Bernadette Manca di Nissa (born 27 September 1954) is an Italian operatic contralto who has sung leading roles in the principal opera houses of Italy as well as internationally.Stinchelli, Enrico, Les
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 0x8710877f13a2fdc953456fc719e25edc99f7f8c7c7c6634d40d76632f564f4e3. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5f58edc-6c00-4813-9edf-f5ed8b1f9b12.json and https://artists.proofprofile.net/proofs/artist/f5f58edc-6c00-4813-9edf-f5ed8b1f9b12.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Puccini: Suor Angelica: "Il Principe Gualtiero vostro padre" (La Zia principessa, Suor Angelica)
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 0x198eeb0f4bc4a40085f0e39c0f01aa9a1243639c5094893edbc22c7f8c0738ad. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GBAYC9702807 — a six-check JSON result.
Puccini: Suor Angelica: "Nel silenzio di quei raccoglimenti" (La Zia principessa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bef6d85a03f0c69c678e9f451aa1121d5cd8e91feff927b8541abf252b6a2fc. 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/GBAYC9702808 — a six-check JSON result.
Puccini: Suor Angelica: "Tutto ho offerto all Vergine" (Suor Angelica, La Zia principessa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9cde5df2f60eeacd026472caed487d51dad2e05081ff5eaf38a4d57fc74caa7. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBAYC9702809 — a six-check JSON result.
Anna Bolena / Act 1: "Si taciturna e mesta"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe5c3096a3c1363c30e497ddc821763931d3aadc9847b9b88f77ff7c0dac4c9. 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/GBF078740604 — a six-check JSON result.
Anna Bolena / Act 1: "Deh! non voler costringere"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e428502d22fa5c67cba148a7184b796fdc013203debefc67f9ebd86386de96. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/GBF078740605 — a six-check JSON result.
Anna Bolena / Act 1: "Non v'ha sguardo cui sia dato"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05745ee564590281abc96f62e47e2b6c9a0ca6f658c7c988acbf66141f1bb50f. 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/GBF078740607 — a six-check JSON result.
Anna Bolena / Act 1: "Tutta in voi la luce mia"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33850a69f70cdf8213f14b757a0538230818ee2e28cc845a8ce2dd707bd800d4. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/GBF078740609 — a six-check JSON result.
Anna Bolena / Act 1: "E' sgombro il loco"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c37ca9b780ef91bf3bfcf234b2581d5b383bd0751cc9f4edd0c88d71b73424. 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/GBF078740618 — a six-check JSON result.
Anna Bolena / Act 1: "Ah! parea che per incanto"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1c36f8d7a1831c81c39344933a0eae0c4340280f683d1de57d85dedf506d27. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBF078740619 — a six-check JSON result.
Anna Bolena / Act 1: "Taci, taci, tropp' oltre vai"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878e3e5de3c6eb6a0894acaf679e26a7cf7ab982385ff173f92ff48e30278ae0. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBF078740620 — a six-check JSON result.
Anna Bolena / Act 1: "Alcun potria ascolarti"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e3e27b98c64a90bcbeeb5dbbecb962415becac9add4248ef71b617d668401d. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBF078740623 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85509cddcb8356315ecca90b25b62c2afb46c9b82566b6336cb7e1f5dbf01bd. 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/GBF078740624 — a six-check JSON result.
Anna Bolena / Act 1: "In separato carcere"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667716593d72e233add46ae4ff2d58249c2fb2aab192e606e21bbf1a88a51797. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/GBF078740625 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a7b16d68bd23c07149f105c0a292b85ba26dbea44d096e77be1289a0b0a917. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBF078740644 — a six-check JSON result.
Anna Bolena / Act 2: "Cielo, a' miei lunghi spasimi"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e22d93e27be156fbc10953a20e6dc1c8beef900fd3ed6d6334819a06cf7143. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/GBF078740645 — a six-check JSON result.
Anna Bolena / Act 2: "Coppia iniqua, l'estrema vendetta"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d8b718528f7533e04cba9e74fe33684d4a7fa76ba8b4dfe77c85deaa25e926. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBF078740646 — a six-check JSON result.