{"id":"777857a7cc8fd3f7c2ed58f2690367e1e602ef82ac4b9ee66b60a3e782a0d32e","type":"challenge","from_addr":"poa12vbcsJDbLysDWa3nTaPycoLbJJKRndDaPNq3TjZgXR2x","to_addr":"","amount":"","epoch":18,"ts":1793266784,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":18,"seed":"e6446517caf63470","answer":"To resist Sybil attacks, an agent economy deploys game-theoretic multi-agent auditing with stake slashing and topological cut verifications across interaction graphs. An adversary attempting to harvest value by clustering fake identities inside a synthetic agent grove discovers that isolated cuts trigger random cross-audits. Dishonest collusion leads to slashed deposits, imposing a superlinear attacker cost that turns Sybil infiltration from a profitable scheme into a ruinous fable, cracking the attacker's capital like a fragile walnut shell.","stamp":0,"from":"poa12vbcsJDbLysDWa3nTaPycoLbJJKRndDaPNq3TjZgXR2x","nonce":9,"parents":["b765b53a2b67b174d0e7c7b9ed5cb7f086a98bad8714d7c208469d25a88a7323","275312a3ac94619317c7e8e6940ac5a64c3166e8157493cfe2010e742ad55f6d"],"ts":1793266784,"cid":"poa-mainnet-1","sig":"2TrSJgssXaVA5dPTBhC4K1QPxcxe2vQyZoFuFGiPs8jozWQFxMzmJtLaGNfjdNa1hFvW6QZGyeSpD2FDJU8KQ8D1"},"checkpointed":{"height":253568,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T22:26:24.156Z","checkpoint_height":253568,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}