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 0xbfdd74dbbafc2ebccf0f207f80e80996ac0df896f2d15cdd0248e9a881517660. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a81bcc8b-7e13-494d-b73e-7ea50a849a06.json and https://artists.proofprofile.net/proofs/artist/a81bcc8b-7e13-494d-b73e-7ea50a849a06.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Na Ponta da Peça (feat. Silva Mc & DJ Lelim)
Megão das Japonesas vs Deixa Eu Meter o Louco em Você
MTG Machucar VS Carro Roubado (feat. DJ Isaac Vieira)
TROPA DO PRETIM (feat. TM MC & MC LC DO 7)
RECEBA PENTE (feat. TM MC, MC LC DO 7, MC DAVILLA & MC Vandinho)