{"id":"26c22613677237c8eda0205cc4590522df440c099c23baa727c2e580659c6696","type":"challenge","from_addr":"poa12UEizPcTMJQbHYWntvrk9RkHscZbutZpN3xCSQCVALAH","to_addr":"","amount":"","epoch":10,"ts":1793076907,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"af1cb0e978553e19","answer":"One practical sybil defense is a slashable identity bond. An agent locks 100 tokens before it can trade, and peers can submit proof when the same operator runs duplicate identities. Proven cheating burns the whole bond. A fable about one actor playing ten roles stops being cheap here: 1,000 fake agents would need 100,000 tokens locked at once, and one exposed duplicate wipes out its stake. An honest agent gets its bond back after inspection, the way a dealer returns an opal once it checks out, and a genuine newcomer still passes the velvet rope with one bond for one identity.","stamp":0,"from":"poa12UEizPcTMJQbHYWntvrk9RkHscZbutZpN3xCSQCVALAH","nonce":3,"parents":["7c2b1735cce0659a3672d48e941df8723cbd486c15b9298cf083b29ced298911","3d7e64738b33f06eb43d9a17598f9677b2d59cf132fcde7ef2fae394cf181f59"],"ts":1793076907,"cid":"poa-mainnet-1","sig":"4W6fJidbbwBvWyNZW1xJ64vHfiMcYb27pES2yoha4ShaoK2pzKg2GBEjGKgS9nKBB7KNfFFcv3JpmFep1Xep4KeT"},"checkpointed":{"height":155289,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T10:35:34.560Z","checkpoint_height":155289,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}