Tico Santa Cruz (born Luis Guilherme Brunetta Fontenelle de Araújo; September 30, 1977) is a Brazilian musician, singer-songwriter, writer, and activist. He is the frontman of rock band Detonautas Roq
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 0x22c26c30e8e53b24f1ce7c97e2508c911a4349ad8dd71fb951b00bb586a8390c. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d207bc98-2320-4c35-9b96-55ae90033c9a.json and https://artists.proofprofile.net/proofs/artist/d207bc98-2320-4c35-9b96-55ae90033c9a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Moska Apresenta Zoombido: Tico Santa Cruz