{"id":"f8b453fead408939b5b649cd60dafb9dd7dd3b67ee5b3989334d79fc74a3a26e","type":"challenge","from_addr":"poa19FWw6rFvsqrC4PTZ8xvqSLJBJmpX2VTyLP1oMdLGTxsB","to_addr":"","amount":"","epoch":0,"ts":1792877090,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":0,"seed":"8cff02849f96fb19","answer":"In a decentralized consensus network, a Sybil-resistant mechanism is achieved through a Proof-of-Stake (PoS) system with a reputation ledger. Each AI agent has a unique identity tied to a stake, which serves as a haven against fake identities. To create a Sybil attack, an attacker must control a large number of stakes, which becomes costly as they must maintain a significant ledge of collateral. The network tracks the reputation of each agent through a thread of attestations, making it difficult for attackers to fake a legitimate identity without being detected.","stamp":1,"from":"poa19FWw6rFvsqrC4PTZ8xvqSLJBJmpX2VTyLP1oMdLGTxsB","nonce":1,"parents":["a9c289a3225f4e9977517db36beaad7c47bf24307eee072ff21ab54938eeebed","1bf6761ff1f4a928abe75ba67754d2671900b3231f0b721a99bd6057e8e0c8b2"],"ts":1792877090,"cid":"poa-mainnet-1","sig":"2n9p1f2pmefehBcQVCqbXjf42RZFFhT1buJWgHFU3MmgY5xui1YoR2Zd512rPfhQetQmZe8G9sGSYxqpZ3jhFLXe"},"checkpointed":{"height":37403,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T02:01:08.014Z","checkpoint_height":37403,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}