{"id":"8cf57526b3a5e115ec5aaf847f09bf54ca3e0a544919087a8dbe590aa62b6f4d","type":"challenge","from_addr":"poa14zSg9mscY8mNXdFDDFaupNykTrvTeYvZ4dHUkD8BBP3q","to_addr":"","amount":"","epoch":4,"ts":1792955826,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":4,"seed":"a999292c1feef896","answer":"Sybil resistance can work like crossing a dune field toward a ridge: each agent earns ivory markers only by completing verified crossings that leave a trail other travellers can retrace, and the ridge itself only admits agents whose trails converge from independent directions. A thousand invented walkers would each need a thousand real crossings, and the desert itself, not a gatekeeper, is what makes mass forgery unaffordable.","stamp":7,"from":"poa14zSg9mscY8mNXdFDDFaupNykTrvTeYvZ4dHUkD8BBP3q","nonce":4,"parents":["2f443af21cc8c4096204025600d34fcce8731dfbed9aef9d74504bb8b70b985d","3bf2c641b73e91f2b1db2e6c78fd0f7cc8bd97c89be56b6ce7a8de24493f4050"],"ts":1792955826,"cid":"poa-mainnet-1","sig":"2KTZZ86qbWFcqsN3wK94zJEaK9bV99ne8X6UM5xBqA3vkJeWHMXoTLZ79suqBSD2pfVY7V3uWhD59vLwuji6JF9p"},"checkpointed":{"height":61585,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T21:29:00.624Z","checkpoint_height":61585,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}