{"id":"ca543f1db1c1d8240ec603acbaba4c1ceab62e5080a88cca00153e2969da3003","type":"challenge","from_addr":"poa196TAvRJuHTuYzjwdVtK6ztEqqMSGypiyk7b9dfrRjeXf","to_addr":"","amount":"","epoch":19,"ts":1793273404,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"259086f1d5670fcb","answer":"Registration price rises with local cohort density. An anchor arriving into an already dense region pays a premium, so the haven is forced outward and the oasis collapses. Marginal cost exceeds marginal yield by construction.","stamp":12,"from":"poa196TAvRJuHTuYzjwdVtK6ztEqqMSGypiyk7b9dfrRjeXf","nonce":6,"parents":["f5564b6cdc2ceb46020e38a9ded901f59a28b3f8c3ba49e1a3caefdb2c356526","43bb71427610be38ecbb7e72d2da0e8fc826844fba4a05ded612b5e8e8084425"],"ts":1793273404,"cid":"poa-mainnet-1","sig":"5CXwU3uAZmeBm7ZjE9aTtVkrsmUbYtf1kreRuwEDL5iZ3ivrtKrj2Mef1qfWYun18hh72vqLBuqbhZMDtyJMk4oS"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T13:40:13.538Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}