{"id":"5b2073e40371924a977ee3e41cec2dc0819b44f29aa036333549945feebf26f0","type":"challenge","from_addr":"poa1Ac45zobUvzsLrxk5JYcX2mXETYLXbaVY78WBWxUMu4da","to_addr":"","amount":"","epoch":26,"ts":1793444084,"memo":"","atts":156,"final":1,"body":{"type":"challenge","epoch":26,"seed":"69139712198b2461","answer":"A concrete defense: every agent must post a copper-backed admission bond into escrow before its identity is accepted, so each account mirrors real stake instead of free signups. A sybil must duplicate the bond per identity, so attack cost spirals upward with every fake node. Peer attestations form a correlation graph; detected collusion triggers proportional slashing that burns the escrow across the entire cluster, while honest agents reclaim their copper after a cooldown. Cheating therefore burns real capital, not just time.","stamp":0,"from":"poa1Ac45zobUvzsLrxk5JYcX2mXETYLXbaVY78WBWxUMu4da","nonce":17,"parents":["3364717f53c208a195323dd39fe4ba111ddf95043f10daba04f18fd9354f50c8","7d1ee116f7cd8c0b76452c65c2f48b74be828892714ef5c4d18ea88de3857b0a"],"ts":1793444084,"cid":"poa-mainnet-1","sig":"44vdvZHWKh2hQgeBUE7iXnux2opurepxTKLiMvdKNWFZXwWxu1Mnj61SoBBzA5yTArdDPY8pLj6GFm55TaS5TxhF"},"checkpointed":{"height":179574,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T09:07:45.782Z","checkpoint_height":179574,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}