Francesco Xaverio Geminiani (baptised 5 December 1687He was possibly born 3 December, the feast day of St Francis Xavier. – 17 September 1762) was an Italian violinist, composer, and music theorist. B
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bff45680cc13fe3f716e397d36ef9d98d2fe23293c9699ad38021dbc5346839. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dbcb06b6-1d4e-4d68-8d22-63e61b8e7f7f.json and https://artists.proofprofile.net/proofs/artist/dbcb06b6-1d4e-4d68-8d22-63e61b8e7f7f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Concerto No. 4 in D Minor, Op. 3: No. I, Largo e staccato - Allegro
Francesco Geminiani: Concerti grossi, Op. 3
Concerto No. 1 in D Major, Op. 3: I. Adagio
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeff024e09a476992e4eeaf262492b6b2a629caa02ec187e70089b92dcda66e8. 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/ITRBW2400801.
Concerto No. 1 in D Major, Op. 3: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad27b77573d4bbe9e6e7ff150b340eb2fd285d8f668aa072684f8acd157c183a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITRBW2400802.
Concerto No. 2 in G Minor, Op. 3: I. Largo e staccato - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4b8137d81b70cf3921696ad5b069abfd6a1bbd92c3c7aded484895dd6e6d4c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITRBW2400805.
Concerto No. 3 in E Minor, Op. 3: I. Adagio e staccato - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf681467e56253335fb7e5b6d476032d54b006e9e2654467d90734ea7939929e3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ITRBW2400808.
Concerto No. 4 in D Minor, Op. 3: I. Largo e staccato - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9421317fb8ae2294c232f94665a1a099e43bac5c03acbac25eaed67b92226ace. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITRBW2400811.
Concerto No. 4 in D Minor, Op. 3: II. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23479a618a636355bb5759e0c9b9a9fde1639cd225d535e704e29a454d66925. 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/ITRBW2400812.
Concerto No. 5 in B-Flat Major, Op. 3: I. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71fa0c207410d8f83ce886347da5426bd3542e7ae0572a1d2826e885d2257206. 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/ITRBW2400813.
Concerto No. 5 in B-Flat Major, Op. 3: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b08c5ea56137b4e9f5c826fd1bb87ea781880cbb19f378fbaec4a9ba1323606. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITRBW2400816.
Concerto No. 6 in E Minor, Op. 3: II. Allegro - Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a06c9f4cdbb6f12aecfb34dbbd3640971cd81268642935c6a0f7ef090d68b2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITRBW2400818.
Concerto No. 6 in E Minor, Op. 3: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f8a3b4fee0fb9030abd461719264d2919bc896d126dc071df462d465ceae85. 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/ITRBW2400819.
Concerto No. 2 in G Minor, Op. 3: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1331e83a180105a120f9e77ebb8f42dd8669ed87ae9d507f0534bba5d898b9. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:48:57Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITRBW2400806.
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
Concerto No. 1 in D Major, Op. 3: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ebd931f3ecfba9682775794ac8992924d55f4b95d0ada938af0389f059d84d. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/ITRBW2400803.
Concerto No. 1 in D Major, Op. 3: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42276fa74c418dadfffe08db780e03ac68b3eec5acbd7f3fcfd19666fb8b95ab. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITRBW2400804.
Concerto No. 2 in G Minor, Op. 3: III. Allegro [Canone a 4]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf291f5537320e0248cf62f847f13be9f3cf0de5bc382aec487b3a60071f05588. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITRBW2400807.
Concerto No. 3 in E Minor, Op. 3: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c53730b36dee8dcf9d348528daeb73944d3a7d8fdb03a84a8e6ce54c02b68d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITRBW2400809.
Concerto No. 3 in E Minor, Op. 3: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493c469184e08aecb5d62d081fada263becb2b1a0faebc684c71622632e5fac4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITRBW2400810.
Concerto No. 5 in B-Flat Major, Op. 3: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a3c184386d998b24684a9fccf174376c58274fffcd8cec72cb250f796e7e5c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITRBW2400815.
Concerto No. 6 in E Minor, Op. 3: I. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8158e70f6b0c886c196e98b7545e17d87dd6a5632e9b18b93a600a0abbc4c06. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITRBW2400817.
Concerto grosso in D Minor "La Follia" - After Corelli's Sonata "La Folia", Op. 5 No. 12
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c23533e0e54eba102506e3d38e964f154b406c42e15c800100cafb16c1b74d7. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITRBW2400820.