Ferenc Farkas (; 15 December 1905 – 10 October 2000) was a Hungarian composer. Biography thumb|Ferenc Farkas playing the piano at home in Budapest, 1970 Born into a musical family (his father, Aladá
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 0xc66a3285d4e0fca26117c4dde12992fc69a47e376af3e51d84c74a9f6f3c2441. Chain 2 (Bitcoin): anchored in block 953968 (2026-06-16T16:01:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27316973-1bda-4b82-9290-2af14f160607.json and https://artists.proofprofile.net/proofs/artist/27316973-1bda-4b82-9290-2af14f160607.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Farkas: Chamber Music, Vol. 4 – Complete Works with Cello II
Ferenc Farkas: Complete Chamber Music for Cello, Vol. 1
Farkas: Sly Students Suite (The) / Concertino All'Antica / Piccola Musica Di Concerto
Ferenc Farkas & Angelo Gilardino: Works for Guitar Trio
Farkas: Chamber Music, Vol. 5 – Works with Flute & Oboe
Farkas: Chamber Music, Vol. 3 – Works with Flute
Farkas: Orchestral Music, Vol. 4 – Music for Flute & Strings
Ferenc Farkas: Orchestral Music, Vol. 3: Music for Oboe & Strings
Antiche danze ungheresi del 17. secolo (Antique Hungarian Dances) (arr. L. Lences for oboe and orchestra): II. Slow dance
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 0x33aa2aa5ffefd04fbeb4c000b496347195e9c32d4256bac005520cda3652f9c4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJZY1521702 — a six-check JSON result.
Antiche danze ungheresi del 17. secolo (Antique Hungarian Dances) (arr. L. Lences for oboe and orchestra): VI. Chorea
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d51a51852ae049cc0b6ec0ef9d89ccb7d361bc7a62e7e155c67b34bb4f3ff8. 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/GBJZY1521706 — a six-check JSON result.
Antiche danze ungheresi del 17. secolo (Antique Hungarian Dances) (arr. L. Lences for oboe and orchestra): VII. Leaping Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2c45c9309b480b557fb220c60ed092937fac7e6b92f3dbd8b5f2db1194b665. 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/GBJZY1521707 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f497cd51756e14754a50646dac048b1616e03b666e9a8333af1e02a54ff34c1. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GBJZY1521716 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f6d2b58081ea49deda2dd7648e998ba5f8fbb349f5f3442a3ee0f51b028ad2. 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/GBJZY1521717 — a six-check JSON result.
Piccola musica di concerto: III. Scherzo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4edc5cf6ee0fce67ef3b42a9a2e104140ffd5b9bf60100188772ac5b5d6c7944. 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/GBJZY1521718 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd00db1daa35f5968119bdf0c09e54fa1682858ad60b63b9e86162df642462f7. 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/HUA253485302 — a six-check JSON result.
Musica Sacra Hungarica. Geistliche Chormusik des 20. Jahrhunderts
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8768d2dc32b8c0e656be4de2bdcaf0d5ddf94b93f2e200493035b2c1d7bd09. 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/DEB111001601 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc787b3619d62b5fe84af4e885ec1ffea75a23ff125f6e4a401ceb14fee0a0d9e. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEB111001603 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1b4e88db3b77309a766963e6ebeebbb185a8d4d3cf427cdcf9001e9f081fc9. 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/DEB111001604 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64fc1a7e8a2833a0b97392d4d8a215c8af30e807bf60a7c5bc6cc154d8ead6f2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111001606 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2f4b11d6627285e51dd4b11b06a316b4ae75f7a4e4f0eda1e0062486ab5423. 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/DEB111001608 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce409c851f2e7214d0187187f917b08114691cf22c03301cdb9369fee64332bc. 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/DEB111001610 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0352f68785976389a3ed2220a404be01ac5a62b45887bed51dbda8568d62c389. 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/DEB111001617 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e7ebc2f078466eb1a7c13d9b784d4fd37d616b2d6cbf2bc05827086c78aaa1. 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/DEB111001618 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bc2fb62f012ac4b84981209411bcca6a9c37dfb67d9f10482c15d8b7ed22e9. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/DEB111001619 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bcc3ff2939c932792ac9d6eb4754858c94c781b76103052aae57a0fdd693baa. 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/DEB111001621 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db9035fa99b8ba9e1addd816d82d03e07bee14a3f5d2717e310fed841486bfa. 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/GBJZY0500110 — a six-check JSON result.
Antiche danze ungheresi del 17. secolo (Old Hungarian Dances of the 17th Century): I. Intrada: Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc3850ea80afb03b1388a064043f4cef17ff14ad0f99546a374d8598fa48456. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJZY0500129 — a six-check JSON result.
Antiche danze ungheresi del 17. secolo (Old Hungarian Dances of the 17th Century): II. Lento: Moderato maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6b3dfda703d5e3856c421d4e4320274d98a4c925665d1e077fac9e8203491f. 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/GBJZY0500130 — a six-check JSON result.
Antiche danze ungheresi del 17. secolo (Old Hungarian Dances of the 17th Century): III. Danza della scapole: Allegro quasi Scherzo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983b8afcf445479050fa462523f08ae922cd7a25990247f8245d02d5f638a40d. 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/GBJZY0500131 — a six-check JSON result.
Antiche danze ungheresi del 17. secolo (Old Hungarian Dances of the 17th Century): IV. Chorea: Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165cea31f0e8807da01c0a0a7520c0c98feb192162a292587913b6d0717c1db8. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJZY0500132 — a six-check JSON result.
Antiche danze ungheresi del 17. secolo (Old Hungarian Dances of the 17th Century): V. Saltarello: Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3400f1f9de97ea5cf231bc49c31b4169c1d9997f54cc330fe6f87f7c38ee6dc9. 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/GBJZY0500133 — a six-check JSON result.