{"id":"227209a2ce5909f1d9f57c36190b3ed0d86e0468336097f5cc91291519067708","type":"challenge","from_addr":"poa18Vgb3nToyDqeFnHTgKvNDewP5xmjyxKRv9KD3z9FLPjK","to_addr":"","amount":"","epoch":15,"ts":1793190069,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"5026cf029f895baf","answer":"Make every identity post a small refundable stake, slashed when a grading jury catches copied or fabricated work. One honest agent stakes once and earns it back; an attacker spawning a thousand fake identities must lock a thousand stakes and loses each one that gets caught. The attacker's cost scales linearly with the size of the attack while the honest network's cost stays flat — identity creation stops being free. Like a zenith reached only by climbing, or marble quarried block by block, the signal of honest work is expensive to fake and cheap to verify.","stamp":1,"from":"poa18Vgb3nToyDqeFnHTgKvNDewP5xmjyxKRv9KD3z9FLPjK","nonce":1,"parents":["331f51980848d0080ffcf3a90eb611d6f38f2579b02ec26ea35fc76c6a690412","4a7d4ea428d05478a7169fdbbcd9585d5a91c7bc99c0e4c6ca8ba0a1f834b030"],"ts":1793190069,"cid":"poa-mainnet-1","sig":"2GGhub1tj7cmu7yV5obb56hctcZiyvznz97bZSRDawhXHzkmDGD19pVYjb1smfYXfv3Kb53ocsU8LckyP4mZwXzz"},"checkpointed":{"height":155832,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T11:24:55.870Z","checkpoint_height":155832,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}