Georg Matthias Monn (born Johann Georg Mann 9 April 1717, Vienna – 3 October 1750, Vienna) was an Austrian composer, organist and music teacher whose works were fashioned in the transition from the Ba
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 0x2793f2f1a49e0bcad86e732b2904cc8016af50ac8b4d41eef223c4e40dff976e. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cfe4b730-072a-4c49-b7c6-07e83edc1875.json and https://artists.proofprofile.net/proofs/artist/cfe4b730-072a-4c49-b7c6-07e83edc1875.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0xaaff8e6d6b9b17666e6bced80ebc8ebfc2ad78b1c89edeb6d4ffecd5636a83f6. 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/DEA349601569 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314c9300e29f92fa135a932c6c2538edae538b192ec60ac3a5c5ce811f242052. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEA349601570 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35fd3d69efe97fd7c99cca8f6df1f3120e33e7314565d3f0339eedc8f1f4b013. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349601571 — a six-check JSON result.
Konzert für Violoncello, Streicher & Basso continuo g-moll: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886c26745d547a17f0bf1c20d71d1dd1b0fa291a5aa56442e55a025ff5e50e19. 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/DEA349601572 — a six-check JSON result.
Konzert für Violoncello, Streicher & Basso continuo g-moll: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4641a1827d122538ac0d09ac4a88b2ae95075e10260885d8bcf7925f9091d6b8. 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/DEA349601573 — a six-check JSON result.
Monn: Cello Concerto in G Minor: III. Allegro non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be42630f907a3244e14f782bcfff67c6233ded6273b08e02330b407230c2c09. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349601574 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f9e2cd98a85328dec04d0be25b46fe752753ccf5670f60baad7d21a0531d06. 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/DEA349601575 — a six-check JSON result.
Partita a 3 Nr.2 g-moll: . Allegro (Fuga)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e05fa2f782cc733af279e5719b0ecf5ccafbc7b51f72e2da49522d74a629a2. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DEA349601576 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644595e1864b225c409944e50e3a13bf159e9a4b8cdcea9cb02184f41db6a7a1. 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/DEA349601577 — a six-check JSON result.
Partita a 3 Nr.2 g-moll: III. Menuetto - Trio Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f68469080681d496fb715c1929557d8788ac877d40907d2f5ce6b568ada545. 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/DEA349601578 — a six-check JSON result.
Partita a 3 Nr.2 g-moll: IV. Allegro Assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2f27d789c4e16026e03b34f204792a3acbe442365e74b932c270877e5d32cf. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEA349601579 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e969cfff65b178b94135846891d4d0c39ca7bbee306f7e851adac86b3f800b. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/DEA349601580 — a six-check JSON result.
Sonata a 4 g-moll: II. Allegro moderato (Fuga)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939af07f0500f4dc999d51da824d93d304cfbc468dc95cacb4f631ac462d1ed9. 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/DEA349601581 — a six-check JSON result.
Konzert für Cembalo, Streicher & Basso continuo h-moll: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273877175f3a1d7f150c8a7ad139d79ccd45cb84c33f4b91c946b987971bf24a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEA349601582 — a six-check JSON result.
Konzert für Cembalo, Streicher & Basso continuo h-moll: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0e9f4ba787dc900720808444d24cce222931072b4f31f53e9cd7462a4b497c. 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/DEA349601583 — a six-check JSON result.
Konzert für Cembalo, Streicher & Basso continuo h-moll: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b47e0c9bff4c85aa0d91dd5e67fdcab8a93350cf0b1d848ebec56cb4ca19e2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349601584 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8cb2f018921302301140f2d24b718d79e8d079cbe692b0463b598d1564b92bb. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/DEA349601586 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb560058cb7cecc758b1894bed1429d4d1e349f2cb56f429da73bf1b81e3b42. 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/DEA349601587 — a six-check JSON result.
Monn: Cello Concerto in G Minor: I. Allegro
The Great Cello Concertos: Dvořák, Schumann, Saint-Saëns, Elgar, Haydn...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3f5dce4995a666212f54ddcf3a674c596af19e759d4dff23dc69656a2f8795. 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/GBAYC2001058 — a six-check JSON result.
Monn: Cello Concerto in G Minor: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a079e22a578ce564998b9806b5bc900ecbc8ad43bbb8cd5372255d2c372e81. 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/GBAYC2001059 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786521bbdebe408bab85e4ce859cb928cae641cc2a8ce4d0f216043ba9d9698a. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/GBAYC2001060 — a six-check JSON result.
Cello Concerto in G Minor (2000 - Remaster): I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a9f2c0e7ddf077cba4ce3206f9791b1a4a8c2555e7c6696baa98db5c5c5576. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GBAYC0000162 — a six-check JSON result.
Cello Concerto in G Minor (2000 - Remaster): II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4500f5a323c14a6e2910764d4635cf7c8f96ca948cdf3ecbcd62786c216e04da. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GBAYC0000163 — a six-check JSON result.
Cello Concerto in G Minor (2000 - Remaster): III. Allegro non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39517394bbe8d8f8eb60bce69136a218233b9ce8eb1134628a3f4d4baa69fd30. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/GBAYC0000164 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0705cee2bf42d58d460d471ea9d4fdc9a9ae3da88a9b9928fa1a9a9ec6b488a. 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/GBAYC0703072 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539d6dfc880b2bb0ccbe7f8e5e48856b78b2b78f89ace0a1ef769df8291a0b88. 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/GBAYC0703073 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae4ed35ada203d7d1d87cd10d0922be98a3c1db2b95ab8c6c0e254afb19dadd. 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/GBAYC0703074 — a six-check JSON result.