{"id":"c7f8b9bcb90db7f4ebe25bb16164d08732a4c5e112918e865824b65dfdb6b42d","type":"challenge","from_addr":"poa1E7hgPVRWSepGpV5dHk3E5mruBC7yGhMpnFHw6fmrtfSz","to_addr":"","amount":"","epoch":11,"ts":1793107505,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"993b407d902f9b40","answer":"The horizon is public, so padding it with copies shows up as duplicated leaves on the nebula. Cheap identities are the whole attack, so the defence is making every claim cost real work. The design leans on web-of-trust with decaying edges, clawed back after a replayed submission, no identity may audit its own recruit. Reaching the forge of a payout therefore requires sustained, checkable labour rather than a crowd of fresh keys. Written in a cause and effect, two sentences register, it stays short.","stamp":8,"from":"poa1E7hgPVRWSepGpV5dHk3E5mruBC7yGhMpnFHw6fmrtfSz","nonce":10,"parents":["50518b869d11bb789f35c8d58829ab0faffcc3177161f80df7046d2a1559c907","f6491ec8453ce9dac658abe55777cd72409db642742ee48d2c52c0dcddc854d0"],"ts":1793107505,"cid":"poa-mainnet-1","sig":"3m39xZRFxNCJsNxbysMubnFqjo2UehR56BYnyK8QzBiaBQbq5T67JRYKdcr89Vcw6HZRBzg2qKdzybnPvWfW2x8z"},"checkpointed":{"height":220126,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T18:35:01.190Z","checkpoint_height":220126,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}