was a Japanese-German pianist, a revelation in her country in the late 1990s. She was well known in classical music through both CD recordings and public performances, particularly for her interpreta
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 0xf1f65faa8824a9bd46d2dccfa03b1a11a53e4daf6f62fd2b2cce0ca885d6feb6. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1035bb51-828d-4fed-8ee1-a85f85d72a34.json and https://artists.proofprofile.net/proofs/artist/1035bb51-828d-4fed-8ee1-a85f85d72a34.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mendelssohn: Piano Concertos Op. 25 & Op. 40 - Six Songs Without Words: Chamber Arrangements
Six Songs Without Words, Op. 19, MWV K 56 (Arr. for Chamber Music by Cord Garben): N° 1 Frühlingslied: In dem Walde, süsse Tone
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 0x46cea546493c75c2cb02c1ae64c1561ccea26fe42ad0bf0849fff42c6dbbe335. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH1260991004.
Six Songs Without Words, Op. 30, MWV U 103 (Arr. for Chamber Music by Cord Garben): I. Andante espressivo "Contemplation"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0138385e912fc980605d7b8de7adca4bd354d1d1db98fdb954acd3540e2a034. 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/CH1260991005.
Six Songs Without Words, Op. 38, MWV U 115 (Arr. for Chamber Music by Cord Garben): II. Allegro non troppo, Bonheur perdu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5384daa5a0b00ffb87ef0141d2de6fb221052d45449351ea208e1435c6ed74d0. 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/CH1260991006.
Six Songs Without Words, Op. 38, MWV U 119 (Arr. for Chamber Music by Cord Garben): VI. Duetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb700294dc0564d2b2014585e4154f7306075dc80550e99b640ae6cfece30a77f. 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/CH1260991007.
Six Songs Without Words, Op. 62, MWV U 185 (Arr. for Chamber Music by Cord Garben): I. Andante espressivo, Brise de mai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa067012a45bff97ed264b64698a841587a9e91cbec607a106f0f75f2aacd2482. 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/CH1260991008.
Six Songs Without Words, Op. 67, MWV U 102 (Arr. for Chamber Music by Cord Garben): III. Andante tranquillo, Chant du pèlerin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7cf0ab44f61c92e5d03df7545cd5f5babbe55e5d0216125761daa33f1f527a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH1260991009.
Mozart: 7 Piano Concertos - Symphony No. 40 arranged by Johann Nepomuk Hummel
Mozart: Piano Concerto No. 18 - Symphony No. 40 (arr. J. Hummel for chamber ensemble)
Symphony No. 40 in G Minor, K. 550: I. Molto allegro (Arr. J.N. Hummel for flute, violin, cello and piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a668fd3dfee71d1137f549d9c0079f84d5da28952c54b8eaecda1cd2bf57b2. 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/SEAEP0667040.
Mozart: Piano Concertos Nos. 22 and 25 (arr. J. Hummel for chamber ensemble)
Piano Concerto No. 26 in D Major, K. 537, "Coronation": II. Romanza. Larghetto con moto (Arr. J.N. Hummel for flute, violin, cello and piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a6aaccaa8841351631d884f59b4d38395026295da7268ba3fedc0eafbdf1b9. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEP0537020.
Mozart: Piano Concertos Nos. 10 and 24 (arr. Hummel for Chamber Ensemble)
Concerto for 2 Pianos in E-Flat Major, K. 365: II. Andante (Arr. J. N. Hummel for flute, violin, cello and piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9ba561813ca4d7e546e34108f50c5cc3d7f988ef0d280d324323109f344fe7. 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/SEAEM0437020.
Mozart: Piano Concertos Nos. 20 and 25 (arr. Hummel for chamber ensemble)
Piano Concerto No. 20 in D Minor, K. 466: I. Allegro (Arr. J. N. Hummel for piano, flute, violin and cello)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052611a40b986dbab840c4e4a9fc144f6c18d7196371ea234cf4fea0508a755f. 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/SEAEL0347010.
Piano Concerto No. 20 in D Minor, K. 466: II. Romance (Arr. J. N. Hummel for piano, flute, violin and cello)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7cdde9fe0ea3127bd481084888659a7a8010a17ed0fe4ac38c3ec22a1311c96. 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/SEAEL0347020.
Piano Concerto No. 25 in C Major, K. 503: I. Allegro maestoso (Arr. J.N. Hummel for flute, violin, cello and piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136613cc746d29d1fdfcad7c92427c0da321ffd6829cb7b809da85a529c6d362. 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/SEAEL0347040.
Piano Concerto No. 25 in C Major, K. 503: II. Andante (Arr. J.N. Hummel for flute, violin, cello and piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd822f225768f89e2e49e0d52db25001b9048cc5ca9c7026654e8477cf43ba10d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEL0347050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe06623fcc3092903a1abaa1162aa30f0f2d8bf64d146ffdc179b5471b928fa3. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/SEAEM0197010.
Stille Betrachtung an einem Herbstabend, WAB 123
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00ab702e9e4c8724742611f474c85b3305cc27f21284d5be6fd5c916f007ca4. 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/SEAEM0197020.
Steiermärker, WAB 122: Steiermarker, WAB 122
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f7003b3e8f7ec9ac0daeefa4fe9598aa675b9e0affb0ab17462e186623785f. 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/SEAEM0197030.
Lancer-Quadrille, WAB 120: I. Lancier-Quadrille No. 1: "Eingang"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f1e9f8613e98fa64a4848a2b22da50f15c771cea341c42bd19cb359acf4cf4. 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/SEAEM0197040.
Lancer-Quadrille, WAB 120: II. Lancier-Quadrille No. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06819cd0c84e071d60e37c604052ca074ff4a50a60760652b4996a4c5305eb77. 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/SEAEM0197050.
Lancer-Quadrille, WAB 120: III. Lancier-Quadrille No. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa189dbcd332230784a0c05000e1ae5430f523db1697406726b6b2af8673e692. 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/SEAEM0197060.
Lancer-Quadrille, WAB 120: IV Lancier-Quadrille No. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a2b011311c0cdeaba9df93fae1f0b00b625a6a9962c44b368d2cd73d7366ab. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/SEAEM0197070.
Klavierstück in E-Flat Major, WAB 119: Klavierstuck in E-Flat Major, WAB 119
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc52e2484002885fbfc00c1ae24113961748fa5ea0280f98b9bb75284f58f50. 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/SEAEM0197080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a2ca89ae1adc038716b8adeb7753a18ec00475c81d600b388b4c108ce4d4eb. 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/SEAEM0197090.
Erinnerung, WAB 117: Erinnerung in A-Flat Major, WAB 117
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871bd1ab2adcf9d5535be92ca6ec3fc8533f931bff90674af7d1b73929961f19. 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/SEAEM0197100.
Symphony No. 7 in E Major, WAB 107: Adagio. Sehr feierlich und langsam (Arr. For piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a338bdb49f2351727369ee8ba25576c96c7b04c2691bdd3651f7e25e98d40c8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEM0197110.
Beethoven: Piano Concertos Nos. 1 & 2 (Chamber Version)
Chopin: Piano Concertos Nos. 1 and 2, Chamber Version
Piano Concerto No. 2 in F Minor, Op. 21: I. Maestoso (Version for piano and string quintet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb261145aae1504f920bd5fb1a254c9b12579402028bc15a745de34c253b91d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEI9747040.
Piano Concerto No. 2 in F Minor, Op. 21: II. Larghetto (Version for piano and string quintet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bf0ddb75f795118e02df1d8f2a8869af4b9edcdc27b2ddb8975da2395e1635. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEI9747050.