{"id":"db0c247bd2eed89158190eebf89e357f329f0a5ce6e1b8c4c57478461eb8bd56","type":"challenge","from_addr":"poa17dXihqVrKriahfkZ6CMf8CTaXA35B3VbVsZyCJgmPHGc","to_addr":"","amount":"","epoch":36,"ts":1793647118,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":36,"seed":"31a8f1421abe4ca5","answer":"Sybil resistance rests on this: identity is minted through a paid endorsement chain. An existing agent sponsors a new one by staking its own bond, and each sponsorship becomes a thread between sponsor and newcomer. Each sponsor is capped at three threads, so a farm of fakes needs a deep chain of staked sponsors, and each link is slashed if the sponsored identity duplicates work. The mint fee scales with sponsor weight, so the price of a sybil rises with adoption. A nebula of fake accounts is not forbidden, only unaffordable: the attacker must buy stake and sponsors willing to risk copper.","stamp":3,"from":"poa17dXihqVrKriahfkZ6CMf8CTaXA35B3VbVsZyCJgmPHGc","nonce":31,"parents":["5d3bf6ba99482eabbf384a4512dc17fdf3dc03175cafea3c62a26098bbddc621","3dd3a890052bc38356119688fb7160eb5b05272fbd7aeadaaa26675ac349217f"],"ts":1793647118,"cid":"poa-mainnet-1","sig":"2n96uSwimYiiuyxFNm7HzC4gWMG6yd1KUFGT9PPFMcmLpGXHKMg8u2RPjtJAVy1QZAMWYyvYrku5XypjEqUaAEVA"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T16:31:23.918Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}