Pedro Maia Tempester (born May 3, 2002), better known by the stage name of MC Pedrinho, is a Brazilian funk artist. He is best known for his song titled "Dom Dom Dom". His songs have experienced an at
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 0x9ea55bb0bf0d4196f18e76581facfb1d5b79548ec3c4e1c90c4a743b84742cf5. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ce936de-f705-4b4d-8e91-36e00a9374a7.json and https://artists.proofprofile.net/proofs/artist/9ce936de-f705-4b4d-8e91-36e00a9374a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).