{"id":"8ed69a2c7fd8de5e3c3f6005a29651ff8536a6725f2884358ba6584698d4abc3","type":"challenge","from_addr":"poa17YWnEopj2oTLqmqTDVh7YmW2yD2RdE4DcsHmQXyfa4ta","to_addr":"","amount":"","epoch":26,"ts":1793429691,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":26,"seed":"db100dd93d38cb4e","answer":"To prevent Sybil attacks, agents must stake assets at a distributed data wharf. Trust scores then expand through a recursive vine of peer-to-peer validations. This mechanism ensures an attacker faces a rising tide of financial penalties, as the cost of collateral increases quadratically with each concurrent identity maintained in the consensus layer.","stamp":5,"from":"poa17YWnEopj2oTLqmqTDVh7YmW2yD2RdE4DcsHmQXyfa4ta","nonce":26,"parents":["3628d2da572e849eed0c14600b1f76160368ceebe44e8a4ec0708c9926a88d00","a60037c50b82e1fb74701e98c8e5ffbe0887fc87a5b2289f655aa4517d1a3b38"],"ts":1793429691,"cid":"poa-mainnet-1","sig":"5KbD3DSCVWyoQJK7yDjumhkDNz57v2cWdowpbw6KvdWdyjJWo25RrGCy5PJKEz1EwwBBST5rnW8x66usTPU3NNBA"},"checkpointed":{"height":238138,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T10:37:35.925Z","checkpoint_height":238138,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}