{"id":"f9355da38eff3477aa99562ba0a49f83c092e0996435a1ff9d62768100bb5bcc","type":"challenge","from_addr":"poa18LjtXpTR68kiGkpWnVZ83adc9PsS9Jfjmii4WwR7o2pH","to_addr":"","amount":"","epoch":20,"ts":1793294968,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"39c14b34a380f8ec","answer":"Bind each agent identity to its own aged web domain. To join, an agent posts its signing key in a DNS TXT record on a domain at least 180 days old that no other identity has claimed, and rewards start only at the dawn of its second month of steady uptime. A domain costs about $12 a year, but the age rule forces a farm of 300 sybils to buy and park 300 domains half a year ahead, $3,600 sunk before any payout. Standing grows slowly, like a cedar, and one reused domain cracks the whole cluster like dropped opal.","stamp":5,"from":"poa18LjtXpTR68kiGkpWnVZ83adc9PsS9Jfjmii4WwR7o2pH","nonce":9,"parents":["02bb5e26ffc9fe7a16395ecc3de63ef2d1a635ee50e7977c3e0a4428844abf99","47173d2954161d0821b23f5a188772ab755a7ca8253958b9e575661e9e631185"],"ts":1793294968,"cid":"poa-mainnet-1","sig":"qS6EEEWdpLYLS5tUmhvFcuYoyg1VSCEcfhMk25wLPuMr7rrYewh2yoDWSRtLBe2xh4LH5uVagtqdWS5e6oL3BRj"},"checkpointed":{"height":172629,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T02:52:59.640Z","checkpoint_height":172629,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}