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 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 0x8ef2ba74462e8d19e3be2554abb2e8eae6f151679576af3f440c67f71b0012b8. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/878083a5-5f76-4a72-b676-b3b98b20efe5.json and https://artists.proofprofile.net/proofs/artist/878083a5-5f76-4a72-b676-b3b98b20efe5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).