Mario Lanza ( , ; born Alfredo Arnold Cocozza ; January 31, 1921 – October 7, 1959) was an American tenor and actor. He was a Hollywood film star popular in the late 1940s and the 1950s. Lanza began s
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 0xc25a3abcd9b4aaf7dcb7064b614e446e1bce4d6c8c9bd4a72ec077db1cf71004. 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/8802ecba-4f7c-4b40-8c8d-6f5fa8e5bef6.json and https://artists.proofprofile.net/proofs/artist/8802ecba-4f7c-4b40-8c8d-6f5fa8e5bef6.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Mario Lanza Sings Songs From The Student Prince and The Desert Song
Orchestral Introduction (From "The Student Prince") - 1989 Remastered
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 0x7aa6611ca5209b7da1d5d8d2e0e4367a1dadd51e1ff626edda6243728b9f207d. 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/USBC10400746 — a six-check JSON result.
Serenade (From "The Student Prince") - 1989 Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00cf6cfdbf0af8102394bc9ccd1619550be7986b7c347ab86bb6a88ea11aa738. 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/USBC10400747 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ec93aafcc5caac2b75d4773d80e1d6a4bfb2549e3e8281237617535c23e815. 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/USBC10400748 — a six-check JSON result.
Drink, Drink, Drink (From "The Student Prince") - 1989 Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc5eb3c628bb7e9a94a5e037e43bdcdc9031531ec4f7adec2388a492f54581b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USBC10400749 — a six-check JSON result.
Summertime in Heidelberg (From "The Student Prince") - 1989 Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225d829bf8df3be82955f2b95cc453fce8e0518cc7defd3b1c32f1a240d27dba. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USBC10400750 — a six-check JSON result.
Beloved (From "The Student Prince") - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0286cb7e5cdb321778c6d4b919adaf0cc12d131555a92f52c57c5fc80b703f. 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/USBC10400751 — a six-check JSON result.
Gaudeamus Igitur (From "The Student Prince") - 1989 Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea90891a576c239d5c905b484e8aa4d0cfb86451e96975cadfe3d4ff70cffee. 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/USBC10400752 — a six-check JSON result.
Deep in My Heart, Dear (From "The Student Prince") - 1989 Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4917e99f7246b79f2348a43c1ff48decf300aefa1fd8d20d4ca80a4563d5f8. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/USBC10400753 — a six-check JSON result.
I'll Walk with God (From "The Student Prince")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb31790fb1758f8baf3074726073a37e11b2e654971d44bd80ac6cea1d7cf24a. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USBC10400754 — a six-check JSON result.
The Desert Song (From "The Desert Song") - 1989 Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4027d5e7663c12ea0c8b0e06e070eded9f9bec9642cb0c86067b7eaab8f92510. 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/USBC10400756 — a six-check JSON result.
The Riff Song (From "The Desert Song") - 1989 Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf68b2c87f33a027284699725759b4706231225af13f23926a1fd55bf83dc658. 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/USBC10400758 — a six-check JSON result.
Azuri's Dance (From "The Desert Song") - 1989 Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf784e5df66ef8fa9617b8f09698a4a8a5c2256e32d4cc6f7f447f275ab185552. 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/USBC10400762 — a six-check JSON result.
One Alone (From "The Desert Song") - 1989 Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e5cb2e581b684d0203135c6054357f82bb48800036aa5167a8f74a507956f3. 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/USBC10400767 — a six-check JSON result.
Two of a Kind: Richard Tauber & Mario Lanza, Pt. 2
Two of a Kind: Richard Tauber & Mario Lanza, Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9160be5cee2bf8b4453035aa4408f9ca072ca7c45f9276c453956aa4827e234. 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/GBGN32243705 — a six-check JSON result.
Mario Lanza, Vol. 2 (Collection "Les voix d'or")
La Traviata: Duet "Libiamo, ne'lieti calici"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd27ddba46aa394f49fe885fe2d2666630bf47d30d272fc7c55e51b15ab23148. 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/FRW110802320 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76dd6a25c83d35ebe84eecfa91ae468d562dffd4669d7b63ec1144b6e75a025. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FRW110802325 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82316a34905d90a2665c377fce50998f025c59bb5423c2298cf1ea767ee4c50. 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/FRW110802326 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a3484301f7afe8e3db333764b147a0435f7090296b924971837a06151453ce. 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/FRW110802327 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7655898d4b67bba09d9ee07fe3373cb847ee158b93ca41effd0da1610d8281. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/FRW110802330 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9236454eff60c28e86daaa04b3d1e90530123933e61e4fa0ad219ad30c8fdbc. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FRW110802331 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd479ccd592525ff79a1835b1fe3171f6014a7e9c3f0a53532bb3bf23232fc823. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBURZ1407102 — a six-check JSON result.
Be My Love (from "The Toast of New Orleans") - 2006 Remaster
That's Entertainment (The Ultimate Soundtrack Anthology of MGM Musicals)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141aef835fd39f2457622f97cdac9070bca40fc79686b6405e416117a2f14e11. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/UST1C0100510 — a six-check JSON result.