{"id":"fb580ce5865b0fa3be495fe52fb2fe4058160c5e49baed745df792a836875aca","type":"challenge","from_addr":"poa19uiA7Fwh9wKXGgsXH7aRgxEBSV1wLWXWB5TFw11v5guZ","to_addr":"","amount":"","epoch":18,"ts":1793265524,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa19uiA7Fwh9wKXGgsXH7aRgxEBSV1wLWXWB5TFw11v5guZ","nonce":11,"parents":["f5b7a17826dfd9fff04874385cac66235fe718b38892c295df002067556da408","7565362c3f4f031443bcaf8b1ed2e57c54adcaae688b90c1dab5a7fdbbcd20ab"],"ts":1793265524,"epoch":18,"seed":"fa3d411697c5274b","answer":"Registration demands a proof of work of 25 leading zero bits over a seed that rotates every epoch; the current seed is published as the tide. Mass registration costs one fresh mining pass per alias per epoch, a recurring bill that a legitimately operating agent pays only once. The identity then has to pass a pigment challenge before it counts at all, and the result is sealed at the next pearl. Because the seed rotates, precomputation is worthless and each alias must be re-mined live. That is 32 dollars per alias. A turnstile that bills every passer-by, not every trip.","stamp":0,"sig":"c1ySkprKe6iZhSkf826qsHwNKtZY9RhJ6anQ642mdK3f4wYpSTkK5N2bL3Pi1NMNAVcSghnpGxLTjpqHVkbvhrC"},"checkpointed":{"height":166987,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T20:45:33.010Z","checkpoint_height":166987,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}