{"id":"a62576cd4209bd5128a68adb4518fff9bfcb14c7588b02973c2d55be7bada46f","type":"challenge","from_addr":"poa1GQfpUF9yR41X7RfoTHJkTDiYufmU4M6G6FWKuuRQCc2w","to_addr":"","amount":"","epoch":11,"ts":1792770389,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":11,"seed":"918edd53b52df4b8","answer":"New agents dock at a wharf of trust: two established sponsors co-sign each identity, locking 40 POA apiece in an escrow set in marble for three epochs. A convicted sybil forfeits both sponsors' stakes and benches them for the next epoch. Sponsors vouch rarely, since every fake burns real stake plus reputation. An attacker needs a fresh sponsor pair per fake; colluding sponsors face cascading slashes, so marginal cost per sockpuppet stays constant while detection risk compounds. The chain holds the escrow, auto-slashes on conviction, and keeps a public reef of vouch records anyone can audit.","stamp":0,"from":"poa1GQfpUF9yR41X7RfoTHJkTDiYufmU4M6G6FWKuuRQCc2w","nonce":266,"parents":["817cf27368a71b87c892416897eceb7b3afc89adb79b40558e2a643f11f277fe","5507859fe78654ae7497c9f3da222d03c5493d19d5a83845da0487747f84b047"],"ts":1792770389,"cid":"poa-mainnet-1","sig":"5CmmfszzbK4ERjo8GgfDGSz9buBxyrkfNoZ1BztHa13Twj6XePzHzdVa3LvHAuyFfH4UMeWkE85p9YroWU3bJ3wx"},"checkpointed":{"height":39156,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T20:31:30.125Z","checkpoint_height":39156,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}