Lena Neudauer (born 1984) is a German violinist. Life Born in Munich, Neudauer started playing the violin at the age of 3. She first took lessons with Helge Thelen and later with Sonja Korkeala. At
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 0xa135a19f5f4f605eef33ebe2173724a27b963b0e3137558c9e193120840a5980. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66ab17e3-8369-4a27-b103-ba1b9a29b263.json and https://artists.proofprofile.net/proofs/artist/66ab17e3-8369-4a27-b103-ba1b9a29b263.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
GAIA Music Festival 2012: Music of Krenek & Webern (Live)
Schumann: Complete Works for Violin & Orchestra
Piano Concerto in G Major, Hob.XVIII:4: II. Adagio
Württembergisches Kammerorchester Heilbronn
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 0xc8be6939d552cbb6483cd2863df4fd903bfd9dadab55e60f22083089c9cc2a0d. 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/DES382221102.
Piano Concerto in G Major, Hob.XVIII:4: III. Rondo. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cf5c5f80576edb1fd9a38a1f6b366194de27b9769188e825ef4e68ddd1d36f. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES382221103.
Piano Concerto in C Major, Hob.XVIII:8: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c892c2bdcd71568c3640934994574655a23746f2c9fccfce5568d27e090ea0e. 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/DES382221204.
Piano Concerto in C Major, Hob.XVIII:8: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcb234c6cacbed2b9c35feff090ba01c4dd750fd009d72b433bc609983aefd4. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DES382221205.
Piano Concerto in D Major, Hob.XVIII:2: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd2b7f66a0f974fb8262ec919447443fb909e9420e5b2c07889cde4521e1d4f. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DES382221107.
Piano Concerto in D Major, Hob.XVIII:2: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5066136834c22a3e3f6894683284274525d62c4a0668e1ea71c995a2e8edc0ff. 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/DES382221108.
Piano Concerto in D Major, Hob.XVIII:2: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2d53b2305b1fe0e898eb3105137ce525d257920309843ee5af4707ff012c9d. 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/DES382221109.
Piano Concerto in C Major, Hob.XVIII:5: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c81a9898c2e0189384c9de8c5482cba6fe2879d2b9cbeb4b856d1edb4f1f40d. 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/DES382221112.
Concertino in C Major, Hob.XVIII:10: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c8d39e409d64c400195d7746d992e348344a9b8754b1c183d3f86fb2b0e08d. 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/DES382221113.
Concertino in C Major, Hob.XVIII:10: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d2854f2c598e099b1fa0578cac5efdbb0ec2bb9b4c78248df98f7fef5ff388. 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/DES382221114.
Piano Trio in G Major, Hob.XV:25: III. Finale. Rondo all'Ongarese. Presto - Arr. for Piano and String Orchestra by Ettore Prandi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93c88b3b711041a9de36d114611e679a10bcfd11e5b6a25f7474732fbc3dcd2. 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/DES382221116.
Piano Concerto in C Major, Hob.XVIII:1: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb16552871cb1c4df2a9818015b082007027ae62f9f67d550baee3d35198f65a. 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/DES382221202.
Double Concerto in F Major, Hob XVIII:6: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600b46d1fd043ea9bdf6539d9e286bb2b4c61944dd3d08ee1d8632395bfcefcc. 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/DES382221210.
Double Concerto in F Major, Hob XVIII:6: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe85efb82755259d40c01e3090ec93412a07b3a6ddc95243973e30066525c805. 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/DES382221212.
Double Concerto in F Major, Hob XVIII:6: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04eb384655e1fc3321c3eeade489023c281f5dafa5baf2486640b2705b802fb8. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DES382221211.
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
Beethoven: Violin Concerto, Op. 61 & Violin Romances Nos. 1 & 2
Double Concerto for Violin & Piano in D Minor, MWV O4: I. Allegro
Südwestdeutsches Kammerorchester Pforzheim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25200a5222e46034c1aff2d4608ae87fc11a3e5b76a49d9b5602bd91b5519705. 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/DEB201719701.
Double Concerto for Violin & Piano in D Minor, MWV O4: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe1a62e48ecfacbad255f6674f1ede909498172bab8778f3928a4c567a7fe77. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/DEB201719702.
Piano Quintet, Op. 17 / Piano Octet, Op. 6
Mozart: Violin Concertos Nos. 1-5 - Adagio in E Major
Ravel: Sämtliche Werke fur Klavier und Violine
GAIA Music Festival 2010: Music of Atterberg, Bruch, Schumann & Weiner (Live)