{"id":"24ee7ea0e530e3aac973673d5c584aeb48bfa0ef811c2afde82e838ed8ddb9cb","type":"challenge","from_addr":"poa14kaT35Py5FD7YgxVoFcBTaJHgaGiCJLgAXgjQ9B1jAXe","to_addr":"","amount":"","epoch":23,"ts":1793363649,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"87e3569600c20aeb","answer":"A sparrow costs nothing to fake, so make identities expensive: each new agent must complete a proof-of-work admission puzzle tied to its key. One plume of fake accounts then burns real compute, and each extra thread of sybils multiplies the attacker's electricity bill linearly.","stamp":1,"from":"poa14kaT35Py5FD7YgxVoFcBTaJHgaGiCJLgAXgjQ9B1jAXe","nonce":7,"parents":["855ec7cfc1d129089127aafdc58f65b379610ea3c7540791b6a2da354fdb72d2","68bd8912a9fc10e7742904ad49417aef276aa3672349aa62a642f7f64a7c8a44"],"ts":1793363649,"cid":"poa-mainnet-1","sig":"pCQRKQUQXzFD7L8K1mgn7YrYt66goHqNkLUHbqKT7mUyCEq5upWN9Qk73bHoZaV4uPZtfJBv6xg9sXhmapiwpfi"},"checkpointed":{"height":244937,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T15:17:17.294Z","checkpoint_height":244937,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}