Francesco Stephen Castelluccio (born May 3, 1934), better known by his stage name Frankie Valli, is an American singer and occasional actor, best known as the lead vocalist of the Four Seasons. He is
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36eace61957d3571b8e027c49ae5eb458893e7694be515afadcad7a23e5a029. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d34bbe83-5673-4de4-8353-5c480970d3fd.json and https://artists.proofprofile.net/proofs/artist/d34bbe83-5673-4de4-8353-5c480970d3fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16e9aaeb4bff66a7edb9003a1e54c5fccf4564ff993715c9ef8a1f5a41efc48. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRH10801431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e396bac4393f1bbf32bdc04c2637897f2ee4f0d77e3a734f9c377142f16e0c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRH10801432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f680cf582f8d21c14c202753bcaa404b0e3e95e713a58f0eaee200cb9d0a8c5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRH10801434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250e41c9f565dd41f781babf5b8d315d0e5d30eb03795b1ae5305e1f1b33cd28. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRH11000238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4f1b0e48be74ce5295c32989aa56865095ec74455206798a842debe5ef44ae. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22119622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cb5c96e7715169b1edd11cc92b0cc24b627c112845c7e1b48f0008d20bc488. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES201829203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ad23165495ce6a11bc0c0ddf74a4b18b46f32c8638067ee96d35a0ba10b476. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES201829214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f084516838488a9c52d5938bac5d1eb7cca0275f9ff6af9899053ff0304da20. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRH10801398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250e41c9f565dd41f781babf5b8d315d0e5d30eb03795b1ae5305e1f1b33cd28. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRH11000238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa047ba108d030b91253226193457326016603bd3daed69c2cb0aeacaa01d69fe. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM70749146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86db3f2b56ef60887e929c6eb2c1e1e2c1a3eca226eb88cacdf524233105a8d2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM70749187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5d3af6fd2fdfc0c40d943ee256230196a918517207d45a88c1090927ff78ac. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM70749257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae159ab6eaa58f23f7eeaeda89478a177382ccac99460c6dcf295baf9029254. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM70749263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17991c42324d71870f47979d30920583b232ef7d15b2f82450405d76af63057c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM70749267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37aead472f90e36c21b000278bfde545c3f6790dc90dffb1d11d8a02db6d05f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRH10801445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a86c18ca5f0256f72c99ee226faa25380b1a7b99acf18cf2bfee0c23919d59. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRH10801425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2728abfbe573c5412325005b263f260db5323c629dbaec635ce26613ebe8cb9a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRH10801429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f735939024954d7ae1460096b8076e4aa7f5fe5dd64299a00ae196f5cfd20c4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMO17284728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0538d84395904b5cddbd32347ef324b625d2f6ca612f794528d555ec5e0501e0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRH10801409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9b2befb6ad72ebc2686b79cf7b633e066faa512945595dbc913c2196936ade. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZJDW2000045.
Can't Take My Eyes Off You (from the motion picture Conspiracy Theory)
The Very Best of Frankie Valli & The 4 Seasons
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4f82fd354b95134076f1dda60c4e92db967fa87382709a44e4383604988249. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRH10175215.
Grease (The Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c7315936070b37743fdbd5cc5da460be27884cb4fc8db99ba7051360661967. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF057890001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce0a2ed409f8700655135c69d25fe5397c1dbea94b940c95715bb42d892862a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRH10450941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa66b5babe2dce2f058485d18aa6bfc711960d1102d17855e309cc91af2e8604. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF057890024.