Gabriele Baldocci (born May 10, 1980 in Livorno, Italy) is an Italian pianist and composer naturalised British. Baldocci is known worldwide for performing with the legendary Argentinean pianist Marth
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 0x0dfbb1b32f37d2766450af794cf448da7b6e7e7fce9139117f63676788678775. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90773f02-21d6-44d1-8dd5-23ecb1111b8b.json and https://artists.proofprofile.net/proofs/artist/90773f02-21d6-44d1-8dd5-23ecb1111b8b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Liszt: Beethoven Complete Symphonies, Vol. 3
Symphony No. 5 in C Minor, S. 464 No. 5 (After Beethoven's Op. 67): I. Allegro con brio
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 0x8c9d8ba26be9886b174b4b75b6315d197c55f8e36f07e3ade093491198e8710d. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/ITN322321133 — a six-check JSON result.
Symphony No. 2 in D Major, S. 464 No. 2 (After Beethoven's Op. 36): III. Scherzo. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557f26698c8004402351bebef1c0390cb9da449c1da9c6d294ef5cc149613305. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/ITN322321139 — a six-check JSON result.
Martha Argerich - Daniel Rivera - Néstor Marconi, en el Teatro El Círculo de Rosario, Vol. 4, Homenaje a Astor Piazzolla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabd340eed7deef4eaf093d8c62d577e5e2600c1ebe58e3fa7ea96e964e6bce9. 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/ARF241427401 — a six-check JSON result.
"Milonga del Angel", para Dos Pianos, Viola, Contrabajo y Bandoneón
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544e1848bcdc71dece6e463ab9d53a6a81ba3cafd196ab4929fbff7037b44884. 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/ARF241427402 — a six-check JSON result.
"Oblivión" del Concierto "Aconcagua", "Tema de María", "Verano Porteño", "Cadencia" del Concierto "Aconcagua", "La Muerte del Angel", "Lo que Vendrá", "Decarísimo", para Bandoneón
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d712743ce610aa2fd770535c105b207395f6531a5baaf2451239554aa8c8d8. 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/ARF241427405 — a six-check JSON result.
"Para el Recorrido", para Piano, Viola, Contrabajo y Bandoneón
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5f56cab02812fd67f08ebdb3b9dc3fd2d16aa8089ac1842d336b0a05d222d8. 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/ARF241427406 — a six-check JSON result.
"Libertango", para Piano, Viola, Contrabajo y Bandoneón
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd525d8b2e2fd41df36498433e419ca58c00000a321f79311177abfdb3607b3d. 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/ARF241427408 — a six-check JSON result.
Astor Piazzolla: Las Estaciones del Ángel (Adventures of a Double-Bass in Buenos Aires)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e7bb3ed99054c4b274e0d4092e825c31d54cea788a78c1f6b7addb82eb2eb7. 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/AU3SE2301768 — a six-check JSON result.
15 Preludes: No. 2. Allegro, ma espressivo e delicato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9d20e9349535e04b8fe7beda9bd02d3618a5d6a9fb3d21acc0985bd8079f84. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AU3SE2301769 — a six-check JSON result.
15 Preludes: No. 4. Andante sostenuto ed espressivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85ff28e531970eba8384abbbce28c65b50d929136816f1a678c7e59477925bd. 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/AU3SE2301771 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3411f9a421c671a616d2d213b06e42d198ece32988f50f6a59881a3a7cf0900f. 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/AU3SE2301772 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01bd55b8648e2e733907b0861d35da219bc7d4c1a197c14577cdd439c979aa99. 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/AU3SE2301773 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6970a462d25c4b97ff42c3bf18882f0f26f023434dac5874f2a8cac9da7a529. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/AU3SE2301775 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e61bd8e3b421cc1c8b4431740e4e41f3553a54908d7aa987a2d805e99ea76e5. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/AU3SE2301776 — a six-check JSON result.
15 Preludes: No. 9. Allegretto quasi andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b154e31c61a5c6d03b944fb1aef762b40ce56d6991d82e8db60ccbc8d46610. 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/AU3SE2301777 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec6dec2e4c5159d0ebfa00be9d675783d656b1aa86efa105b3cf70e0182aced. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AU3SE2301781 — a six-check JSON result.
Liszt: Beethoven Complete Symphonies, Vol. 2
Liszt: Beethoven Complete Symphonies, Vol. 1
Winkler: Chamber Music (Piano Quintet, Cello Sonata, Light Sonatina for Piano)