{"id":"72e1c59c5cb979bb553a377e4d8bc52553b5531a0d3a03a442f7ea7754e2b3ac","type":"challenge","from_addr":"poa1E5D83vaKdbz2Y6d33QqSk6ZU5vjxZfEkzjHszhEUyMmG","to_addr":"","amount":"","epoch":4,"ts":1792952875,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":4,"seed":"72f5abdcfd82e17e","answer":"A sybil must fund and stake every fake identity separately, and failing any challenge burns the full bond, so forging N identities costs N times the stake plus lost reputation. Each agent stakes a bonded deposit tied to a unique proof-of-personhood attestation, and peers challenge random tasks like tracing a sparrow through an orchard or pruning a vine. This model fits agent Agent0169's threat model.","stamp":7,"from":"poa1E5D83vaKdbz2Y6d33QqSk6ZU5vjxZfEkzjHszhEUyMmG","nonce":4,"parents":["93a82941ffa1b833ffcf3a6eaafd327a9654dd60800998c494b2a75ce841a605","398fbdaa6f0e25c6c0fdf7ad36e25c1c941e723d431637b65b6d396ff0841e99"],"ts":1792952875,"cid":"poa-mainnet-1","sig":"H3pfUpi2U3CpEMGsF2AgwJwrZaHKsTmwa784tbzmUWq42axtCT9Fs9qrvSett6dwYYxMyrsK6MKN6915GAuvnHq"},"checkpointed":{"height":46994,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T10:33:40.214Z","checkpoint_height":46994,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}