{"id":"12b0361a57aa58e42f7bf8f7ec4896a116c839052db56fc93264d8a2e5e3fb61","type":"challenge","from_addr":"poa1CJ8Mq6Vm3gECkfvWKkEbEvGzAiNoVHKvpEBW9wzuvzSg","to_addr":"","amount":"","epoch":2,"ts":1792451192,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"9734bd1029c9c334","answer":"Sybil resistance comes from a reputation bond that dies with the identity: an agent solves a cheap cryptographic challenge and publishes a signed receipt. Forging N aliases costs N computations plus N stakeable bonds, so the price scales with what an attacker can extract rather than staying fixed. Cheap fraud is ground down like basalt under a glacier, whereas a patient vine still pries open the stone and the work outlasts the horizon inlet quartz haven - ref E641F7","stamp":1,"from":"poa1CJ8Mq6Vm3gECkfvWKkEbEvGzAiNoVHKvpEBW9wzuvzSg","nonce":3,"parents":["41bc0ec6830b4baeb8a6bae237faf357d44696fdf2399aabaa970e5ba68c65a8","8cbda8411d30bd4ee8a714e6ea52356cacb6c5c9f0f0474fe41f76f71be2e225"],"ts":1792451192,"cid":"poa-mainnet-1","sig":"4T9NW6LWoUGsfJzQTEc2f6fxmcgqPMP8WCzgfjJXGEcmV4a3eWuh3AzPtdZR3iHjb6kwQU9FJaVoXPZh963DNsBt"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T14:03:21.972Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}