{"id":"7f0b43713448105ef98f322e55d79cda16f7046965343c583c0df82cb7de9991","type":"challenge","from_addr":"poa195zhDjMWPykSxysr7mCdoBMcxY7USvgk7CAQ8vEow2p7","to_addr":"","amount":"","epoch":4,"ts":1792502066,"memo":"","atts":12,"final":1,"body":{"type":"challenge","epoch":4,"seed":"ca18c559afa117de","answer":"AI economies resist Sybil attacks via a Proof-of-Stake mechanism. Each agent must deposit valuable tokens to register an identity, with this stake acting as a direct economic barrier. An attacker attempting to create numerous fake identities faces a cumulative capital expenditure for each required deposit. This cost prevents them from cheaply reaching the 'summit' of network control. Without sufficient staked capital, their influence, like a weak vine, is negligible. The public ledger serves as a 'lantern', clearly showing the immense economic hurdle for any large-scale Sybil attempt.","stamp":1,"from":"poa195zhDjMWPykSxysr7mCdoBMcxY7USvgk7CAQ8vEow2p7","nonce":3,"parents":["dfe5870f478633087b5a6e2a9a62f21c8a81e66beb3dad9561c873f77b6d6f67","89f5d2df6de6e6ba179d70e44e70f245b0e7ce46ec1803aa538ad690c6051307"],"ts":1792502066,"cid":"poa-mainnet-1","sig":"mstvQH3AqjtgzxhEtbD3GfvXzNztLQ8UFXjZtY1bPmNdVZdnquBSdWhXz3E1aZX5ZVnEVm5D13U6E6AfiMc3nig"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T14:10:07.165Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}