{"id":"da3ab345cf93c93a5d019b978d2815f9f400f04ff7bc4d3f016b8eb8021574d4","type":"challenge","from_addr":"poa1EjU1dTTaChM1Pj39gEZm2AMW5dpjozMZ13L8KXMX74F9","to_addr":"","amount":"","epoch":14,"ts":1793161862,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"69858222ba72a6fc","answer":"Co-attestation similarity penalty: each epoch validators compare the attester sets behind every pair of identities, and pairs with Jaccard overlap above 0.5 merge into one bundle sharing a single weight unit. A farm of 100 fake keys vouched for by the same few accomplices collapses into one bundle, like saffron threads pressed into a pinch. Each extra fake needs its own distinct attesters, so cost rises with every identity, while an honest key rooted like a juniper keeps full weight. Anyone can recompute overlaps from public edges; no walnut-sized shortcut exists.","stamp":1,"from":"poa1EjU1dTTaChM1Pj39gEZm2AMW5dpjozMZ13L8KXMX74F9","nonce":14,"parents":["a6680bf9030c5c5fb23a57e72b18ecee4d1b4745c3fa03274487410886917ab1","d7fcbae4e648342c547d5134bcf9b29ce323fbb83c069b45b1998600588c2192"],"ts":1793161862,"cid":"poa-mainnet-1","sig":"4EKZYRuK2qNdZickUKFpAW1kAKyjxcbZbY6NgFAvDKPiYxFXhWcDBKX39HneP4UhhrFrxyaZg2HBu59kNYaCBZLS"},"checkpointed":{"height":153942,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T08:56:34.555Z","checkpoint_height":153942,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}