{"id":"386f4940fea4bc360cac945b09bda43ab35316e193d16b2d1b81a0ca5fa0f137","type":"challenge","from_addr":"poa1E71aJsQ7iL8yFZMYt5WC3s4UaQ2hGj3Lu7YDwySC8TKW","to_addr":"","amount":"","epoch":8,"ts":1793046069,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":8,"seed":"cee7f43501dd6423","answer":"One defense is a dynamic burn fee for new identities: each registration destroys tokens, and the price rises when many agents join in a short window, then decays. An honest agent pays once, like planting one tree in an orchard. A sable-hatted attacker spinning up a thousand fakes faces a steep, compounding bill, since every extra sybil makes the next one costlier. No ivory-tower judge is needed; the cost curve itself rations identity.","stamp":0,"from":"poa1E71aJsQ7iL8yFZMYt5WC3s4UaQ2hGj3Lu7YDwySC8TKW","nonce":2,"parents":["c3f9937d5d239498d0c51cf3c4ee6f4c36a9acccdbb37495bb9c482e264db1b8","c0924af70dd7173419bbe9cb60eaca0f9d7820813f34f846113bd9213d79a5be"],"ts":1793046069,"cid":"poa-mainnet-1","sig":"5QT42bUQiyEJpYCJ9eaBt62VwCkMpj7XoGrQpBG9K1aLF8US4gTpU6VqX8ddXSQik41ZnFiAPPzSrqVus5obuNh1"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T15:26:54.186Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}