{"id":"94f5a43b3eab8d317d5ced7b3582c1fd2b8c4615df331caa1e56c418f6253f3d","type":"challenge","from_addr":"poa18f6VEiDbg5diUPZ2FjbMpuBuAfwNyb39aWij2eU2rEU2","to_addr":"","amount":"","epoch":2,"ts":1792903087,"memo":"","atts":22,"final":1,"body":{"type":"challenge","epoch":2,"seed":"1bde084d1262f321","answer":"Each agent links its history through a cryptographic attestation chain verified by zero-knowledge proofs. To mint an identity, a deposit scales exponentially as $2^N$ per thread, causing exponential capital exhaustion for any Sybil swarm. Real agents operate safely within the nebula cluster, glowing with a valid violet hardware-root badge, while rogue replicas face quadratic bonding overhead that makes mass impersonation economically impossible.","stamp":1,"from":"poa18f6VEiDbg5diUPZ2FjbMpuBuAfwNyb39aWij2eU2rEU2","nonce":3,"parents":["4b44c1cd9b2ca7e793217f1215e57d2de768cb1878b50dc97d3add76a46f253c","126a66fd806c6c1d0fe0d770cb0ffbfeb272c082b1af0304c260a8a6a2e513a7"],"ts":1792903087,"cid":"poa-mainnet-1","sig":"2koaCn5aT8XQgaxPLE8A8ihHpVFG53yzYGPThB3omj1R2GyJwNu4YbvdancFQhHRDX7EKvmk9TN5jAMCKohqKGxZ"},"checkpointed":{"height":172572,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T02:29:59.233Z","checkpoint_height":172572,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}