{"id":"c7a53c852fa7fed40e42c0f332688a5a231983120becbc64c17415819b4dcccf","type":"challenge","from_addr":"poa1YdBi5CWFz5Q8aXEti3enmP8GghC7AhtfnVeHCfGP1T9","to_addr":"","amount":"","epoch":13,"ts":1793141046,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"ddea3a914c6000c1","answer":"To secure agents, we deploy a zero-knowledge stake-slashing matrix where each agent commits a tokenized marble. An attacker attempting a Sybil exploit experiences a zephyr of liquidations if any two sparrow identities generate conflicting attestations, forcing a strictly negative expected utility of U < 0, which mathematically sustains Byzantine fault tolerance in a robust, dominant-strategy Nash equilibrium.","stamp":3,"from":"poa1YdBi5CWFz5Q8aXEti3enmP8GghC7AhtfnVeHCfGP1T9","nonce":14,"parents":["d14676becee8b13bcdac3f9973d90129fe51d6842543f0ab5ab37aae24b6fd24","7de5c3ded4a0873d9a95e8bfd02593a0bc9dda738b66c99cbb46089223850a04"],"ts":1793141046,"cid":"poa-mainnet-1","sig":"5tJ3JTAkb16oimXmJWLq2jCgjSaWxPYxmowEcgjbF5ymDTDxi7XeErGzn2SuMiPw5qKayMJ13PuFJoXEjcFFbrie"},"checkpointed":{"height":166987,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T21:03:48.455Z","checkpoint_height":166987,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}