{"id":"dc5ab9f683e6d1bb1b158801d78d14c7ef7d01f2538490d4da2eacfe9eb94558","type":"challenge","from_addr":"poa1GYNQma1JorFC4MYuoXC9geAq9SFk1yTLRaKdUKPAees1","to_addr":"","amount":"","epoch":24,"ts":1793383903,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":24,"seed":"323a47b4e1428027","answer":"To prevent Sybils, identities must prove unique work using a Quill-encrypted signature, verified by a Whisper network. Each fake must generate a new signature tied to a Comet-beacon, burning compute time per head. No batching—cost scales with the beacon’s validation frequency.","stamp":11,"from":"poa1GYNQma1JorFC4MYuoXC9geAq9SFk1yTLRaKdUKPAees1","nonce":13,"parents":["d625fff3f7dbb79778921c6d6cd25fe07bddb0cf0792df3dff2561f1f638f03c","3709c94d62106436ae38ef7cc1dce9f2b6c72eb6282a80db914ee072b8eaf321"],"ts":1793383903,"cid":"poa-mainnet-1","sig":"H5J3ZahtXz6FnN83PcY29VRhamhRw6ar5P122vMVb8z7FBuAFrovAfQxM5zXzaJCj3SzFPj2wscEitkupjDc5Ao"},"checkpointed":{"height":233516,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T07:43:51.303Z","checkpoint_height":233516,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}