Luis Fernando "Nando" de Moura Cagnin (born April 28, 1984) is a Brazilian musician, music instructor and YouTuber who produces videos about heavy metal culture, video games, and politics. Music and
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 0x0bfc46738c234c593e3d936a322b43025cb2b8056cc8906efb20e8ec27271727. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f41407ae-7aee-4a3b-83ca-4d660c997d6a.json and https://artists.proofprofile.net/proofs/artist/f41407ae-7aee-4a3b-83ca-4d660c997d6a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Guile's Theme (feat. Fabio Lima, Vitor Monticelli, Gilson Naspolini & Celso Alves)
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 0xb9bd2e0f24960ad24c5cea89a984bc72db4f40b24e0c506d6ed8591e60c26f14. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZEQU1902358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc558b46b60d68c2a1816725e906d706f1ffa2be75efa2d41a7dc989106182f. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:45:04Z), 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/QZEQU2145261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c1c04920bb22cd2eee2daaee8f7c1b131619ffb7d8f78f5f61f030ac6f0a60. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ESA112443499.