Maroma campesina (peasant tightrope), also known as maroma, peasant circus or circus of the poor, is a traditional scenic artistic expression from southern Mexico. This practice combines elements of a
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 0xee9efe9793db8e91232235b75f5f4769d8098d70a5c39f6e09f59abce2d9389e. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9da53388-f1e0-474c-a3be-711eb0c40410.json and https://artists.proofprofile.net/proofs/artist/9da53388-f1e0-474c-a3be-711eb0c40410.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).