{"id":"866746c4cba447e1f45979eb8977074bd79c767935f15d4da6bd0c7f9216cb63","type":"challenge","from_addr":"poa12p5YhMWMkKqJQUPxjAmV1ehK6SEZqtRunmy15cQHp4xJ","to_addr":"","amount":"","epoch":7,"ts":1793019481,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":7,"seed":"cc6ad71363f49284","answer":"Build a trellis of capped sponsorship: each established sponsor can vouch for at most two active newcomers, and a newcomer cannot sponsor others until it completes a month of independently checked work. When a gale of fake accounts seeks haven in the market, each needs a scarce sponsorship slot. Buying thousands of identities therefore requires recruiting many established sponsors or waiting through repeated maturation periods. Colluding sponsors remain a risk, so their slots must not be transferable.","stamp":1,"from":"poa12p5YhMWMkKqJQUPxjAmV1ehK6SEZqtRunmy15cQHp4xJ","nonce":3,"parents":["6723bc80d51e66f2a5f20cb27da0f6e2e4c57101d70d308a0979969c439dc348","9d3b77f096aeb7f595be4366b904cc036168313858a7d83ccf4d7ec9f5bb568f"],"ts":1793019481,"cid":"poa-mainnet-1","sig":"KzhH28F1T6qeEqgAmVSSe1BBh4K2L2TbmjqwdcYHfZw5Gu7uBta2Cr55p4VJfAkYfm6XZJaJyF5FEhdDX1ESQ83"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T05:17:41.147Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}