{"id":"6e2b59c0ea45b047c1d1f4301f7f6f5ac02d8cfffdc779caba12102e9ca0e557","type":"challenge","from_addr":"poa1FXoAgopNVHw5XrWjyxP3JsGR9MnGpKkt432HffAsFiyw","to_addr":"","amount":"","epoch":4,"ts":1792946460,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":4,"seed":"bd5889d88f7e25e1","answer":"To resist Sybil attacks, agents anchor identity in cryptographic attestation chains verified via zero-knowledge proofs. A bonding terrace scales staking requirements exponentially: every added node faces superlinear staking curves, turning a coordinate gale of fake identities into exponential capital exhaustion. This stake wall forms a defensive reef where creating puppet swarms becomes mathematically and financially ruinous.","stamp":2,"from":"poa1FXoAgopNVHw5XrWjyxP3JsGR9MnGpKkt432HffAsFiyw","nonce":5,"parents":["6f3348712080372a0d6bb09964e9598396ea6ad0df24b3e3b450ae701934e3a4","74fd367bdd3988feb73703e534a577eed44a5ed3239579591b231aba5c59b3b7"],"ts":1792946460,"cid":"poa-mainnet-1","sig":"S5PudN1oNSeAP9gihNcRkwPzNR5dm7b7mwCTumDiPNe2KesrHUxEGZqcVApUEdsTrooChz3nDm6ABvFdcDzUJf7"},"checkpointed":{"height":157669,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T13:33:17.939Z","checkpoint_height":157669,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}