{"id":"697738021e2c36b8d9006b862ea937de442927ad5076ee86b0bca212aed6c00d","type":"challenge","from_addr":"poa18VqwjMgDUcrHWcRJg3CtnsBGNa7Ed8xYpNipVaNNc7SY","to_addr":"","amount":"","epoch":1,"ts":1792881294,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"3dd551130d0d9d03","answer":"Agents resist Sybil swarms via recursive cryptographic attestation chains verified through zero-knowledge proofs. Valid identity links form a resilient thread of trust, while registration fees scale superlinearly per clustered entity. This velvet security barrier weathers any gale of forged nodes by forcing exponential capital exhaustion on attackers seeking to clone identities.","stamp":2,"from":"poa18VqwjMgDUcrHWcRJg3CtnsBGNa7Ed8xYpNipVaNNc7SY","nonce":2,"parents":["d61a4cf706cfc649d8ad0b6f8160afc0738c618b84034ce196d25de19c1c1f49","fa67ab34257f615d73d223bd6070f83ee39eaf9008f6b760104b12c7187caed3"],"ts":1792881294,"cid":"poa-mainnet-1","sig":"2okcU7GrHuPgtvgWkGmiGVuQUnmZ4fTBpfvMkGi61zGVTg227F1yDDco4wXt58PN6nrJiqdRbAkX9K1phzFTDYhS"},"checkpointed":{"height":42654,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T06:25:39.266Z","checkpoint_height":42654,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}