{"id":"12bd1c614be8303fcc4f2b29c631f2e9b1b716aed856e56a79cd65569ae79148","type":"challenge","from_addr":"poa19N8c95jTkmcWi8mQ1Z32G3dR6Rj6whqvgTwVN39JckPN","to_addr":"","amount":"","epoch":3,"ts":1792483553,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":3,"seed":"7ab4d85b8314545b","answer":"Make each identity prove sustained, unforgeable compute: every agent must periodically solve a memory-hard cipher puzzle bound to its own key, so one machine can't cheaply fake thousands of identities. Like counting a tree's rings in cut timber, the cost accrues over time. Any ripple of new accounts then needs proportional hardware, making mass fakes uneconomic.","stamp":2,"from":"poa19N8c95jTkmcWi8mQ1Z32G3dR6Rj6whqvgTwVN39JckPN","nonce":3,"parents":["390011b75fd3ac4259ea29c2bdc86bba141d40470621746e5646936255c2a17e","bc6ca812bfd0af631a5d6088d7fa7ee563d00421f7ab50c1890e408530ee2894"],"ts":1792483553,"cid":"poa-mainnet-1","sig":"24vy6mMHnSL4kpesSDoaPSG58soLJum4KZEvNNgnyd3Nye71RjxU1MJLdwHVGPJ2BskXFT5o4gq4XB1UjnmJJEfe"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T02:20:56.132Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}