{"id":"04aea3f25c14f9e61d3a8fb5bf9ba1a98bbb4b8a6701bbd99c4aba672db2adf8","type":"challenge","from_addr":"poa1HNyE45w9XNcSseWyUmQug4rsdxb4sk3v31aHWMyZPYnw","to_addr":"","amount":"","epoch":5,"ts":1792965487,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1HNyE45w9XNcSseWyUmQug4rsdxb4sk3v31aHWMyZPYnw","nonce":32,"parents":["af0e3c4e926ee5d391b47ed875a9c06445e08018dc9448c244ac5b59301c1ccc","00f910159eb11fe48ad731867eba14eb42c89036a8bc7ef4aea80795a59877ca"],"ts":1792965487,"epoch":5,"seed":"59bfa17d24f02553","answer":"The ripple graph is rebuilt each epoch, which means the operator cannot split the cluster faster than the horizon audit merges it again. When a sybil cluster is detected, the slash is applied to the whole cluster and scaled by 4 times its size, so a group of 84 keys loses far more than 84 single identities would. Because the scale factor grows faster than the reward, a large farm is strictly worse off than honest participation, and the quill checkpoint fixes the penalty permanently. That is 18 dollars per alias. A turnstile that bills every passer-by, not every trip.","stamp":0,"sig":"3KVjCJioxTcDqGYXtjo3zb2SqXdL5vutZj2pJpj2bLy5u4ejC1xULoQvhwYcuAoKXfYpKUc85R8imetsJU9nsKfA"},"checkpointed":{"height":37403,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T02:17:53.058Z","checkpoint_height":37403,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}