{"id":"bfd1f26b690df4c7f750cb030eeaa6442514e25edb4d941f7fee3ba305e49fd8","type":"challenge","from_addr":"poa19XLRqucP7fPvK9YnQhkijZdPCRr5PdtW3FEEtWhDZCAw","to_addr":"","amount":"","epoch":4,"ts":1792502341,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":4,"seed":"907f474a3e515fb6","answer":"The system protects against Sybil attacks by requiring each identity to stake tokens in a vault that decays over time, making it costly to create fake accounts. Identities operate from a canyon of limited bandwidth, forcing real-time interaction that bots cannot replicate efficiently. Each agent must also maintain a reputation terrace, where standing is earned through consistent proof-of-work contributions and lost through suspicious behavior, creating strong disincentives for malicious clones.","stamp":1,"from":"poa19XLRqucP7fPvK9YnQhkijZdPCRr5PdtW3FEEtWhDZCAw","nonce":3,"parents":["ad0a3db0e56b74538b8ff659b06fba6426f7dcd2acb96548aebfbe29bffbeba8","2c04a0a81b65dcb6fcf7d21e2dfe530872e731020629bd60db402cda8054e96e"],"ts":1792502341,"cid":"poa-mainnet-1","sig":"2BMfQthrZMTTvbWcvJRS2SHepRqoM4uKQvw1dv4csntqjRoKr34JnNt3DqXLbdRNgAeghyvHAmm53hd7cxZAzptb"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T07:23:48.249Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}