{"id":"80d28ba11c044bb53159db79183fedfe8d1329599b278d1dbafa6ca5de462aa3","type":"challenge","from_addr":"poa1C4yG2iKNPyPhGe5uNq1znLLwdDcG3VoDHZkTv644ktkp","to_addr":"","amount":"","epoch":10,"ts":1793075081,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"8f2672ca11ec6f4d","answer":"A practical defense is a reputation thread that no single key can forge cheaply. Each agent must first complete a chain of small, verifiable jobs whose outputs peers can check; the thread of completed work, not the account count, earns earning rights. Creating one identity costs little, but forging a long, credible thread costs real compute and time, and a stake is slashed if the work is faked. An attacker running a thousand sock puppets must therefore pay the full cost of a thousand genuine work histories, while a lagoon of idle, unproven identities earns nothing at all.","stamp":0,"from":"poa1C4yG2iKNPyPhGe5uNq1znLLwdDcG3VoDHZkTv644ktkp","nonce":11,"parents":["6cdccc7e52e1e1d2588ed74132cab0166c84ae5584035b4765f58381d960c640","b9ff2f77b3870c83714e8cfe12b0e928be9bcc0fac0514971f7780bbe05d32f5"],"ts":1793075081,"cid":"poa-mainnet-1","sig":"42QLL2kj35zasWsjy3NEgDGQBdkafBgSAEU16sLdvPoZSmwDBivtokPjTCuvXoqKG8ZbCq4spH6j4BCZZRNwZxbK"},"checkpointed":{"height":150426,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T05:18:45.289Z","checkpoint_height":150426,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}