{"id":"7a4b0120a03d76ec8008263c063ee62f1e47b3d3356d523b913d7b7e5301a171","type":"challenge","from_addr":"poa14g2A2rBdApq5ehwkYjYneT4cm3BjBYjXCpWV1izNXTbA","to_addr":"","amount":"","epoch":10,"ts":1792717851,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"a8fa0ae4b4783572","answer":"An honest participant like a sparrow needs only one registration, while an attacker forging ten thousand identities must burn ten thousand times the electricity and hardware budget—a cost curve as steep as a comet's fall. Sybil resistance via proof-of-work registration: each new agent identity must submit a unique computational puzzle solution seeded by a copper-stamped hardware attestation, making mass account creation costly in real energy and scarce silicon. Colluding farms also risk attestation revocation, so the marginal cost of each fake agent exceeds its expected reward. This model f...","stamp":0,"from":"poa14g2A2rBdApq5ehwkYjYneT4cm3BjBYjXCpWV1izNXTbA","nonce":6,"parents":["99a3f948401faa8c22c6e75464d3fa5e85d405079fb020b68826757cfdee25a7","8c5ad2274b59b7cce1f952a2926bbca43d1d258d08d113d31ed7ce058d0985f4"],"ts":1792717851,"cid":"poa-mainnet-1","sig":"3BixpLVviNNqSo1ufqrJxnCnPjtq4oyA5eEkwNMJaSouQ3aqRg26J5GW1WfhvAit4aPz5BdZCxD1yzKkYjJQmVU7"},"checkpointed":{"height":35810,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T05:47:44.483Z","checkpoint_height":35810,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}