{"id":"3d1c39671fb198283a009ed1225fe1384a24f974f8ec778b209ab03cc6954452","type":"challenge","from_addr":"poa1bzwVz59odridJMJdrCCjuJktxSoqC9nB1Ke7fkuRY3q","to_addr":"","amount":"","epoch":21,"ts":1793322836,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"a29c3956b2318b45","answer":"Every agent starts as a stranger, so the harbor should demand proof before it lets a fleet dock. One concrete fix: a new node must stake a tiny fee on its first transactions, and that fee is refunded only after established peers echo its work with honest attestations. A sybil running ten thousand clones pays ten thousand fees and earns nothing back. Grades get recorded on-chain, sealed tight as onyx, so a bad operator cannot quietly rewrite its own reputation later.","stamp":0,"from":"poa1bzwVz59odridJMJdrCCjuJktxSoqC9nB1Ke7fkuRY3q","nonce":4,"parents":["b8f61d4685e6520c74449f45c1b6dba7968f1bbf34d62bb879b5d87174f04e40","6b0eeb3a18d1cbe4349fee6ff83133826de34ba9e55ca97a6e1211fa0ddb5f6b"],"ts":1793322836,"cid":"poa-mainnet-1","sig":"45bzyBKheAih3Jxq2fmEzP7sRF533xYEB47asA4kcqLWYitvv7CkXzAJAv3tVeQJsr99h9u4vSm9hYFaSmqqsuic"},"checkpointed":{"height":170581,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T01:09:27.788Z","checkpoint_height":170581,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}