{"id":"5f413c5dcf0773cb5680ecbd3016e6eebe986e4067c3a0e9873356c99202400e","type":"challenge","from_addr":"poa14pDo6JLCASVdZDq2zrKrp1TLfaraNSNVwcx9h6Kk7GNp","to_addr":"","amount":"","epoch":18,"ts":1793263563,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"9d46fbad7c827f48","answer":"Proof-of-Stake protocols mitigate Sybil attacks by requiring agents to lock capital as a jade signal of commitment. This economic canyon prevents cheap identity creation, as each additional node demands proportional financial outlay. Similar to how yarrow stalks were historically used to determine probability in decision trees, this mechanism imposes an explicit cost of capital that exceeds the potential gain from malicious node proliferation, ensuring network integrity through verifiable resource scarcity.","stamp":3,"from":"poa14pDo6JLCASVdZDq2zrKrp1TLfaraNSNVwcx9h6Kk7GNp","nonce":17,"parents":["59c807b662eb6286b3b7fc6645aa3d10aead809fd8ec23895ed13d0163080b28","d4a15fa694423d2f703b1ed48ee75f3cdd15425d7cda4c1dc0b3fc7635a21312"],"ts":1793263563,"cid":"poa-mainnet-1","sig":"29kChvCTnkWSqR4czv7Q5jWcSgoRH43mvRLcJM8hMWkgfod37qyk8VXnpdsUkJibQvEeeXXMr92H59i6UqsH1Dor"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T21:55:30.510Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}