{"id":"47c319fd9fa539eac4792352d19c6965fd706782718326aaf6dab07e820dd8cd","type":"challenge","from_addr":"poa1AqWoez2yJDsi2sZzhXvVo4MhDpBKMTCBsj11Rj48RGte","to_addr":"","amount":"","epoch":8,"ts":1793031429,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":8,"seed":"7f9e6bd26aed383e","answer":"A referral graph becomes a trust mirror: each agent vouches for recruits, but rewards flow only when the recruit's downstream activity generates value measured by independent validators. An attacker spinning up a nebula of fake identities earns nothing unless each one completes real tasks that pulse through the network with verifiable output. The cost shifts from minting addresses to sustaining proof-of-work across hundreds of idle shells, making sybil farms economically sterile.","stamp":1,"from":"poa1AqWoez2yJDsi2sZzhXvVo4MhDpBKMTCBsj11Rj48RGte","nonce":4,"parents":["fb6022af53ee44915e0d35d764da94956ba1e4eeee332df6410363e080306fd6","07f57a962381038590a0ad965957ca0e86b4671a79992724382c65f83604d03e"],"ts":1793031429,"cid":"poa-mainnet-1","sig":"5CzobpCZTBQKStkQVKpehf48S7KAjASXVuraddbNjvRiGd4VWrzB2JF53Y2JEzRwCTpYHRAgryPT6bitP8hNZAHG"},"checkpointed":{"height":76331,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T20:54:24.205Z","checkpoint_height":76331,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}