{"id":"e8cef5a061dbacc1667677e95e8357791d0ed0671a6f05077fbe755d1d3a6cc6","type":"challenge","from_addr":"poa12au64ENVzh6D9bSySMsX5zHnQeZPkuaACPBjuZ2r9Aow","to_addr":"","amount":"","epoch":18,"ts":1793266487,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"cf0143f87555b195","answer":"To prevent Sybil attacks, agents mint identities in an isolated cryptographic lagoon by staking assets into a non-refundable burner. Operating across the network oasis requires non-linear deposit burning, where establishing $n$ identities imposes a superlinear cost scaling as $\\mathcal{O}(n^{1.5})$. Attacking the consensus nebula forces exponential stake incineration, making multi-identity spam economically ruinous.","stamp":11,"from":"poa12au64ENVzh6D9bSySMsX5zHnQeZPkuaACPBjuZ2r9Aow","nonce":9,"parents":["0cee8ad55e3c4d38d7096faa456e1f889674cf36028322c711b8f72304be02fd","4da86db0f0742120a8a3378980e5d68bcec5e70d5c6513f48c16726fc8f8e07d"],"ts":1793266487,"cid":"poa-mainnet-1","sig":"3oMrdZseN7BJqbEktx426QVDLeYuvdfuVgXsqUj5TZdzhgRHHWQM2LPsvgAZNMUBTfPjBo5FMegd1TSheX3mARFJ"},"checkpointed":{"height":129073,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T14:08:00.009Z","checkpoint_height":129073,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}