Roel Dieltiens (born 1956) is a Belgian cellist and composer. Dieltiens plays both Baroque and modern cello. Dieltiens grew up in a musical family and initially studied piano. At the age of fifteen, j
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 0x082c0658cdb67811688cd4bb3761e4693e7ccc9a195f1f978ca14d506dce994d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1929d533-9dce-44ee-9613-c5a2fc571877.json and https://artists.proofprofile.net/proofs/artist/1929d533-9dce-44ee-9613-c5a2fc571877.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Cello Music - Vivaldi, A. / Geminiani, F. (Sonatas for Violoncello and Basso Continuo)
Kodály: Duo for Violin & Cello; Solo Cello Sonata / Veress: Solo Violin Sonata
Duo for Violin and Cello, Op. 7: I. Allegro serioso, non troppo
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 0x1703ae117662a3f8bbacc426ffb052fedd7635e0ece0d689fb1497cbcbcbb4d1. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/FRZ149506010 — a six-check JSON result.
Sonata for Solo Cello, Op. 8: III. Allegro molto vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a4764d955793ca298c00cbf227dab1d56604c6e261d48d093e415fae756a87. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/FRZ149506060 — a six-check JSON result.
Romantic Orchestral Music by Flemish Composers, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe50888dbd605d45bd05e5d12fbb1cb5299f3df8d90fb95ec30d6a609ca08e2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DECP69006001 — a six-check JSON result.
Cello Sonata in E Minor, RV 40: I. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab96657468c918fa35e31c1b3e879153ea5e76140aaa564be31954a7a44ad092. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DECP69111001 — a six-check JSON result.
Cello Sonata in E Minor, RV 40: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f241c3ceb5141f7a03e56dc6f785b60821592d4579940770cfda674287cdf71. 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/DECP69111002 — a six-check JSON result.
Cello Sonata No. 1 in G Minor: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1716d9f230c4fcd5e808f5f6095efe1c5bd44d8f49cb69516274c0a1e8f8f166. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DECP69006002 — a six-check JSON result.
Cello Sonata in E Minor, RV 40: III. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00876d981ac45addcfc375294cd2ba9bee7fb24be992db13a787ee07f078f9c9. 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/DECP69111003 — a six-check JSON result.
Cello Sonata No. 1 in G Minor: III. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f1438044c540d42a1615527ee187ff886c9c8e04ca1958170d34f0fca04d3e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DECP69006003 — a six-check JSON result.
Cello Sonata No. 1 in G Minor: IV. Prestissimo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe92e33a6ca8629b692a8d426fd1fd86d8ed75eae25ad212ba0c34b5691cfdb6. 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/DECP69006004 — a six-check JSON result.
Cello Sonata in E Minor, RV 40: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7acafa74afbf475e1bc7bda8f0cc224446d6873c89020dee1acf40d4fe4ae1b. 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/DECP69111004 — a six-check JSON result.
Cello Sonata in A Minor, Op. 5 No. 6, H. 108: I. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba19bb5348955458c3faa809129fdd54436c664e73e17559aa650001474af481. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DECP69111005 — a six-check JSON result.
Cello Sonata No. 1 in G Minor: V. Ricercar I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6495cd6b1c5d8bb8d082293b779bc643d70d2f0bf5c6d01fda0042cf93625af1. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/DECP69006005 — a six-check JSON result.
Cello Sonata No. 1 in G Minor: VI. Ricercar II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657448974609739e95e0bd1307dd59a8e8e5f75492da64bd01b764b5a5e227b7. 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/DECP69006006 — a six-check JSON result.
Cello Sonata in A Minor, Op. 5 No. 6, H. 108: II. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a791428263f73aac198db2283b7d0c0bfd3e9b801039dbb82163e2da957fd9. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/DECP69111006 — a six-check JSON result.
Cello Sonata in A Minor, Op. 5 No. 6, H. 108: III. Grave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0f40910049908235d62c31a532db38e42ca0b741dcb7052b87b11fb0f56d2d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DECP69111007 — a six-check JSON result.
Cello Sonata No. 1 in G Minor: VII. Canon à due violoncelli, uno entra una battuta doppo l‘altro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf5988051d4590ab41fea9c1b65539763a20cf40d6f81902ccb6981c099c98c. 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/DECP69006007 — a six-check JSON result.
Cello Sonata in A Minor, Op. 5 No. 6, H. 108: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f67d69867f4a6c2a0cd94c7b2a0cd8dd1d1872a89109aeda0b58f9706d539b. 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/DECP69111008 — a six-check JSON result.
Cello Sonata No. 1 in G Minor: VIII. Ricercar VII
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6983f716eb086217c00f1b5a644ed7b1bb3dde03dc6ff50a0ff19fa7c5b5fcae. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/DECP69006008 — a six-check JSON result.
Cello Sonata No. 1 in G Minor: IX. Ricercar VI
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f5e33baa9a1a13dcc03e1a2601d85373c9d8c3fe978d95b642f581b88a6d03. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/DECP69006009 — a six-check JSON result.
Cello Sonata in B-Flat Major, RV 46: I. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63320eb23ccc74f4e39279c84cce6aad374da987a6c0c52c928d2ccbd94874dd. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DECP69111009 — a six-check JSON result.
Cello Sonata in B-Flat Major, RV 46: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd711a29b40ed1384b8ca87adc230014ea86a660cc8d45797f829071cec808fd6. 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/DECP69111010 — a six-check JSON result.
Cello Sonata No. 1 in G Minor: X. Ricercar III
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31cf8eb9604f1b30ad98c60b840a6c1557dde879cdc505084f0f525c387825e. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/DECP69006010 — a six-check JSON result.
Cello Sonata in B-Flat Major, RV 46: III. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27df5f3ad0afac1bd2de270bfbeff3ac2781b778e6e9019abaf3f4186f8d85d. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/DECP69111011 — a six-check JSON result.
Cello Sonata in B-Flat Major, RV 46: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c21660796ad80b0c9866b6f98af670288d28527b470417316f7ceddc457f13. 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/DECP69111012 — a six-check JSON result.
Cello Sonata No. 2 in A Major: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab702fe2b58b1cc98ac5b5fc44d568422f5f909cd8b73ed410a20616b2261ce. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DECP69006012 — a six-check JSON result.
Cello Sonata in C Major, Op. 5 No. 3, H. 105: I. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2948b9836ead33df2ef12204c2e469454b23eb0dbdf99ea14faf935d4cb229. 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/DECP69111013 — a six-check JSON result.
Cello Sonata No. 2 in A Major: III. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66641dc1072e74a31b0fa4f80c73b575d32941c27002a378fe2389086e1e8ce. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DECP69006013 — a six-check JSON result.
Cello Sonata in C Major, Op. 5 No. 3, H. 105: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ebff6dde1a1493e2b10f05444f504fd10f9d4649786fe79aba41789ce61842b. 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/DECP69111014 — a six-check JSON result.
Cello Sonata No. 2 in A Major: IV. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc4a93def76e30cddbb61ad3eb5b49a6e4b5c939a42685ee028987218b889f8. 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/DECP69006014 — a six-check JSON result.
Cello Sonata No. 2 in A Major: V. Ricercar IV
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7870ffac852c354002ce8d3e331292bd8ca22bd1ee05c2aee1c5b1096d4513. 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/DECP69006015 — a six-check JSON result.
Cello Sonata in C Major, Op. 5 No. 3, H. 105: III. Affetuoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b4574ee6eec23c6a476b13eeee95d22fe9380b177659a9adcbb4338670f573. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/DECP69111015 — a six-check JSON result.
Cello Sonata No. 2 in A Major: VI. Ricercar V
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e27bb4b18d088f9881da7b9315a29b1f746df42c1e9b4a7a291163c5e71df5a. 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/DECP69006016 — a six-check JSON result.
Cello Sonata in G Minor, Op. 1 No. 4: I. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f7208f5f2ae3b3d2f12bd1a60d2471d0c1bb0a149ca9abca825dfe5fa387d8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DECP69006017 — a six-check JSON result.
Cello Sonata in D Minor, Op. 5 No. 2, H. 104: I. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90dd673643793ff4461dd1651c58839ba2b105da3c51a38737202b57a1165fd7. 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/DECP69111017 — a six-check JSON result.
Cello Sonata in G Minor, Op. 1 No. 4: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3bef4012709ceec15e4631e4a8647d208978fe7236eeef8ebd129be1dbff65c. 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/DECP69006018 — a six-check JSON result.
Cello Sonata in D Minor, Op. 5 No. 2, H. 104: II. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf11959d65d9c1b7d9408e0bc7a496c4614b9ef9be785fa4c3158172faebace. 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/DECP69111018 — a six-check JSON result.
Cello Sonata in G Minor, Op. 1 No. 4: III. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4acb70f6d38fb2293c5065dcbc3e7d5e124f61a6151737122e122f54b2e52a. 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/DECP69006019 — a six-check JSON result.
Cello Sonata in D Minor, Op. 5 No. 2, H. 104: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91bf2d7b8a331de1033bce0cfda930f0196f6a9200b09701b36ad39c3fac3ec2. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DECP69111019 — a six-check JSON result.
Cello Sonata in G Minor, Op. 1 No. 4: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65d873a895132e9a27dcab55f4cc0c88c899c0fcbb00a83c478c5ba295f85b9. 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/DECP69006020 — a six-check JSON result.
Cello Sonata in D Minor, Op. 5 No. 2, H. 104: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f486078e35fec77986fcc14989381648b349294ba084d9e2bf795b9e8b0433d. 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/DECP69111020 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9081208620f7de76bdaf896345601348d3fc5e305f64792ada6d83ac01e06a. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DECP69006021 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae208bcaca49d4f1dfe9ae2ab3a8ab874f39c329b3556d8ff1df9944c7696080. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DECP69006022 — a six-check JSON result.
Cello Sonata in A Minor: III. Minuettos I & II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20bbc848d0ed8c5fb200ec59eabab8b75161dcc0f96f6dc2e77d0edd23a4a22. 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/DECP69006023 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13bf13671b26b31da04a6e82e8c3f7cccb49e3dc5ff06cfbfd707e380cd0ebcf. 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/DECP69006024 — a six-check JSON result.
Cello Sonata No. 1 in D Minor: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1e8ace44f546f85248cf821eca5d53146f21832d0596c771d88789dcb283e2. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DECP69006025 — a six-check JSON result.
Cello Sonata No. 1 in D Minor: IV. A tempo guisto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2aaa5eec71389a634a515e0dc52fdb104cfceb2797b4bde16d97f0c192d88d5. 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/DECP69006027 — a six-check JSON result.
Cello Sonata in A Minor, Op. 13 No. 6: I. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0626f9ed6e45d157617a227b59f30586a445db1fb241b71397b618f2b55de8f. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/DECP69006028 — a six-check JSON result.
Cello Sonata in A Minor, Op. 13 No. 6: II. Alla breve
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85cb6fae415043d6e850e353df6472134e19fa6e31e4b635502951b814e6de5d. 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/DECP69006029 — a six-check JSON result.
Cello Sonata in A Minor, Op. 13 No. 6: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b62b8baac9bbbdd2f285c1ce1f3f38b2e25b442ad2e54b44804dcc1d27944b1. 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/DECP69006030 — a six-check JSON result.