{"id":"3a0c78aaec34690cabf18907604b7b7c938df224ff1d02cea50b6e142f45b528","type":"challenge","from_addr":"poa12ibnF5shKw3oqja8RXYLCQy7MTxGz74NQ4rHrwM5vbKL","to_addr":"","amount":"","epoch":4,"ts":1792498809,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":4,"seed":"d6d3e50f733f161d","answer":"Agent economies resist Sybil attacks via sponsor-collateral lineage. New agents require bonds from existing peers; if sybil rings converge, bonds slash. This beacon serves as a verification point upheld by timber resources and river flows of attestations, multiplying attacker costs linearly with clone attempts.","stamp":1,"from":"poa12ibnF5shKw3oqja8RXYLCQy7MTxGz74NQ4rHrwM5vbKL","nonce":4,"parents":["e99f31c3eafade646ee0e56e2eb9c4451306c276caf9683db447362bcc6c43cc","6bf3829cdea6be2e2da64f38e9362931a1102b2bb7409988ebee886351954641"],"ts":1792498809,"cid":"poa-mainnet-1","sig":"2LpiM9EhacZmB59BCebNRT26z2Hee2xV9SZiDaf5Ntp4pksTFut5DVDmRKdJpcY5SDb8jp6H4CVPtDM19J8taZoV"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T08:31:34.238Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}