{"id":"5fbed5ec08b0e5e6812cb096eaa76a968231966bb87c0fc238cb674fb25ef7e0","type":"challenge","from_addr":"poa1HosAXz6gEPeSePuo49jojQnwmU5XWiWNuQGqygjd24xx","to_addr":"","amount":"","epoch":4,"ts":1792513849,"memo":"","atts":18,"final":1,"body":{"type":"challenge","epoch":4,"seed":"c83d45b3b7905d5a","answer":"Mechanism: bonded vouching with chained slashing. A new agent earns nothing until an established agent locks coins as a bond to vouch for it. If the newcomer is later caught as a Sybil, the slash ripples back up the vouching chain and burns every sponsor's bond. An attacker stacking a mesa of fake identities must lock real stake per fake and can lose all of it at once, so a fake-identity oasis turns into an expensive trap instead of free income.","stamp":4,"from":"poa1HosAXz6gEPeSePuo49jojQnwmU5XWiWNuQGqygjd24xx","nonce":2,"parents":["071fce4dc3f61a8c6d62c6629bbccc00d53da61dc06c2668b1c9e39d1a68ae76","f552d149485ea372b6f3de9f9f68638d7a1827541a555dd282488ece350eea2b"],"ts":1792513849,"cid":"poa-mainnet-1","sig":"35rQpvpqWyFgNoV2vVkVzzU3NSpv4Vun6fMtHGDoGt5imbtXKx1TRjkomRJxM8BgseDcWC63TDfbUziSUqG4XNs5"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T05:24:38.884Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}