Roberto González-Monjas (born February 23, 1988, in Valladolid, Spain) is a Spanish conductor and classical violinist. He is chief conductor of three orchestras — Orchester Musikkollegium Winterthur (
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 0x0b3a031c288eb01164417ca5c67c0c1ae417f02b2bdc144acfe22b094c2d1387. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b10be8df-074a-4cef-8ae6-42406049e3fd.json and https://artists.proofprofile.net/proofs/artist/b10be8df-074a-4cef-8ae6-42406049e3fd.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Serenata Colloredo, K. 203/189b: IV. 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 0x78fcccc1c0809a6ad0fa45de87b134dcdf9c507e5286014485bfa4d9b95fe3ee. 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/DES382317008 — a six-check JSON result.
«Werden» works by Mozart - Beethoven - Tarrodi
Pierino e il Lupo, una fiaba musicale per bambini, Op. 67
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794e7a13267f53c688b8a3201a356c6733d31a9e58241b13a054c600475ee01d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH1262410901 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbd90a826ee4be56d7321fe3c2e63335be4623b754f702a4fd3fdd6b76e1c71. 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/CH1262410902 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47607b054c13b4bc56a87e42ca5a46e39e2033f271063bdc60ce8a7b699f2d1. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/CH1262410903 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096be134d3da774b1f862974deffea8d98e10a64c4e873f136e7f95f1cd81c35. 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/CH1262410904 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa953c8b04b7081a77f0b05dada25982b6cdbb69e2c94791c0caa9475d55bab. 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/CH1262410905 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9ddcd41e3fad638c9781787cd01d9a6e6ab031c32e58feed2e896d2ae4c693. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH1262410906 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a853521c6d6cc4d8447dbe46ab31cfc2405f192639ba28644182777f014ef97. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/CH1262410907 — a six-check JSON result.
«Sein» works by Mozart - Syrse - Haydn - J.-C. Bach
Symphony No. 40 in G Minor, K. 550: I. Allegro moderato
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Symphony in G Miinor, Op. 6/6: I. Allegro
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Pedro y el lobo, un cuento musical para niños, Op. 67
Prokovief Pieder ed il luf, ina praula musicala per affons Op. 67 (Romansh Version)
Pedro e o lobo, um conto de fadas musical para crianças Op. 67
Pedro e o lobo, um conto de fadas musical para crianças. Op. 67: I. Pedro e o lobo é um conto de fadas musical…
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Pedro e o lobo, um conto de fadas musical para crianças, Op. 67: II. Uma certa manhã…
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Pedro e o lobo, um conto de fadas musical para crianças, Op. 67: III. De repente, Peter se deu conta de algo…
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Pedro e o lobo, um conto de fadas musical para crianças, Op. 67: IV. E realmente: mal Pedro havia ido embora…
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Pedro e o lobo, um conto de fadas musical para crianças, Op. 67: V. Agora eles estavam assim…
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Pedro e o lobo, um conto de fadas musical para crianças, Op. 67: VI. Porém caçadores vieram da floresta…
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Pedro e o lobo, um conto de fadas musical para crianças, Op. 67: VII. E então imaginem só este cortejo triunfal…
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Peter ve Kurt, çocuklar için müzikal bir masaldır Op. 67
Piteri dhe ujku, një përrallë muzikore për fëmijë, Op. 67
Pierre et le Loup, Op. 67 / Le Carnaval des animaux
Pierre et le loup, Op. 67, conte musical pour enfants: I. Introduction
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Pierre et le loup, Op. 67, conte musical pour enfants: II. Un beau matin, Pierre ouvrit la porte du jardin…
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba2a10e5df237fb25cad4134b8d472dabf2f51e10d34708d20a8c04e6ceeea0. 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/CH1262104702 — a six-check JSON result.
Pierre et le loup, Op. 67, conte musical pour enfants: III. Soudain, quelque chose dans l'herbe…
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b6ec939c15ec75cddcd3771bd39f68052faccb7615c5b7db1cca32f3c907ab. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/CH1262104703 — a six-check JSON result.
Pierre et le loup, Op. 67, conte musical pour enfants: IV. Il était temps…
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb26575ab113afe1498769e153740f9f52a504ab72b040c759745b0eda658c3. 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/CH1262104704 — a six-check JSON result.
Pierre et le loup, Op. 67, conte musical pour enfants: V. Et maintenant, voici où en était les choses…
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Pierre et le loup, Op. 67, conte musical pour enfants: VI. C'est alors…
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Pierre et le loup, Op. 67, conte musical pour enfants: VII. Et maintenant, imaginez la marche triomphale…
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Le Carnaval des animaux, Grande fantaisie zoologique: I. Introduction et Marche royale du Lion. Andante maestoso
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Peter und der Wolf, Op. 67 / Der Karneval der Tiere
Mozart: Symphony No. 40 in G Minor, K. 550: IV. Allegro assai
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Vergehen: works by Haydn - Mozart - Kendall
Prokofiev: Ο Πέτρος και ο Λύκος, ένα μουσικό παραμύθι για παιδιά, Op. 67
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b1e5e7e9c4b1857b8ab4a1f801b58e4265c34bcb44e114f45ab333240ff292. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/DEN962402670 — a six-check JSON result.
Die ihr des unermesslichen Weltalls Schöpfer ehrt, K. 619
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350b76ea3d769c1c586572f40825c7e42f8d59228becba9d2343efdb3cf2be68. 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/DEN962402720 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9e496ae7c0d2c6c4e70ba6c425ee41aeac1bf64f08dd1bca73695c22de085d. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/DEN962402730 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6593eb298c619b927b94af4a5f1006b1aa798241722044044be22041a4faace6. 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/DEN962402780 — a six-check JSON result.
Prokofiev: Péter és a farkas, gyermekeknek írt szimfonikus mese, Op. 67
Péter és a farkas, gyermekeknek írt szimfonikus mese, Op. 67: I. Ez egy szimfonikus mese...
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Péter és a farkas, gyermekeknek írt szimfonikus mese, Op. 67: II. Egyik reggel, jó korán...
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Mozart: Don Giovanni, K. 527, Act I: No. 7, Duet. Là ci darem la mano
Don Giovanni, K. 527, Act I: No. 7, Duet. Là ci darem la mano
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