thumb|Giuseppe Patanè picture Giuseppe Patanè (1 January 1932 – 29 May 1989) was an Italian opera conductor. He was born in Naples, the son of the conductor Franco Patanè (1908–1968), and studied in
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 0x277eb3a3cdb2b2afb39b00b007884ba0609b7777c7ef4b8a544c18ca45ff81b0. 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/0cece9e8-3529-4e42-879a-eb41c18d69d6.json and https://artists.proofprofile.net/proofs/artist/0cece9e8-3529-4e42-879a-eb41c18d69d6.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x95185023171a368fc09993f75ac2c05bd8c2b4d2908b4864523a15ae62471130. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/NLA508810401 — a six-check JSON result.
Maria Stuarda / Act 3: "E pensi? e tardi?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3b71f0667403f140a5c4b7046aa66aa209840c0bb0109fea407e5054859856. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLA508810416 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c9a393859af59a7d3a10f4d39732508d234321f9ccc7742cbbebae7d3f8fce. 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/NLA508810402 — a six-check JSON result.
Maria Stuarda / Act 3: "Quella vita a me funesta"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7259f6f15cddc048d7c6e3867a1c0ef2d8f8ec61912e1f330b14f17c7c349106. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/NLA508810417 — a six-check JSON result.
Maria Stuarda / Act 1: "Sì, vuol di Francia il Rege" - "Ah, quando all'ara" - "In tal giorno di contento"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0ea84ee0f69651f81ef2296f1caa6c8639fd3febd57ec5dc7306b01d427764. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508810403 — a six-check JSON result.
Maria Stuarda / Act 3: "Regina! - A lei s'affretta il supplizio" - "Deh! per pietà sospendi"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e33e4562ea9a768bb16a77bece1fb4dd5c064bb09c867a1d39dba1dd716ef78. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/NLA508810418 — a six-check JSON result.
Maria Stuarda / Act 1: "Fra noi perchè non veggio Leicester?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbef8291aaa79e5f7fe242ed076bf2272069ed57adc844901790427d6ea0c127. 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/NLA508810404 — a six-check JSON result.
Maria Stuarda / Act 3: "D'una sorella, o barbara"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4c0a218bb35e27a54cd4e2c81e3723efeaf44e745bcfb5d7fccf85f65e56b2. 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/NLA508810419 — a six-check JSON result.
Maria Stuarda / Act 1: "Questa imago, questa foglio" - "Ah! rimiro il bel sembiante"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2656c8dba787f50cef022a2fc65f39abdcb2fcf23ef19ddfaa3685ae3dbcc5. 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/NLA508810405 — a six-check JSON result.
Maria Stuarda / Act 3: "La perfida insultarmi anche volea"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3670a8f0cbeb0d64f8b2d730ed5a513317f87b5e5b7293a73d85e5730c22c8e. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/NLA508810420 — a six-check JSON result.
Maria Stuarda / Act 1: "Sei tu confuso?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2952f61c74f62e6c9b9bd5d1712390003de3693c55b1c5331666ca4dbd675ad. 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/NLA508810406 — a six-check JSON result.
Maria Stuarda / Act 3: "Oh mio buon Talbot!" - "Delle miei colpe lo squallido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364ff3474b714e332c3601391b05fb980d85a079fcea33c0ee1e064df20d339b. 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/NLA508810421 — a six-check JSON result.
Maria Stuarda / Act 1: "Era d'amor l'immagine"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdf530f0f6f4d06b8095ec423215dbf7025cffc3117664ad0be0863f0492835. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NLA508810407 — a six-check JSON result.
Maria Stuarda / Act 3: "Quando di luce rosea"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32dc8383f552fcb6c461cf6d30d5d284bfd9bc028eb46ac15429cbde3591db0. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/NLA508810422 — a six-check JSON result.
Maria Stuarda / Act 2: "Allenta il piè, Regina"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55ddde29d3d7e7f9b374c5423180c282aa56280e1838b09d9d48f1cb0e41bef. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLA508810408 — a six-check JSON result.
Maria Stuarda / Act 3: "Un'altra colpa a piangere"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30522eb6606fa015e02bd7c1b06715524baba95174805344bb9743292b3fd26. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/NLA508810423 — a six-check JSON result.
Maria Stuarda / Act 2: "O nube che lieve per l'aria"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b8e72a0c7efa0691423f457f578d9b286efc7e73edcd96e5ccce22f1b38994. 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/NLA508810409 — a six-check JSON result.
Maria Stuarda / Act 3: "Vedeste? - Vedemmo. Oh truce apparato!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe785aa9f411b10bc11d14dcfbb864a49b2562240f11b99e685bef5f1b319b98. 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/NLA508810424 — a six-check JSON result.
Maria Stuarda / Act 2: "Ah! non m'inganna la gioia!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817ea14d17626c196f3a0db60f4d600a5675611e66051345580c7d1588716289. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/NLA508810410 — a six-check JSON result.
Maria Stuarda / Act 3: "Anna! - Qui più sommessi favellate" - "Deh! vi rivedo alfin"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1fc15fb05e35f47d422aab1e67abd47eebbff669353dc210fd21ec5870f06e. 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/NLA508810425 — a six-check JSON result.
Maria Stuarda / Act 2: "Da tutti abbandonata"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77b78b5ec35e2c2b5758b2957ba2887fa4fc34f80296b77d1b808073fc3107e. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/NLA508810411 — a six-check JSON result.
Maria Stuarda / Act 3: "Deh! Tu di un umile preghiera"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13def77252b345273cdf6c56916f79469226f552c9d7f0382604289a5c765a4e. 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/NLA508810426 — a six-check JSON result.
Maria Stuarda / Act 2: "Qual loco è questo?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd718c22f268f3266f3455941810aa639c487be5494170554e86a6a24428f00a. 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/NLA508810412 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d81081c29a16aad9b75caf5405c43807cad71981e2dd8ce38df9d0b80a8144. 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/NLA508810427 — a six-check JSON result.
Maria Stuarda / Act 2: "E sempre la stessa"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f2b26a17a68147ff28a7dec82d9df24365bbd4b586efe648ce4184b58f1bfa. 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/NLA508810413 — a six-check JSON result.
Maria Stuarda / Act 3: "D'un cor che muore reca il perdono"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e268a80177378edcb81042789eacafdf0c357d156f6a239514b36057b942d85. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/NLA508810428 — a six-check JSON result.
Maria Stuarda / Act 2: "Deh! l'accogli" - "Morta al mondo, e morta al trono"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca649f0cfd9279dc02a501d84bd349c348fb71d1038925d600d55deb5df495d8. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/NLA508810414 — a six-check JSON result.
Maria Stuarda / Act 3: "Giunge il Conte"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f688adb71467aeb31f1c3e25df8e854016c60151a5c3cf13d591b37816e21d. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/NLA508810429 — a six-check JSON result.
Maria Stuarda / Act 2: "Va, preparati, furente"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0add6ec64caa4b36e9ae2eea5aab14ad74ba0c621dfc7f0f006d56527a147837. 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/NLA508810415 — a six-check JSON result.
Maria Stuarda / Act 3: "Ah! se un giorno"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bd7d104da6bf8789ab91dcf54c20f37cd30c948522c8dd686ff9efea34fe2d. 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/NLA508810430 — a six-check JSON result.
Fifty Years of Hungaroton (1951-2001) - Conductors
50 Years of Hungaraton (1951-2000): Singers
La traviata, Act I: Act I: Che e cio? (Alfredo, All, Violetta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8704f1faf1251c1bb9429b04fab1f4959e315e0e84749ffea3eea6dbd0e4ede4. 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/DEB959334404 — a six-check JSON result.
Verdi: La traviata (Bayerische Staatsoper Live)