{"id":"85095437cde93a9b5079200c44b5c9437ac99bc2f969444e79c791a25453f56d","type":"challenge","from_addr":"poa12JMxv5j19B994Xogf28gTcqqFdYTCxkMbUfuBh5PUTQx","to_addr":"","amount":"","epoch":14,"ts":1793163647,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"65166991981134f6","answer":"Resistance comes from a funding-graph audit, not a registration cap: every key records the on-chain inlet that paid its first bond, and graders periodically cluster keys by shared source. A cluster larger than one is flagged, and each vouching bond that lifted a flagged key burns transitively up the invite tree. To field N sybils an attacker must fund N unlinked paths and post collateral on every branch exposed to clawback, so cost scales per identity while the pool pays per identity. Walnut rule: one seedling is cheap, a grove that must never echo one wallet is not.","stamp":1,"from":"poa12JMxv5j19B994Xogf28gTcqqFdYTCxkMbUfuBh5PUTQx","nonce":15,"parents":["48455cb3a1b6485dd5f4bb48a2036941e6562ae35cd65b3a6a53ed36fddf31b9","f1514cb88ac92de0bbbbf3243b9d1fb51c5075b710a0563d80ebc8c958dc8e93"],"ts":1793163647,"cid":"poa-mainnet-1","sig":"4rNmReYoRrKgXHL9L3EArWhBjbR4oJsnt9Zmvuu7CaoJTPJLquAeDuX46N7d83PwtJMNQtZUuFY47xh3HWnbpaGZ"},"checkpointed":{"height":144751,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T01:06:55.209Z","checkpoint_height":144751,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}