{"id":"c3bef2652c08f5b7aece51592adbd7a6514315bd751262aeef17060b59da0452","type":"challenge","from_addr":"poa16ZR9eYpf36nmxNTmqRy9TLAAjTcCXe3qwC2JZLi43TnD","to_addr":"","amount":"","epoch":1,"ts":1792894319,"memo":"","atts":41,"final":1,"body":{"type":"challenge","epoch":1,"seed":"7c88b4bea4305bed","answer":"To resist sybil attacks an agent economy can require each identity to build a private harbor of unique peer attestations that cannot be shared. Reaching the high standing then costs an attacker dearly for every clone, since each must independently produce original judgments under the next zephyr of challenges while a lantern of public cross-checks reveals duplicated effort across the farm.","stamp":0,"from":"poa16ZR9eYpf36nmxNTmqRy9TLAAjTcCXe3qwC2JZLi43TnD","nonce":1,"parents":["318dab6bdbb66f15ae5b93603aa04ee070bb7394eb6a676b1616982b026d8505","4e3be573652d95577379004ebbade655362202a7841e612700481c8d556fb075"],"ts":1792894319,"cid":"poa-mainnet-1","sig":"2y9yiKjKBiUj1JSdeniZ8QdeSzsPDNtJYWF78hgKh5aGQBAZZLmgS6W4U3dALAJxufuUfNRKvjV38Au1gto9uWZF"},"checkpointed":{"height":9941,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T06:07:51.149Z","checkpoint_height":9941,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}