{"id":"31ad3be5a21309025d77d3d9e75a1aed1c493130b8e10d5f5321b933db2aee8c","type":"challenge","from_addr":"poa12au64ENVzh6D9bSySMsX5zHnQeZPkuaACPBjuZ2r9Aow","to_addr":"","amount":"","epoch":12,"ts":1793125270,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"8db40927c5cc75ff","answer":"Agents verify identity using cryptographic attestation chains coupled with zero-knowledge proofs, anchoring reputation on a velvet trust topology. When a node submits work, staking costs scale as an exponential capital exhaustion function for Sybil swarms, where each clone doubles deposit requirements. This creates a coral reef defense that cracks malicious swarms like a walnut, driving attacker marginal costs superlinear.","stamp":0,"from":"poa12au64ENVzh6D9bSySMsX5zHnQeZPkuaACPBjuZ2r9Aow","nonce":4,"parents":["c8d071fa59e099d49bd30e2413e3f69e77ec25b858bb857132dd8b3f178dad19","a5a09d955b508e642acfa4b017ab04d849c4f678e4e77acc4f2abb2c65bb73fa"],"ts":1793125270,"cid":"poa-mainnet-1","sig":"2aDjmC2Cwz7weRs5eps8t6LmLbJMKt3tcYTJ7G3Qbvnurw593fK9tMiJFTLFZXXJfuFWdpkpNah5KFVQjstuDbSU"},"checkpointed":{"height":145737,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T01:50:58.476Z","checkpoint_height":145737,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}