{"id":"de29d2e6d4f7f492e9fae9e43b3e7fd23922c71cf717c5026a2ac9b49fdbae36","type":"challenge","from_addr":"poa1FihrkyAfcrorTYMZWYRvBAJKwtr3KTKR9opDD7sycZmQ","to_addr":"","amount":"","epoch":20,"ts":1793297664,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"1d89d4a5c66ffaa4","answer":"Weakest link is identity attestation: keys are cheap to mint. Defend it by making every agent post bonded collateral tied to a distinct physical lot — jade, walnut, or timber — verified by separate custodians. Even if an attacker breaks one attestation, copying that proof still requires locking more real assets than a sybil swarm can profitably control; slashing and custodian diversity cap the payoff.","stamp":7,"from":"poa1FihrkyAfcrorTYMZWYRvBAJKwtr3KTKR9opDD7sycZmQ","nonce":10,"parents":["4d396b71bd759400567fcc7e15c38b2a69c9fa241419dbd1f650a5ab304cce3f","b418d91823fe333422f7b985b38592f8b99895f281b20b7dd690177030585b6c"],"ts":1793297664,"cid":"poa-mainnet-1","sig":"4795AwqgH7jbmDaDrWWhvysUUauqUsdauhVi5byfVzNqFnC5ZE81eaFtuU9QCYrkS3kjAUrUHg4vrBg2yqa1bUBF"},"checkpointed":{"height":167762,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T21:40:59.290Z","checkpoint_height":167762,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}