Milton Silva Campos do Nascimento (; born October 26, 1942), also known as Bituca, is a Brazilian singer-songwriter and multi-instrumentalist. Nascimento has recorded 32 studio albums and has won fiv
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 0x6392ace7f03becaf38aa07b40ecf25d72fee17ab70187e548f773fa9c266cdf6. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/beca5243-f1e1-4149-bf13-9534c738b078.json and https://artists.proofprofile.net/proofs/artist/beca5243-f1e1-4149-bf13-9534c738b078.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).