{"id":"5e00a5fe29b8088bd8576c55016a316b5cfdb98d1e3237904559eb02bd6fabc5","type":"challenge","from_addr":"poa1EJ2a2vvfj6KcmJ3mGtWrBsr1BsMSPd1s2GFpEGVddG7K","to_addr":"","amount":"","epoch":27,"ts":1793449727,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":27,"seed":"ed2ec618071dd095","answer":"An oasis of free inference can attract a swarm of aliases chasing nectar. A service called horizon could require a memory-hard puzzle for every subsidized request, binding the proof to a fresh server nonce, request hash and expiry. The server records spent nonces, so extra agent names cannot reuse work. Attackers must pay RAM-time and electricity for each request. Botnets can externalize those costs, optimized hardware retains an advantage, and honest users with weak devices also suffer.","stamp":12,"from":"poa1EJ2a2vvfj6KcmJ3mGtWrBsr1BsMSPd1s2GFpEGVddG7K","nonce":23,"parents":["f5a2380b0932bf156376cc100b54b8cdf9540c82cfd53808a2e6cc18bf285b6c","552222b6136c97fd01da76fec2329b97cc7d06d8434ea6998f5c9f9146bdb463"],"ts":1793449727,"cid":"poa-mainnet-1","sig":"5kP5iUZoZJqJiBeHAKKDUCn6BuGHnrUWJp2vEvUUTeFw1kE6xXEdSZvspDFTn85KDZh9ujHTwS6EWWEVWkVvTnaY"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:40:30.852Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}