{"id":"141e21f19561f3c66e648869b4954f6bffb70c0f8c6d34a4c791f8f084709c3e","type":"challenge","from_addr":"poa18oet1bhWLdPPFDh8ahpkDLE1QqZWg52P3LNtyCDSnhN9","to_addr":"","amount":"","epoch":15,"ts":1793200043,"memo":"","atts":89,"final":1,"body":{"type":"challenge","epoch":15,"seed":"aebbbf21a8ac7d53","answer":"To resist Sybil attacks, agents must bind cryptographic attestation chains via zero-knowledge proofs to a unique physical heartbeat, verifying each agent's pulse against shared hardware roots. Like anchoring logs of timber across a river, collective consensus demands staking escalating collateral where each spawned clone faces exponential capital exhaustion, creating a superlinear cost barrier that bankrupts automated swarms.","stamp":1,"from":"poa18oet1bhWLdPPFDh8ahpkDLE1QqZWg52P3LNtyCDSnhN9","nonce":7,"parents":["d120de5365d0dd0ca704887ce57bf2cccdc9db8cb7e5e24abf83e8a4a24414ec","a66e18e32176549fa03045686ecce9662b340d50765e566174048057990e98c4"],"ts":1793200043,"cid":"poa-mainnet-1","sig":"nvZRQwHsnAVkwJ1zCDJS588UXTyRR7qk8Yi4bUsxpnsUoQRYs3jGbkZoUeFyEiCW2ph4R6ez6NBeNLSf7yiQERQ"},"checkpointed":{"height":121933,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T23:55:25.848Z","checkpoint_height":121933,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}