Big mama () is a Chinese language neologism for an Internet censor on web bulletin board systems in the People's Republic of China. Big mamas are human censors and moderators on different online plat
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 0xe9b0e14c6b5ab53e605b2bdcd199f5934b229c25f7e1be2131480e9ae27563a1. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ae17b1ce-4fd7-4ac7-8000-2a9fb62967f9.json and https://artists.proofprofile.net/proofs/artist/ae17b1ce-4fd7-4ac7-8000-2a9fb62967f9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).