Pina Carmirelli (23 January 1914 in Varzi – 27 February 1993 in Capena) was an Italian violinist. She started studying music and playing in public when she was very young. She was a pupil of Michelan
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 0x8249cab99eb611eb8fd8ec0b4e251bca23966b45a027d4df8855991bc3d7f0e9. 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/ade52625-7418-4056-949d-4ea0751d3f17.json and https://artists.proofprofile.net/proofs/artist/ade52625-7418-4056-949d-4ea0751d3f17.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Piano Concerto No. 21 in C Major, K. 467: Ii. Andante
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 0x13c1872efd13b8df0918d37756a8eaa1a1c78b2d10eeed35f78a14191d1df5d4. 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/CAAGN2216802 — a six-check JSON result.
Sonata for Piano & Violin in a, K. 12: Ii, Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f71b006695b7150a6aab83d29eb4b98c19255b5316bed3d8f93548b0ca8ac2. 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/CAAGN2216911 — a six-check JSON result.
Serenade in G, K.525 "Eine kleine Nachtmusik" - Orchestral version: 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8700a1ece4cff4f264043186a40d68438472ff635aa7e807f7fa4d542b594c2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NLA508208901 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb99db48e4d98bf3fc1de71b03d01f58bc0439cc4568a315cceea438589b3496. 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/GBBBC2200599 — a six-check JSON result.
12 Concerti a 5, Op. 5 - Concerto a5, Op. 5 No. 3: 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f8020ce95a61b1553630ddec2fd74c2092011e897e6a0caf72ef7c6f6d5cf2. 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/NLA508022919 — a six-check JSON result.
12 Concerti a 5, Op. 5 - Concerto a5, Op. 5 No. 3: 2. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250491b11ccb658fe3a66bb193348a82c38dad2e817ee9a9a0fe60d5732160f9. 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/NLA508022920 — a six-check JSON result.
12 Concerti a 5, Op. 5 - Concerto a5, Op. 5 No. 3: 3. Presto - Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732fb5dbe5739ad1131fbb9cb76ba078623c55634a9972e77b1d0a73ef4ebc65. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/NLA508022921 — a six-check JSON result.
12 Concerti a 5, Op. 5 - Concerto a5, Op. 5 No. 3: 4. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9029520bf8a1bb551bbe21075da8d217fa600afcabd79eff4d13e2814931e5. 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/NLA508022922 — a six-check JSON result.
12 Concerti a 5, Op. 5 - Concerto a5, Op. 5 No. 4: 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f84cb89e32b107fd1bba866bcc28699d4671c4c3151702a3aa8f492204b4583. 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/NLA508022923 — a six-check JSON result.
12 Concerti a 5, Op. 5 - Concerto a5, Op. 5 No. 4: 2. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821e161acc0324d9fd688d057e1032dedd9a726e44e3cb66f9e4c62c184d3dd0. 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/NLA508022924 — a six-check JSON result.
12 Concerti a 5, Op. 5 - Concerto a5, Op. 5 No. 4: 3. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc25813e824992e6fae801546ae2b4ab91e1380ed97211e4afd2ad6cde28590a. 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/NLA508022925 — a six-check JSON result.
Concerto grosso in F minor, Op. 1, No. 8 "Christmas Concerto": 1. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2c6039ba686a79ad0126542482de55aaa633ab179dc40622fc99e7f7427df5. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/NLA508435712 — a six-check JSON result.
Concerto grosso in F minor, Op. 1, No. 8 "Christmas Concerto": 2. Grave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9003790d1f4b29e9d63fcc563afb2299f75593887eb1c1a55da941e719315e1d. 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/NLA508435713 — a six-check JSON result.
Concerto grosso in F minor, Op. 1, No. 8 "Christmas Concerto": 3. Vivace - Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89c7facda53c0e409188d19380d378596659a076e0080714da12d4d3eee6301. 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/NLA508435714 — a six-check JSON result.
Concerto grosso in F minor, Op. 1, No. 8 "Christmas Concerto": 4. Grave - Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5cb0c35acd222697b064bac8c7844a1f50a8d471ed2076e78519fa7f0f2570. 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/NLA508435715 — a six-check JSON result.
Concerto grosso in F minor, Op. 1, No. 8 "Christmas Concerto": 5. Largo andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cffb2c8704a0f0e74218ec9b067b91fdaf3f0516e54440153b5b8b32b97e055. 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/NLA508435716 — a six-check JSON result.
Concerto grosso in F minor, Op. 1, No. 8 "Christmas Concerto": 6. Andante - Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09db61e65ec7e03c32ea481badcc00078bf472f9f4791fcf790552818ec20b4. 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/NLA508435717 — a six-check JSON result.
Concerto Grosso In F Minor, Op. 1, No. 8 "Christmas Concerto": 7. Pastorale (Largo andante)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c7b6d07d4a23668d2b1325cb73d56e6215e301e15e3b60d3e281032e10ada3. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/NLA508435718 — a six-check JSON result.