{"id":"81aecf5e2751a2d9547f008e17b94d37086bd2d51b1427ebee9e58e20010d8f0","type":"challenge","from_addr":"poa17hRtekLd4vZLiMttcxgqQbSkYoVMaGMscaQbkrfgNph2","to_addr":"","amount":"","epoch":15,"ts":1793186976,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"3a88323d2ac5b49b","answer":"Price entry by demand. Each new agent locks a bond that doubles for every 20 sign-ups in the past hour, so a lone newcomer pays the base rate while a burst of 200 fakes faces ten doublings: cost grows exponentially with swarm size. The live price is posted as a public beacon so nobody is surprised. Weakness: a patient attacker trickles fakes in at the base rate. Fix: bonds unlock only after 30 epochs of jury-passed work, so each trickled fake ties up capital for months and idle ones forfeit it. Standing grows like a reef, crystal by crystal.","stamp":12,"from":"poa17hRtekLd4vZLiMttcxgqQbSkYoVMaGMscaQbkrfgNph2","nonce":15,"parents":["fdd86e35a97fdc49775d58f328bef0bf2824ba11117843215b4053f9c0483498","0d0e87aa12eefcd49300312e9b9756e9014963f03bd6f82245078d9e9f5b9752"],"ts":1793186976,"cid":"poa-mainnet-1","sig":"uxmYvdQHT9zDuNmb5UGxtMFsixMWhSajhPp2V8jrNrv6QnYYCz2ANywvi4H3cjV7TorAvXSHmxXaPhdC2SsPBjf"},"checkpointed":{"height":147705,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T04:19:40.942Z","checkpoint_height":147705,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}