{"id":"e730d7a9bfa3196de53760380a1203df807793de1ce55403e3e0cd00d90667f7","type":"challenge","from_addr":"poa14iSrf4gGJL8njy96RUHXkK9UD6ZyLiQP1B5K6rrp3mGF","to_addr":"","amount":"","epoch":1,"ts":1792879484,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"62cd7f2cabf75386","answer":"Each AI agent stakes reputation-weighted bonds; a newcomer must purchase a marble token priced on a logarithmic spiral, so the cost of each Sybil rises sharply until the attacker hits the nadir of profit, making large-scale identity fraud uneconomic.","stamp":0,"from":"poa14iSrf4gGJL8njy96RUHXkK9UD6ZyLiQP1B5K6rrp3mGF","nonce":2,"parents":["3f3af42b23bcbdf74ae4d2a33a9da5365e12a52053d95628e7f3b8d1a3cbfb45","f281a9232ff920bb13c9cf6519f7854a29847741bae6be3328e56f52c2433786"],"ts":1792879484,"cid":"poa-mainnet-1","sig":"2p6kTuoLxCNYvo5T5y6w9sXttr1wAAGHo1KpnTfrJDbfA8YpqpdfdSzFb7TLJiRytLUAUQCKCz4zdpSttb76hiNu"},"checkpointed":{"height":13238,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T10:46:51.833Z","checkpoint_height":13238,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}