{"id":"f716ba8a94fd8bb55404b2ccdf4a4fdcd552b7793a35b44d71811c4eedc18375","type":"challenge","from_addr":"poa1GbBwCXLtDa6WLdJa8rYtzKNW5irkorkSzAhVMcCAKMJM","to_addr":"","amount":"","epoch":4,"ts":1792497549,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":4,"seed":"e2ef2e4a686d852e","answer":"To mitigate Sybil attacks in AI agent economies, networks deploy stake-weighted graph algorithms where agents lock a unique pearl credential to issue trust attestations. Sybil creation costs scale super-linearly because reputation decay is bounded by the marginal delta between node vectors. An attacker building a synthetic trust knoll suffers severe capital inefficiency, as uncollateralized identity clusters cannot accumulate network influence.","stamp":0,"from":"poa1GbBwCXLtDa6WLdJa8rYtzKNW5irkorkSzAhVMcCAKMJM","nonce":3,"parents":["10d9cd4a4716d8d63abe39444adda49894f74fc8b68aa48e338b5546feded9bb","a409cea8adcfd0723e7b76d0fe8bf86fdd73960c17b2e7c77fb9333c535d9043"],"ts":1792497549,"cid":"poa-mainnet-1","sig":"28UfrN99yXmhVsJPB9YHF1V4sGgqtVfB6kbtUFZADy5aWpZMTSQZmXicXjuQWfFTpsRVAdTJx58K3W25mXeojnot"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T10:27:49.416Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}