Margaret Ruth Fingerhut (born 30 March 1955) is a British classical pianist. She is known for her innovative recital programmes and recordings in which she explores lesser known piano repertoire. Th
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 0x9087cedf0f42f72e0e43c2b9e9ffd379358554f4c7b64a75a95df134e6e7fd41. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db1837cb-a1bf-4874-8be9-995d574c8fa3.json and https://artists.proofprofile.net/proofs/artist/db1837cb-a1bf-4874-8be9-995d574c8fa3.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Endless Song - Margaret Fingerhut Plays Encores for Piano
Debussy: Sonata in G Minor, L. 140 - Elgar: Sonata E Minor, Op. 82 - Sibelius: Six Humoresques, Op. 87 & 89
Sonata for violin and piano E Minor, Op. 82: I. Allegro
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 0xbbf3294ae2e86e7ce1cade5246c9d76dbd24617014e0d737da5fa87f632e5228. 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/CH6631175804 — a six-check JSON result.
Leighton: Sonata Op. 64, Sonata No. 3, Preludes & Winter Scenes
Bainton: Three Pieces, Pavane, Idyll and Bacchanal, Golden River & Concerto fantasia
Margaret Fingerhut plays Lennox & Michael Berkeley Piano Works
Bloch: Visions and Prophecies, Five Sketches in Sepia, Piano Sonata, Enfantines, In the Night & Nirvana
Leighton: Sonatina No. 2, Five Studies, Fantasia contrappuntistica, Pieces for Angela & Four Romantic Pieces
Bax: Bard of Dimbovitza, In Memoriam & Concertante for Piano
Bax: Octet, String Quintet, Septet Concerto, Threnody and Scherzo & In Memoriam
Tchaikovsky & His Friends: Russian Piano Music
Margaret Fingerhut plays Suk Piano Works
Bax: Concerto for Violin and Orchestra, Cello Concerto & Morning Song (Maytime in Sussex)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4899382c7f77ea6b896ac3d2dd93483ae39a12667f377806f649c6c4e52fc6. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/GBLWD0602201 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33f70662d76f0fe06b4ba0df1c7d42c907c7cab5fb21d546e4e1525fc511004. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0602203 — a six-check JSON result.
Symphony in C Major: I. Allegro non troppo vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0eaceea0d914684599ec23ac47b20d2ee563b3ddf5e8de9225a840231c50fe6. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/GBLWD0602204 — a six-check JSON result.
Grieg: Piano Concerto, Lyric Suite & Peer Gynt Suite No. 2
Stanford: Piano Concerto No. 2 & Concert Variations on an English Theme
Moeran: Rhapsodies Nos. 1-3 & In the Mountain Country
Bax: Russian Suite, Four Songs, Golden Eagle, Saga Fragment & Romantic Overture
Stanford: Six Irish Rhapsodies, Piano Concerto No. 2 & Down Among the Dead Men
Irish Rhapsody No. 1 in D Minor, Op. 78, "To Hans Richter"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd126283a56117416a45604f6fba751688b8d449d0743b6c66b1001e4b20797fb. 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/GBLWD8804201 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c0575845a13f3524073b7401907bd1d382da0b2bdc3beee7421098bd001f70. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD9012005 — a six-check JSON result.
Irish Rhapsody No. 2 in F Minor, Op. 84, "The Lament for the Son of Ossian"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d26fd6a6e07af917e09d78d0dc56d5041c4f93e535f74f693a5e51b7a3cdbe6. 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/GBLWD9206605 — a six-check JSON result.
Irish Rhapsody No. 3 in D Major, Op. 137
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970bbcab84d8d29ff0d241543c2f49e9f44d307b964ecd8b99bbe471ab5cf0f3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD9005705 — a six-check JSON result.
Irish Rhapsody No. 4, Op. 141, "The Fisherman of Loch Neagh and What He Saw"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ca1d925c98294626b9a586274c6053ab567746c4a4a7ef93263ca8558b6699. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD8802105 — a six-check JSON result.
Moeran: Symphony in G Minor, Overture for a Masque & Rhapsody for Piano and Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2c0748d3e845ebd853da254668f934bb063c0e7255e0109a483b0dd2941ee9. 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/GBLWD0401101 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e76c8aa0a19ea642c48690e29427c0397acb4f47155bd99903615ce4718442. 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/GBLWD0401102 — a six-check JSON result.
Bax: Symphonic Variations & Morning Song
Grieg: Peer Gynt Suites, Lyric Suite & Piano Concerto
Bax: Winter Legends & Symphonic Variations
The Cala Series, Vol. 3 - Josephs, Grieg and Dvořák
Margaret Fingerhut plays Russian Piano Music
De Falla: Love the Magician, Nights in the Gardens of Spain & Interlude and Spanish Dances
Love the Magician: VIII. Ritual Fire Dance (To drive away the Evil Spirits)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1126cfb2f22f7c7eafe55dc8148a2f56b7722d3a8032c910ec666277de0c48. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0500108 — a six-check JSON result.
De Falla: El Amor Brujo, Nights in the Gardens of Spain & Interlude and Dance
Noches en los jardines de España (Nights in the Garden's of Spain): II. Danza Lejana (Distant Dance)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b5e81e30aec832c3d32e9eae665c705ff57c9de9accc36f0c084f163571a85. 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/GBLWD8602315 — a six-check JSON result.