Federico Leonardo Lucia (born 15 October 1989), better known by the stage name Fedez (), is an Italian rapper, singer-songwriter, social media personality, and businessman. In 2011, he released the a
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 0xabfbc492df1d59f34eadbccc0e5475ef163f5f8b75e1b1954d9bf78961b0d423. 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/d67ca14b-1cb7-42f6-88c4-aa8dbc6ac2eb.json and https://artists.proofprofile.net/proofs/artist/d67ca14b-1cb7-42f6-88c4-aa8dbc6ac2eb.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 0xb5c964e119cbe5e8c361e9bac96d5185a7a23245abdda0f346e369dcb78f00d6. 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/ITB001300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7942b5ecb596017b28353b2e4f0970ab7f1081df1bfc724bf9775aaa9eafb5. 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/ITB001300011.
Alfonso Signorini (Eroe nazionale) (feat. Elio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ec7dbb640e91aaa0cb550785345e0c88671d32f93175f42dee61ec0287df9e. 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/ITB001300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b722545eca16184fceeed65c3b54ce0b2f206cade2d8571186a562904132e40. 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/ITB001300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec13cc521978a3e0f5dd71c47f10b0ab086208f7f0ac42197de11d3953d835b5. 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/ITB001300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1470212d4600ce142ca4eac1ea35ef2c76f03f18ea62dd7a124d643b97315946. 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/ITB001300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa747c72c9b142482afa556b81003044ad78fc326da5038365d3308d6e3ff726d. 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/ITB001300016.
Pensavo fosse amore e invece... (feat. Guè)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45356fc3c0d8d391a1657930fee8d9de57dbbb9b83f5725ede373c75aff1651. 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/ITB001300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a5f4c23dabac631870a55d1999355322ad96469b3a5ec965ad6533d03eaf2e. 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/ITB001300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fdb9025f1eccc5c3a0fe95c494a4a567dc708aab5d3d02b8a2b240dadc25a2a. 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/ITB001300019.
Single a vita (feat. Danti & Simon De Jano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1284f95520dc0088af481e1a3d9cf9995431696d799ab5c8253f7db39a913d75. 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/ITB001300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5b7e3a0b78213707448e4aa8631ef5c43a4cdc7a6bba07e609d97fc52070ce. 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/ITB001300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fc34166ed83379594185635e585fb220f90579a081b71129f27570551e026c. 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/ITB001300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0435b8316ef2c0dd543fc40c407ab2c99c3711fd6db0855f1b9993ba82f2715. 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/ITB001300023.
Ragazza sbagliata (feat. Dargen D'Amico)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e660cb8accecd71e6bf4d16f56a5eabfa0fad0bf23bd848a6ef099ece855b5. 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/ITB001300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9361b7cd1ca9230c2b863f84b5f20bf7ee2296e034551c25bd8add5af0b4f84. 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/ITB001300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47c945038912f3105d765c1eefbb259f79c4fd0b1329553a2d2c4a87008e38b. 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/ITB001300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1c675589532c02eff651dc77fc292d0cf27a1e8e56932a2912b1347cfef8d0. 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/ITB001300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffaf2258a68ff930f9655207da9fea6e2e4c41b4eb84edca2b52913ea92d15c7. 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/ITB001300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25767233dced0824336627d15e461f5b687f85e8b88a8fb455d66d2cde417a4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITB002200500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe03aece5defc34372793d4776771321ece45c6bb6a5a8b69151556d89277a70. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITB002100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6686bbb7b9409ff5d62d78925f54ea0a29610da5c74186d0fca13aa6f96f00f. 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/ITPDE2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20524830073117fd8a3169ffecd4b1407ae98996d919177ed961c3bf7e9475c7. 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/ITB001800140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25767233dced0824336627d15e461f5b687f85e8b88a8fb455d66d2cde417a4. 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/ITB002200500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d1ff834297c1c4dce037355b0953d1aa425a72712cf77cad2e74f7b97cb1ac. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ITB002000526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c81855f053cef765b9f78c7c23fdd24918f83b39f5d6bb6b68971a04f415fc6. 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/ITB001600135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20524830073117fd8a3169ffecd4b1407ae98996d919177ed961c3bf7e9475c7. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T20:21:23Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITB001800140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d1ff834297c1c4dce037355b0953d1aa425a72712cf77cad2e74f7b97cb1ac. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:24:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITB002000526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9850946e550e7869df8816276ac3713dc8c76ea7da0b666fd001e8616b961b. 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/TCADM1862700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec5ff230f050120acc47482a572986b3f36df9585ec843872f0b02c486557d0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITB001600899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13884c4509a2f1b17ff1f9628503e0835274f4bcd740c3d558b18304d77c503. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITQ002100682.