Céline Frisch (born 1974) is a French harpsichordist. Portrait on France MusiqueCéline Frisch on Théâtre de la VilleCéline Frish on France Inter Life Born in Marseille, Frisch began studying the ha
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 0x368137f5c66caf3b3188cebe1fa09576304ee0b62e43686f8155fd213c506b28. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/daa7ded7-b6a3-4a1c-a2be-dad4d21a6520.json and https://artists.proofprofile.net/proofs/artist/daa7ded7-b6a3-4a1c-a2be-dad4d21a6520.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Symphony in D Major, H. 663: I. Allegro di molto
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 0x613e444ab021e4c784002513261cd04f1d9d978a390d5b072b159e053ea69e60. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2304301 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2efc524f43be207b7e441393d08a534865bcdcc12818165e3eb83e7ec9d003cf. 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/FR50X2304302 — a six-check JSON result.
Symphony in D Major, H. 663: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241de0622ed928aba989213f7e9d553b86a25c427ba9773fcefc63f66cc7b6f6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2304303 — a six-check JSON result.
Concerto for Harpsichord and Fortepiano in E-Flat Major, H. 479: I. Allegro di molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64fd1f3e30719ecc7edb4f1e1e988d08e4dbd3501e6f5ce08987230d68a2638. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2304304 — a six-check JSON result.
Concerto for Harpsichord and Fortepiano in E-Flat Major, H. 479: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ff7e8791b277a24caf93a8265a46ddb08c4fbcd65ad510d4097528abae7873. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2304305 — a six-check JSON result.
Concerto for Harpsichord and Fortepiano in E-Flat Major, H. 479: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755a21db4a7904fba79c88bcac18b7112d0038ab202d5304c4a1921122b10794. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2304306 — a six-check JSON result.
Divertimento in F Major, K. 138: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c291e775ef8246a4cd7d851e9555a9050e383b132071e67bc143c98843246e. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2304307 — a six-check JSON result.
Divertimento in F Major, K. 138: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5facb5e92ef980cefaa7b400045d06500865d2c69d3a34ef44a2797970ef462b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2304308 — a six-check JSON result.
Divertimento in F Major, K. 138: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea4718ec273d03fb03493f4ded13c846ad235db5294bed8ded00e6654cd8db1. 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/FR50X2304309 — a six-check JSON result.
Piano Concerto No. 17 in G Major, K. 453: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641e0f3a230144392d1a4cf072e7e5628ce2cb3fc0b95eec323e6c07255e46c5. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FR50X2304310 — a six-check JSON result.
Piano Concerto No. 17 in G Major, K. 453: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc189f96b526db96798127b6038d03659d801672405a85e02a5015e6336bf2ebc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2304311 — a six-check JSON result.
Piano Concerto No. 17 in G Major, K. 453: III. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4979b83f84d00444114d5e5a2d454a9abc3b1d01f4e893cedfcf9d63fb62598e. 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/FR50X2304312 — a six-check JSON result.
Brandenburg Concerto No. 1 in F Major, BWV 1046: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e88712ac816f26e32cdb1c4560169e55870ced62a9fe0f9c6f28fbda40ec03. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1530003 — a six-check JSON result.
Brandenburg Concerto No. 3 in G Major, BWV 1048: I. Allegro - Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2f8dc8279807363b4b4fb48e317ccb3f1fdbafeb69346db8c99e9e0e103d2d. 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/FR50X1530008 — a six-check JSON result.
Goldberg Variations (Aria mit Verschiedenen Verænderungen), BWV 988: Aria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb694c4cab61dfb34806ea1dc3951abf3617faf796790804b2c16fe6e7c24de1a. 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/FR50X1530301 — a six-check JSON result.
Brandenburg Concerto No. 4 in G Major, BWV 1049: I. Allegro
Bach: Brandenburg Concertos (Alpha Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc5ffca0505812bc73a35298c9f49cad352addd05db34d60b22a4fce4e84d40. 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/FR50X0407101 — a six-check JSON result.