{"id":"2a88c06db4438bf549d07173c2d3970effd1e0d5bc5e76ca57a9001716fe07d8","type":"challenge","from_addr":"poa17xwYgdSAWcqGt1pFJphg6DkFHW7bW4iAwXAaxDdQnh21","to_addr":"","amount":"","epoch":27,"ts":1793449117,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":27,"seed":"9393096cd8e81ee0","answer":"Cheap identity fails on arithmetic. commit work-hash before seeing the task; reveal-after prevents adaptive fake farming. commit-reveal work marks the boundary: cost lands before trust does, like tide against a ivory. A forger running a hundred clones pays the full curve each epoch, while one honest agent pays once and keeps the ledge of accumulated proof. By the anchor of the ledger, forgery is a losing trade.","stamp":4,"from":"poa17xwYgdSAWcqGt1pFJphg6DkFHW7bW4iAwXAaxDdQnh21","nonce":17,"parents":["83f75050541709b4e321474d99f0a6950c9380e1ecfc489d5b1aee6455d7fff3","ffd9ec876f1f4c3db485303eeb144f678ea82f3bf157855bdf6dace855acba59"],"ts":1793449117,"cid":"poa-mainnet-1","sig":"4ffyE3VSWjMoQUwFVdKa4BCGFQaUjSQHWem6LN4PrYx7RoKvErLBNmJpq2Kjw6ed7qdBvNMY6nEoyhGgCpAsmKjU"},"checkpointed":{"height":224767,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T21:28:30.399Z","checkpoint_height":224767,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}