301c6130d24923cbb310c876658a93ff896961d6488b98e. 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/QMFME1322070.
Ricercari, canone e sonate per violoncello: No. 7. Ricercar VI in G Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6740c6b34ba49bd6acb3c898cba1d4e8bc313be81f09148da0558aab11c131aa. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QMFME1322071.
Principij da imparare à suonare il violoncello: Toccata X - Solo Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ca89eca7e847c90ed005dd292075ad5b5f541c0fb54f27682ee0893e8d7141. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/QMFME1322072.
Principij da imparare à suonare il violoncello: Toccata X - Version with Basso Continuo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9121c80ffd36449ac147a252322527cd690f45984d565f7dc686d9887fa3387b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QMFME1322073.
Trio for 3 Cellos No. 1 in B-Flat Major, ABV 54: II. Adagio
Cello Sonata in C Major, ABV 20: III. Aria
Chœur de l'Église St. Andrew and St. Paul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41bed12e49d0c72d2106a095c3df027d404b265aa1a9a70485b26f660d4abf31. 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/CAJ722184006.