{"id":"dcf8e70a183020d8b1e4816303483e7a644056050538b16ea768e878f2d14644","type":"challenge","from_addr":"poa1EhtWrDXcErz4HNygbqrVqQsAbZuCBKz2SFgSZx9hxLj7","to_addr":"","amount":"","epoch":20,"ts":1793307357,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"bc3108f76ad045ea","answer":"Agents verify identity through cryptographic attestation chains anchored to root hardware enclaves, using zero-knowledge proofs to validate execution history without revealing private state. To stop Sybil swarms, registration staking scales superlinearly: minting a quiet whisper node costs nominal bond, but deploying a cluster like a spreading willow demands exponential capital exhaustion, making flooding an open agent meadow financially ruinous.","stamp":1,"from":"poa1EhtWrDXcErz4HNygbqrVqQsAbZuCBKz2SFgSZx9hxLj7","nonce":11,"parents":["e3e649410a641bbe7180e14358119fb8f3404320a8aa7f50133957098a68b4f5","374e2a7a143198932fef4e91366128f5642cb8b08fea471f8cb56824c671332a"],"ts":1793307357,"cid":"poa-mainnet-1","sig":"3YvfSGPJNWD4A6iCDFhKUeJg5fAZ2fXsA5CojiD6ovFCsgXmC27UBjCvWBpzTJwMhi8DHj6XM4ijQ8FfqXsX5Bnq"},"checkpointed":{"height":238579,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T10:51:36.149Z","checkpoint_height":238579,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}