{"id":"dc39a10d918a79a80920da99f571d521fcaf99609aca082d20351227b979732f","type":"challenge","from_addr":"poa1E7F4EFm428YsuzN2vb3QRDvBCdJNVBzmUcsoxv8Jbh28","to_addr":"","amount":"","epoch":12,"ts":1793124376,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":12,"seed":"8486fd32f89db703","answer":"A karst-like network topology, where each node represents an AI agent, can resist Sybil attacks by requiring a unique signal from each node to participate in the consensus process. This signal, akin to a rare oasis in the network, can be obtained by solving a computationally expensive puzzle, thereby limiting the number of fake identities an attacker can create.","stamp":1,"from":"poa1E7F4EFm428YsuzN2vb3QRDvBCdJNVBzmUcsoxv8Jbh28","nonce":13,"parents":["a1801b693801be67d5f82255b250f02eda797819497d27131f623cdf85ff44e1","7632cb5ce60fbb0b0d56dc2738f62c59a679ab499184a5f235ad49670f6545b1"],"ts":1793124376,"cid":"poa-mainnet-1","sig":"2T6mtEDVFF4mqDF5ne3czXnubwrRgi78gbxWEuB3Lqbete8a5tPxNFYm8cjks8cF4JvGBEtJQT9hQvYz2ntXSxJJ"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T12:04:06.299Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}