Rosa Feola (born 21 May 1986) is an Italian operatic soprano. Early life and training Feola was born and grew up in San Nicola la Strada, Caserta (Italy), in a music-loving family. At about 5, she
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 0xdf18161fe2b4b0d7e02532e2cadd36a3bbd516600b9fae46f6041a072332761b. Chain 2 (Bitcoin): anchored in block 953689 (2026-06-14T20:27:17Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/69cdfee6-c6c4-4b01-b9f5-b83e7594d2a2.json and https://artists.proofprofile.net/proofs/artist/69cdfee6-c6c4-4b01-b9f5-b83e7594d2a2.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Stabat Mater: I. Stabat Mater dolorosa (Introduction)
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 0xf5f0b69e3e6994e64464bb632e2d966a186d019c18dad81e0951217554ef06fc. 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/DEE861803008 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28265ab5961f61b857803d0d0158248044dd94f710ddbef6fbe0ab359fee0f3. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/DEE861803009 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e11c33d8ce1121115f769020dfd6627f803fd8880ae00d643b023dc365e67d3. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T14:10:55Z), 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/DEE861803010 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86195c7105da1bc318f349c423033c121406c1612a10f4e2ecf1436b4761115. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861803011 — a six-check JSON result.
Stabat Mater: V. Eia, mater (Recitativo and Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44016caaafc11c726e4247af9e4d966ba4dd35c8971a0d5de18be50c221126ec. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEE861803012 — a six-check JSON result.
Stabat Mater: VI. Sancta Mater (Quartet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fda85770e5f0fcdbf73efe37e3ec37b1ef851e0cc9029a67672d5cf3a379d16. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/DEE861803013 — a six-check JSON result.
Stabat Mater: VII. Fac ut portem (Cavatina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905fd655938c4352d87eb066b9ff2e3789175d8ee853a022da4df6c2ea8a9081. 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/DEE861803014 — a six-check JSON result.
Stabat Mater: VIII. Inflammatus (Aria and Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e437ecd0cbe89a638eed5ed73b74d8e064e0e992ff2ec1ca2f82f927a7f50fb. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/DEE861803015 — a six-check JSON result.
Stabat Mater: IX. Quando corpus morietur (Quartet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ed87a96fa67dc43fadfdadf1431f237df1c4db9647f2521e8f51d7207c3762. 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/DEE861803016 — a six-check JSON result.
Stabat Mater: X. In sempiterna saecula (Finale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde23383609d105ce785b75dab1ceb00ef542df0b4ac7d9b3d323fe037bb20368. 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/DEE861803017 — a six-check JSON result.
Cavalleria rusticana: "Intanto, amici, qua...Viva il vino spumeggiante"
Coro dell'Accademia Nazionale Di Santa Cecilia
Orchestra dell'Accademia Nazionale di Santa Cecilia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a53bdaf6b23a923f6d481ca36acceac20e5da958d3402435e9a29ea76fd43fc. 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/GBBBA1043720 — a six-check JSON result.
Symphony No. 2 in C Minor "Resurrection": V. Finale. In Tempo des Scherzos
Maestro: Music by Leonard Bernstein (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff8bdbed8ad3468ee2bd8a04e9c59c7758b9c22abd6bd090cbeca8517a2798f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZ8BZ2307139 — a six-check JSON result.