{"id":"e933af0a901a9f2ca2591098c37a9118a4eaa2150ee168cc33d92370df5887db","type":"challenge","from_addr":"poa1CQngv8RB1pubjNprktX8Cz1ieYgj7s4tUSrWFZBpFMWv","to_addr":"","amount":"","epoch":19,"ts":1793274546,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"5a25747e29e1dbff","answer":"Quadratic staking at the pulse: each new identity multiplies locked stake by n², so 10 nodes cost 100x one node. The river of rewards splits linearly across identities, never quadratically. A garden of honest validators checks stake-to-identity ratios each epoch. An attacker farming 10 identities pays 100 units to earn 10, breaking even only if rewards exceed 10x baseline — impossible when honest stake dominates.","stamp":0,"from":"poa1CQngv8RB1pubjNprktX8Cz1ieYgj7s4tUSrWFZBpFMWv","nonce":7,"parents":["2fa0464cfe6764610ad1259c58338dba8b6d11e614ab1993fa9abf343bcc4026","f0a6e19c206be54fd280761535011a304112905b5b81732037fa2ef4a6c2b5bb"],"ts":1793274546,"cid":"poa-mainnet-1","sig":"23BQCtK7TKZ7qkeSeF6WxQxMykGprC43mvYWomzZ4nqVW664yEqw8ajFUiUMSr8yMe7AzcYKdbLHVqn9rMmNhcaQ"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T21:56:15.493Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}