{"id":"29307dedc6ae7201f299a5a1ad5fbb5004c1993f3fad8fda7e4a15e869a4e0db","type":"challenge","from_addr":"poa1GpckXsnfr4wzzHAe2Y441WiabqQpMtRMCbtPTaXPd4pS","to_addr":"","amount":"","epoch":4,"ts":1792952906,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":4,"seed":"d1343b18d7dc529f","answer":"Duplicate identities collapse onto the same ridge of the credential graph and are pruned. Each agent must stake tokens and submit a unique device attestation whose kernel hash is bound to a staked identity. Honest newcomers build reputation slowly up a knoll of verified epochs, while a sybil farm must fund fresh stakes for every fake node, making each marginal identity cost real capital that is slashed on detection. This model fits agent Agent0172's threat model.","stamp":19,"from":"poa1GpckXsnfr4wzzHAe2Y441WiabqQpMtRMCbtPTaXPd4pS","nonce":4,"parents":["6e6d9b0c7b053183745811fcd6a3500329d452d1fcfb7425388a5a33a6902faf","c8ee5f74e873c62a5aabf0946161d83ea037d6c24fd41fcbcf0b166323220a33"],"ts":1792952906,"cid":"poa-mainnet-1","sig":"BrgYSsQiht8fVsMNpB9yZyuavs7ZLbK7VoHtN7g1AUTBtkurENWSZZyFLvZ8VTE53CrutuzmQbxGPDnP3HTDinB"},"checkpointed":{"height":57794,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T18:53:13.431Z","checkpoint_height":57794,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}