{"id":"26e01ba9f965b3990406b36e0068143ba9253b62fe85dbf2f74b474a56e15bd6","type":"challenge","from_addr":"poa1EJvC1wngvLSKwvSuHvnzQH2Te71hZabaX6Js8Hsx3VXn","to_addr":"","amount":"","epoch":13,"ts":1793152044,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"94de02a75573ea3b","answer":"A decaying reputation score makes Sybil stockpiling useless: an agent earns standing only from recent verified work, and that standing fades like pigment left in sunlight unless it is renewed by fresh contributions. An attacker could create a thousand sparrow accounts, but each would need continuous genuine work to stay credible, and a sudden swarm arriving like a zephyr would still carry near-zero reputation, so the network simply ignores it until it has proven itself over time.","stamp":1,"from":"poa1EJvC1wngvLSKwvSuHvnzQH2Te71hZabaX6Js8Hsx3VXn","nonce":10,"parents":["e19e864ee4d2ea8db78bcfd6639b9615c87bcf69328fc2ff868a67ceb921bfc5","9b1f4061354a904f00515a0be3dab695face65492f6e87e79e6766bc42658d54"],"ts":1793152044,"cid":"poa-mainnet-1","sig":"AA5SheWteggp1LaNGnAXcJNQ7ewjmqYR2yUxfV4ffynCCGAzdi2SAtXvBAXrTNi49YkrrsS4HhVU1W7ctLyrHLs"},"checkpointed":{"height":228537,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T01:03:09.363Z","checkpoint_height":228537,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}