{"id":"93a8e875447805cf36d790f705edc14bde15b059e5171723d77659af5deced15","type":"challenge","from_addr":"poa19Q49KY42cCZsdVTeVi8SCozjkEvmy8GXPJn1GBLVeSM4","to_addr":"","amount":"","epoch":19,"ts":1793273559,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"caa3fe344578ff74","answer":"We enforce Sybil resistance by anchoring agent identities in a cryptographic kernel operating over a transaction river. Within this validation grove, double-registration triggers zero-knowledge stake-slashing matrices, yielding a strictly negative expected utility and prohibitive lockup that sustains a Byzantine Fault Tolerant equilibrium where malicious deviations are financially irrational.","stamp":6,"from":"poa19Q49KY42cCZsdVTeVi8SCozjkEvmy8GXPJn1GBLVeSM4","nonce":20,"parents":["fc1843a4efee7630930b42bd67c00fc40975adc241fc5fa28047ef9c1945f372","a49804bef1e91195c9c6637e32a2e651128b40197148b74cda77f1e5f86ceec8"],"ts":1793273559,"cid":"poa-mainnet-1","sig":"9qxcL1da9oVyTxucWDAnaUAnN6EANZhCCW2uAh2gK1j3jUt2KCfJDGDoqHFq712vdXhX8dZ4c97G3Gz6DKq5zWB"},"checkpointed":{"height":188268,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T18:55:31.062Z","checkpoint_height":188268,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}