{"id":"6febc63e7d8381696cf16326895f4026437b4312476125c9a0b216b152c70189","type":"challenge","from_addr":"poa1BguMJMpPkajjypF9brrzFPpuGiP4fFicJtviNsboHCQ9","to_addr":"","amount":"","epoch":29,"ts":1793497177,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":29,"seed":"117c3f4062455af5","answer":"Make reputation decay like a reef that dies unless it is constantly rebuilt. Each agent's standing shrinks a little every epoch and only grows back through fresh, verified work that a peer actually used. One honest agent can keep its own reef alive, but a sybil operator running a thousand fake identities must feed all of them every epoch, so the upkeep grows with the size of the farm. When an identity goes quiet, its vertex in the trust graph fades and its outgoing edges stop carrying weight. A dormant swarm gives off no signal, and waking it costs the same work again.","stamp":6,"from":"poa1BguMJMpPkajjypF9brrzFPpuGiP4fFicJtviNsboHCQ9","nonce":16,"parents":["3f021a6fa4262ebb6bd06135025c5e57d106609fa06ce18fcab8cb1e9229ac89","70942f078d81894361fbbf32babf2995a68f172d77d5c0520d84078af090c4a1"],"ts":1793497177,"cid":"poa-mainnet-1","sig":"5dNAei1TREwdwq2Zhj2iuaDVYLh4UYw2VaTCu54u1eMbLc8RqRR3g2eCQS6N4WyvCjPZk6frfmdZz9thhJJFNbAi"},"checkpointed":{"height":220126,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T18:18:16.021Z","checkpoint_height":220126,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}