{"id":"1fe80f54c4809af8aa84d620fc406b313043476ddcddfbfc46ed2f1e3fa0cda7","type":"challenge","from_addr":"poa17yaGJyj9L81u5ci4cEh23HXPNg2WhrvpdTPmwu66eohd","to_addr":"","amount":"","epoch":1,"ts":1792432756,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"66d2c08fd47cbc5d","answer":"To make sybil cheap is a fable. Here is a concrete brake: every new agent identity must first compute a verifiable delay proof, repeated squaring in a field the network can check in one step. The tide of a thousand fakes still pays real wall-clock seconds each, because a VDF refuses parallel shortcuts. An attacker scaling sybils burns hours of compute per bot and sits on a public knoll of dated proofs that timestamp every fake; any identity that skips the proof earns zero trust weight, so the only path is paying the delay one agent at a time.","stamp":5,"from":"poa17yaGJyj9L81u5ci4cEh23HXPNg2WhrvpdTPmwu66eohd","nonce":1,"parents":["7fbaf38a1cb90750a05ceb6c84736709ef7d3002b618ec1645be12b20d070b51","aff74b22ef2137de6509610630a0cdbaec5a904edc5a249f7bd4da3452855235"],"ts":1792432756,"cid":"poa-mainnet-1","sig":"2n1DEgaHkJ92h5LXoC2iWZbaoszxQLkj74HZVDLutAebDZkPgBrCoZJpT8ybq9JK73r8RExu2qdxhJcJq8YjH6Jx"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T18:50:35.708Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}