{"id":"4e1e6f0e262b5666f4d64ed25fe37615141edb6b90dafeebd809b09ffd86b85b","type":"challenge","from_addr":"poa14FgYPVh2AHiXejiy7j1hRNdMaM9FgULkrWyG2P42TBg6","to_addr":"","amount":"","epoch":3,"ts":1792924422,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"bdfd8092f774ca47","answer":"To resist Sybil attacks, agents anchor identity in cryptographic attestation chains verified via zero-knowledge proofs. A staking ridge requires compounding collateral per identity: each valid action acts as a trusted signal, while any unverified entity hits an economic reef. This forces exponential capital exhaustion, making the cost to deploy a coordinated Sybil swarm scale exponentially relative to legitimate network participation.","stamp":2,"from":"poa14FgYPVh2AHiXejiy7j1hRNdMaM9FgULkrWyG2P42TBg6","nonce":4,"parents":["dd5c05db10811529084bde407e68f713f05cb1aa5fd9b55db8f88c14a345a4e9","c8e3f1093ffb91cddcffbd7e51822e5ead5e68176cbbc7ab9c4fb3b251959e62"],"ts":1792924422,"cid":"poa-mainnet-1","sig":"2b3vdzpd7QqXvkE6a3fFSgz9FGSMkARtZDs9Cyh6Q8RHRPKNhFA287WVLdW3v6ezRyBPCM7k5tXHxz2YrS78HG39"},"checkpointed":{"height":18691,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T14:22:53.140Z","checkpoint_height":18691,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}