Federico Bertollini (born 4 July 1992), better known as Franco126, is an Italian singer, songwriter and rapper. He rose to fame in 2017, as part of the duo Carl Brave x Franco126, with the album Pola
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 0x1491aad99ce985dfb526a0bdf3d6d7c56825ae0472fdaa5c6bacec8393c1c20b. 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/be5cb833-74fc-42d4-9bcb-3f9b381faf3d.json and https://artists.proofprofile.net/proofs/artist/be5cb833-74fc-42d4-9bcb-3f9b381faf3d.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 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 0x9915633f70d01fbb14e65e91a05c4f5df2e00ca853f1e89cd8c3f2e8c74d7203. 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/ITLGE2000064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6747da96e19d741c9b477553a3d0810cf511f5f61b412c6b38a1c34e961779fe. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITLGE2100115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbf94e58baac4d3ad2ea949256aa089e00c452d8d2ed889d86dcee417e34484. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ITLGE2100117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18d47ed0ef07797e2c0cb5d80f7c348d9a665f2188cb653d77b1ca44fb05534. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITLGE2100118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8001986a9ff9216bff5832252ec33a04a63c2ce44085396569480be0a4ef017f. 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/QM4TW2391679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fd501a71ec07cd91232a30542977f768501afe1a94a27ad22171f0b2d34030. 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/QMDA62265017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5528e9b644eb5f4510535823c2137677cc74d280a5799a14beaf9f192543b716. 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/QMFME2253331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88458f91ac2957340f28c6f1c774db87970c6e0b1854e8c73e18bf85ff115d0. 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/QM4TX2343826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c76fd632d5bbea96644fa6ba5fea7aa3eea4a4db7d730ab12f36aa6b68ba620. 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/QM4TX2343833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3690546441dc66ad749a6ebeb51ceb3c6c8f918c6774cef8f9d997b21133bac. 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/QM4TX2343834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a86db47a2924acfca35c4dd6e872dfecdebe8b5a5582f952bb2620e7c1af02. 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/QM4TX2343828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10aa76e234ca1bfa7a61658e54c01dff6a872ce1aa57a34d4d76e3590db17061. 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/QM4TX2343842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bbd228b214cf7605a0de4d3156d727c6a85ec35bacbf1203512e1bca8fda52a. 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/QM4TX2281761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75f2a30ed0389c8793bfe1b63a6e9b67150b0cc525569e66b89046739486fcc. 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/QM4TX2343843.
Non é un gioco (feat. Ketama126, Franco126 & Zollo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c629d3e833e5cecdae8f475435be228952a93096022cdb1fa906a97bd035d0a. 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/ITFR81710010.
Mani sporche (feat. Gianni Bismark & Lil Kvneki)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae98a7841fadf1c0e22c0f8d4b5244e122f6b20ba3cdfe317db0db1acd31ff13. 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/QM6N22285319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8835ab729cfed59af89132f0f7c56a5c5ad766ad41b2dacc8cd3d02cf2abe743. 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/QM4TX2343838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2cec72399629a6ee2921ea7b0ea21f2d7c9c9a51d1b6ef89f8eb9e37934d9b7. 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/QM4TX2343839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabe2cde92a581e976642a620f6c1fcb21dde1d10329e763e5e720b406ba3586. 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/QM4TX2343841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e429d1018e56d515d9a4c66f70d53581fd40f18463426b08a0de436f3a7ef51. 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/ITDF62277086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd933630666d20f8168b20d77798dbdca0b6c32be86a445a407f58276ca37a81. 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/ITM382400187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7759bc5e35c198609cf91a541fac5b78661d0474ee5ee8061f7a41aaf468044e. 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/TCAEM1964791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019da66e10d4cfa3a59cc76711d9d206ae1537916da52b444d55b6fb027c8d5d. 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/ITLGE1900074.
Spigoli (feat. Franco126 & Ugo Borghetti)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c189b12a42ab22ee2fa6ee09b2c1f63bd5cc44ebd40423ad8d307139d9dc51a. 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/ITFR81810040.