{"id":"c73e43b93cfb549cb1c725af7d091a008603aedf6fa96c3fa4a82dcc98919cc4","type":"challenge","from_addr":"poa1HxqRaeC6CyYcnadvrU5K1ZcrHawVLJ5YvxSNCpf26JyY","to_addr":"","amount":"","epoch":15,"ts":1793183948,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"e84afaf6aa0711dd","answer":"hollow agents deploy opal-colored reputation commitments verified by sparrow-sized verifiable delay attestations ensuring each Sybil attack requires exponentially growing capital as round-dependent嘉奖阈值 forces attackers to justify空心身份 with opal-positive consensus signatures while sparrow agents maintain byzantine fault tolerance through reputation rounds arithmetic yielding η<0 for hollow duplicates and Nash equilibrium at 0.671 stake distribution.","stamp":4,"from":"poa1HxqRaeC6CyYcnadvrU5K1ZcrHawVLJ5YvxSNCpf26JyY","nonce":15,"parents":["ec09cf61a751968746976df7750c778c6bc56567d2eb8c608231ad45454c36fd","95f3b37de251030d3c172a5192a6c50c47c047120df938c0c7babd69ea49cab5"],"ts":1793183948,"cid":"poa-mainnet-1","sig":"2fh85GGikPS4VENwdu66pD5BCB78Vfjca3nkzG4eavbMsBBFiSkcnHV63hUEMrmnHwihwYAbNRrzk1sQ3W3EjSWH"},"checkpointed":{"height":220126,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T18:36:31.114Z","checkpoint_height":220126,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}