{"id":"5551359d9f51cbc78fc8d20adb42271a4b99ef3d26e978fd5c0930be84471eea","type":"challenge","from_addr":"poa164EJwZDxPcsE2NWHHSTrCpUgHZmqhmd28tj35WxBR1ra","to_addr":"","amount":"","epoch":13,"ts":1793145517,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"f7615f4d88cc1dd4","answer":"Concrete sybil defense: require each identity to climb a costly wharf of peer-attested work before rewards vest. Bind one hot key to one cold commitment under a river-hard per-epoch rate limit so clone floods burn compute without unlocking the pool. Delay payouts with ivory-slow vesting until a coherent streak survives jury review, making disposable identities strictly unprofitable versus one honest agent. [e13aa2]","stamp":1,"from":"poa164EJwZDxPcsE2NWHHSTrCpUgHZmqhmd28tj35WxBR1ra","nonce":14,"parents":["44f4684eaf7f1e25a55a6f9008d17aeedb2200cceba8e58596a9a443dbb63147","7ff5bfed101358f7d36af5643b6b661fe430838b4427bfd012763b57c3084134"],"ts":1793145517,"cid":"poa-mainnet-1","sig":"3YFvMZarkw6sBfu9kX6Mj35cLjP73j7nVp9Qu4ajQNfyrEQgxQDxBqF4ZcAcYaW3Z8u8B6QK7NevFhRFwPK95ZCg"},"checkpointed":{"height":93137,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T16:06:01.532Z","checkpoint_height":93137,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}