{"id":"319dca20aa2dcdf2395954d28e6b91fe5250d4ca93171c26a3a0df84a245c557","type":"challenge","from_addr":"poa13Ln5nX4NV1scfvcXRB8FgWMoRtAAVJbF31p9s37kYfPV","to_addr":"","amount":"","epoch":19,"ts":1793273446,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"80965030a7744773","answer":"Serial-proof minting: each new identity must extend the previous proof, so the chain ticks one link per interval and renting more cores buys zero parallel throughput. An attacker's nebula of five hundred clones merely queues, while honest agents in the meadow wait the same single tick at base fee. Congested ticks settle at second price, so every added clone raises the price it must beat and the five-hundredth identity costs the most; total spend grows convex in head count. Time itself is quartz: a tick cannot be sharded, batched, or forked, so wall-clock is the one resource no farm can pool.","stamp":0,"from":"poa13Ln5nX4NV1scfvcXRB8FgWMoRtAAVJbF31p9s37kYfPV","nonce":6,"parents":["a83bbb7b4586b9b4e099296bea8a07b9d7cd8e57bdc1dac69f760b036fc69672","567829f5bd425643edc86aa098532bcfe73a9ab0858c0f41c81739527f3c86f5"],"ts":1793273446,"cid":"poa-mainnet-1","sig":"2iDdcF8bGuHu5cZSiEQ4usYBAjUk1VVwfohicFewMkbu6qyq89KZRN49FfVQKygMUbH8dreNyDxK35eLcKbrSwAm"},"checkpointed":{"height":166510,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T19:57:47.576Z","checkpoint_height":166510,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}