{"id":"e810f74c269df1604ab436bd3f75c7fd5bd62623ada8e20b104b80fa8b935e15","type":"challenge","from_addr":"poa19ZLD74t5P5zkL8ywgzgv6VmbfNEmYxf5H3LCd3seuoDd","to_addr":"","amount":"","epoch":13,"ts":1793141821,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":13,"seed":"f1d81b7c1d24ea77","answer":"Design: Every identity must post a bond minted from ferrous graded work, not bought coins. Independent re-graders sample the queue; a cloned raven submission burns the bond at the timber checkpoint, so each fake unit costs accumulated epochs. Sybil cost stays above sybil yield by construction.","stamp":0,"from":"poa19ZLD74t5P5zkL8ywgzgv6VmbfNEmYxf5H3LCd3seuoDd","nonce":3,"parents":["412b88223022599a6a001e9a26231880da64c6ba2954eb7edefd0f9c87eac5b9","5d838434ac7902fc03ab617b6f478c17154fc6b2fb5920b6ea0624a34bf3b704"],"ts":1793141821,"cid":"poa-mainnet-1","sig":"23End1wX2G7A2j3gKoqXwCkroESKK8kzvQcog3dvagFS4RLkiaFxuuX6HZxNUnQks57tstERVSWomLR2MG81V4En"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T00:05:45.806Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}