Giuseppe Giacomini (7 September 1940 – 28 July 2021) was an Italian dramatic tenor. Biography Giacomini began his vocal career studying with Elena Ceriati, Marcello del Monaco and Vladimiro Badiali.
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 0xb0c7be7578d585ba154bc933669ae9256c3a4e4eaafc5c653e71ef4c707f2ade. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e4bb884a-0878-4720-bdba-af3331cb8c87.json and https://artists.proofprofile.net/proofs/artist/e4bb884a-0878-4720-bdba-af3331cb8c87.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Mascagni: Cavalleria Rusticana / Leoncavallo: Pagliacci
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 0xd054bd105e2e565c16b9d4f843afeac8de31422ab4ce8818433bf91a5bde642a. 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/NLA508905201 — a six-check JSON result.
Cavalleria rusticana: "Regina coeli laetare...Innegiamo, il Signor non è morto" (Preghiera)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5c5af67d0153de7fb97f26d7c71173f01fbb7dc4e5cb8c95c1f043c070f146. 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/NLA508905208 — a six-check JSON result.
Cavalleria rusticana: "Voi lo sapete, o mama" (Romanza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619b5dcad8bc864201e18a8027911534a5fd342d23c56d01c7fcc46b77579e4d. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/NLA508905209 — a six-check JSON result.
La fanciulla del West, Act III: Ch'ella mi creda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252b27f3a8ca5c45fd34199884412c24ba3b793d30352f4b3d9289982ff51228. 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/ITDQ79825264 — a six-check JSON result.
Il Mito Dell'opera: Giuseppe Giacomini (Recorded 1969 - 1996)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2cc188f5903add96158d5c72727307d7148d1f049c011d9b40841b43eaca43. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ITDQ70941211 — a six-check JSON result.
Guillaume Tell (William Tell), Act IV: O muto asil del pianto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ccc88ab974fe50897d1febb6a998108e3bb65b2d5b2b0e7939c9789c2e12af. 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/ITDQ79925271 — a six-check JSON result.
Lucia di Lammermoor, Act III: Tombe degl'avi miei … Fra poco a me ricovero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f977ed5c6a4d55eba6e94c639de877043e1de1ca800ba5c99bf4e36e7a632a8. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/ITDQ79925272 — a six-check JSON result.
Rigoletto, Act II: Ella mi fu rapita! … Parmi veder le lagrime
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3633a56b8fc0d9f520aee583e81ebadb1aa002593aca6f0ff1a79a64540ef35. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/ITDQ79925275 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cef619c1da41fba846c36c68c9ee20efb537cfeb6820043ff032a0e191f41b9. 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/ITDQ79925278 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9824d00bde77f65d305adcdd0138ae4f17516c51eb2e2508cc8af3aca80920f. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/ITDQ79912527 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f015dbafcf48bc1af441fef2927114241c810d727faf694eb666b85a51161a. 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/ITDQ79922527 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ca1f13e83e42cb58af674a5296238c9d9286ee99b752a6c40a24d39a906ff7. 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/GBHZU1004810 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2af9ef82c501d6ee1d512ceb2cf968b4ce07dbec99a6142788cfcf70d3f7de. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/NLA508906201 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197d7487a20c3204ad0687415f304c3205ef96ee9b8e288b5e06d5e71b405ce2. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/NLA508906215 — a six-check JSON result.
Tosca / Act 1: "E sempre lava!" - "Angelus Domini nuntiavit Mariae" - "Che fai?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7173fb4e6adc2052af010523e72ad996db4500d73597dc33b6f5a23aaa80d975. 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/NLA508906202 — a six-check JSON result.
Tosca / Act 2: "Ha più forte sapore" - "Spoletta è giunto"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac83720f467d2b169f5f1ae61ef3b06faab0e826744a16e78471d76078b516a. 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/NLA508906216 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a03c3b4ade6029d8b3c6b082a12da492d0a040435e9f0a39515267fb1e4eb0. 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/NLA508906203 — a six-check JSON result.
Tosca / Act 2: "Meno male!" - "Egli è là"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28025a139eb407f87fca03628035dc6cc3ea7b5dd54c14cd441ffcb0acd8c251. 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/NLA508906217 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c3d26fbb468e795857cc16acb8a88a992274aecf61668394a5df45c18d957c. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/NLA508906204 — a six-check JSON result.
Tosca / Act 2: "Ov'è Angelotti?" - "Mario, tu qui?!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a72de319cf9723f9abade45b78ae901792f099e572945f1a519d9c2f84fe15d. 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/NLA508906218 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b2eb4065cf12fb24e29ce85ba5b0d1175083251599d970300fe07cf4e38da4. 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/NLA508906205 — a six-check JSON result.
Tosca / Act 2: "Ed or fra noi parliam da buoni amici"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e7077f02c054f898d7604d5e3aacca7d73ea9a32c7cb1898bf7f3b3d8bc91c. 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/NLA508906219 — a six-check JSON result.
Tosca / Act 1: "Mario! Mario! Mario!" "Son qui!" - "Non la sospiri la nostra casetta"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61851ea05eb6f745edd190b14c025d7e819c4dda74723a1f881e88329c8c1199. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/NLA508906206 — a six-check JSON result.
Tosca / Act 2: "Sciarrone: che dice il cavalier?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f57f4d656fc2f1a52f187f148f51da161cca12ee0021c4869847431abd0b7b. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/NLA508906220 — a six-check JSON result.
Tosca / Act 1: "Ah, quegli occhi..." - "Qual occhio al mondo può star di paro"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9160de74626e351cfbde935ae68b2928d33fe4a0a0253e4dcbaa8f9b8d69c484. Chain 2 (Bitcoin): anchored in block 960177 (2026-07-30T00:21:01Z), 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/NLA508906207 — a six-check JSON result.
Tosca / Act 2: "Orsù, Tosca, parlate." - "Mario, consenti ch'io parli?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c24fadfe94e082dbf80415f948fe5c1c6df1649fee36b26a6016cce080f8b7b. 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/NLA508906221 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d497292339d544bab10f8d331e0af4993822ff5274c97082ddd4bdf506849af. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/NLA508906208 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d18d2582c00893f2cb4992861c3acce02c0bbd374a92f95343778fb7150eac. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NLA508906222 — a six-check JSON result.
Tosca / Act 1: "E buona la mia Tosca" - "Siam soli?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8c7b56eac67803c35b886b0db4f81829c97497f749a7902ad84566afec50e7. 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/NLA508906209 — a six-check JSON result.
Tosca / Act 2: "Nel pozzo del giardino. Va, Spoletta!" - "Eccelenza, quali nuove!" - "Vittoria!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f87cab1a36c48d61cf3943eb2c60f6c2c2104bf3b655fbe8f2204139df65975. 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/NLA508906223 — a six-check JSON result.
Tosca / Act 1: "Sommo giubilo, Eccelenza!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba90d4326aab4edbe27b4c881898771917357fe3000e2f1b8b22e9890c3c345e. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/NLA508906210 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a1940370e06709f8d302aa4626c612b601db321d190e4e74d67ab473c9aed6. 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/NLA508906224 — a six-check JSON result.
Tosca / Act 1: "Un tal baccano in chiesa! Bel rispetto!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010c4925e77ec09bce77783141e70e50c0b58318b4abbe1a6b54a6ceb772dacc. 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/NLA508906211 — a six-check JSON result.
Tosca / Act 2: "Vissi d'arte, vissi d'amore"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d08b275ce7535b0518e81ec450f0d7210114e25f1be086436af2e1335c3b1bc. 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/NLA508906225 — a six-check JSON result.
Tosca / Act 1: "Or tutto è chiaro..." - "Mario?! Mario?!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0935d79f23d8e94648fd6e46c7c44b74995b45a7d907e9d1cf10e6ca719f7e5. 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/NLA508906212 — a six-check JSON result.
Tosca / Act 1: "Ed io venivo a lui tutta dogliosa"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8e7bd69ec352b39191fe3bb09e3378114dc967476d73f8d47955bc77b33dce. 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/NLA508906213 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe087767d3984f4b33a0d71f4deb0f58300010d611cea7990d8fe3c327bbf5b65. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NLA508906227 — a six-check JSON result.
Tosca / Act 1: "Tre sbirri... Una carozza... Presto" - Te Deum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975e55ced3d443f505540b2b783b053707c927232c58f670610582e51d5dcd7c. 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/NLA508906214 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08849323141428ba0c88fcd98de03595cfd3fd91adb7f695b723204a3d3034c8. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/NLA508906228 — a six-check JSON result.
Tosca / Act 3: Prelude - "Io de' sospiri"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07b95462cb26a4b8b0a0779a1597968dd4e6a2e7e75c8a9dcb08b8051202b08. 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/NLA508906229 — a six-check JSON result.
Tosca / Act 3: "Mario Cavaradossi?" - "A voi"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc418fc89f509cdacb37395816f561986ecf294b08d2b83155040ba92ae336c36. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/NLA508906230 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e39154ab40c97f431b57e54ee2142ba752d49abcc891d76e25445917a7f37af. 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/NLA508906231 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed570b3e30cfd56219fb4be6ead50a874566dd7be217748b6a14563a47231770. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/NLA508906232 — a six-check JSON result.
Tosca / Act 3: "Franchigia a Floria Tosca"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6524fb42e68d790946d68542c4bfb871e25a4e5813f062b43f94ddcdee37dc25. 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/NLA508906233 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe123c33cdc07affaaed7271362789a36edeaa5d463ddc96dec6f64ad2f0c29c3. 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/NLA508906234 — a six-check JSON result.
Tosca / Act 3: "Senti... l'ora è vicina"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a3bedbc2449185a4e12e7928c3f88b39e9f12a1bf64cb3dcb5e28825b19acd. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/NLA508906235 — a six-check JSON result.
Tosca / Act 3: "Amaro sol per te m'era il morire"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2198de9a0a4c44b29e1fc6015d31a725fbaa6ebc565860154f2c12a0602ca811. 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/NLA508906236 — a six-check JSON result.
Tosca / Act 3: "E non giungono" - "Trionfal di nova speme"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d5d01dbdeb33ce719f44389c207cc071dde0175ace8af685d938858ac38a62. 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/NLA508906237 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e411344a3dd554370b42ea1b69fddb8d97733d9df13c1bd5699603735d1d1da. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508906238 — a six-check JSON result.
Tosca / Act 3: "Come è lunga l'attesta!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c7d4a09728db1ff7f0ab53b34fdc335e3f587c13f1cf8e632aafad01e613f3. 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/NLA508906239 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9429ed00f0b828239762224016823a067cca987d435b2f463e42803233b1edc. 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/NLA508906240 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd054bd105e2e565c16b9d4f843afeac8de31422ab4ce8818433bf91a5bde642a. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NLA508905201 — a six-check JSON result.
Cavalleria rusticana: "O lola ch'ai di latti la cammisa" (Siciliana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb366a7b520c7464da9f3d0d8807bd3f2f345807b17bbfed89c15454766fdc08. 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/NLA508905202 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc2d355b3bdf8e5487bd88736580e4990be924782b0ef28f887aed33ecdf799. 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/NLA508905203 — a six-check JSON result.
Cavalleria rusticana: "Gli aranci olezzano sui verdi margini"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2440b589bb98253c8294800854514d5dc80a43d38193f66050816228ff34afa. 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/NLA508905204 — a six-check JSON result.
Cavalleria rusticana: "Dite, mama Lucia"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b4665d5925988b9dc8eeca4e39643e0383162d82f257b9de05707c5409c8d2. 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/NLA508905205 — a six-check JSON result.
Cavalleria rusticana: "Il cavallo scalpita"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955a417f3d8509b710e705ea52579bb9fae269bf154d6974ea3ca549d38eb970. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NLA508905206 — a six-check JSON result.
Cavalleria rusticana: "Beato voi, compar Alfio"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b0c186c372f4b8b140c8ab273e0531c1ebfc88f1dd8e555adba4e8fa1954a6. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NLA508905207 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5c5af67d0153de7fb97f26d7c71173f01fbb7dc4e5cb8c95c1f043c070f146. 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/NLA508905208 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619b5dcad8bc864201e18a8027911534a5fd342d23c56d01c7fcc46b77579e4d. 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/NLA508905209 — a six-check JSON result.
Cavalleria rusticana: "Tu qui, Santuzza?" (Duetto) - "Fior la giaggolo"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffea9278f8754948ee6f008cc989669a91ed2855f1cea7b2e4060d96c68071cd. 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/NLA508905210 — a six-check JSON result.
Cavalleria rusticana: "Fior di giaggiolo"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f666b2dc07333eec8c8ad542897c13d623282f4c1e584f8da7138061dc0c4e3. 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/NLA508905211 — a six-check JSON result.
Cavalleria rusticana: "Ah! lo vedi" (Duetto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6175aa7d9e1d276e1fd1e15004a21c7804fb9382d22a5a7003e53f17fb92840. 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/NLA508905212 — a six-check JSON result.
Cavalleria rusticana: Intermezzo sinfonico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4cbd5c7277a122457a6dc68332fdff247b0a49356e8d95e21d3df06c680dc5. 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/NLA508905214 — a six-check JSON result.
Cavalleria rusticana: "Viva il vino spumeggiante" (Brindisi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd507bcaa0648fa346c4813bf14d2b5ce75e4c63999d9d0f0122d2a9f8db0d82e. 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/NLA508905216 — a six-check JSON result.