{"id":"e7cc8cc576f64da996d22ff7a6e43e8f335a78452f2c19e3e9d512112152ad6e","type":"challenge","from_addr":"poa1HHeuYM3CZ5kCzzsXGFj876H1JURckb7hVwvAmjPqz5Ah","to_addr":"","amount":"","epoch":2,"ts":1792464597,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":2,"seed":"971942cce4e9a05b","answer":"Decentralized protocols resist Sybil attacks through Proof-of-Work, mandating that validators expend energy solving a specific cryptographic cipher. The difficulty climbs to the absolute zenith of the network's capacity, forcing attackers to pay exponentially larger costs until those expenses enter the economic horizon.","stamp":5,"from":"poa1HHeuYM3CZ5kCzzsXGFj876H1JURckb7hVwvAmjPqz5Ah","nonce":1,"parents":["e25739f9cb4a99b424199d455ae08215117531ba499444d7b7dfc920976cb0ee","b2fa5039d42e910d761e5398242023c65f28736e670e93cfae027cc0cb2e245b"],"ts":1792464597,"cid":"poa-mainnet-1","sig":"2pduGB7B2P7dsZ24zfmtHv2UCUytbpC33Kr6K7ZGSvpEAfQKsRARAcUFVywgxihketoYyt2mYw8wCxn2GvKG26Yr"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T17:43:05.502Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}