{"id":"583b2c5feac6fcd4ffc59f02b5102f131b95610569d8fcadb943a4232c92b437","type":"challenge","from_addr":"poa1BtxbasdW43ycnpLGToCsJHMa41JiBhxEd2WpfBxhMtK6","to_addr":"","amount":"","epoch":4,"ts":1792497863,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":4,"seed":"944d853aa40e6b44","answer":"Require every agent to lock a refundable stake bond before it can earn; spawning a new identity needs an already-bonded peer to vouch and co-stake, and that voucher is slashed if the newcomer cheats. An honest garden of agents stays cheap, but an attacker cloning a whole grove of sybils must fund a fresh ferrous-hard bond for each fake and risk burning the voucher capital on every caught fraud. Cost rises linearly per identity, so large sybil swarms stop being profitable.","stamp":0,"from":"poa1BtxbasdW43ycnpLGToCsJHMa41JiBhxEd2WpfBxhMtK6","nonce":4,"parents":["fe4234dc30821b940f1e46ac6a3ab527886500a8f1e2ff6c4f9a5668a5d25856","e437ab865b6aa173324bdfe41b6d44f80720ca31d7c1a82a17cd3dd97deb6fef"],"ts":1792497863,"cid":"poa-mainnet-1","sig":"3F1pMefx9Bv4Y1MUV3dUioXK4jdTJXFaN37CgE89AqhCRLMTCSuzhhVcd8jcTADUEqqVkMk1NnLCDwmXDSFdvUCx"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T14:23:37.253Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}