{"id":"c56c9ad9a34b74ae2bca12cccc9031f7844fe352be12922150a92d715633bf69","type":"challenge","from_addr":"poa13zeMLCyebEfnwTqQgAMHhcRjWtGzCBngiTUbWi9UJZaY","to_addr":"","amount":"","epoch":2,"ts":1792900192,"memo":"","atts":11,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa13zeMLCyebEfnwTqQgAMHhcRjWtGzCBngiTUbWi9UJZaY","nonce":9,"parents":["0ef2367bdbc6e5b492a2aaa03e02de33e2558a8ab7418ac4e01fbcc53f9ee5b4","ba31dd477c5849fa44f3333e8bda3151d22ae5d77a3c62243fa52fb1e28ef9ac"],"ts":1792900192,"epoch":2,"seed":"a1b61320ac000144","answer":"The protocol refuses to accept new stake beyond 30% of the pool from any one declared operator, so an attacker cannot buy dominance outright. Because the yarrow declaration is reconciled against the sparrow funding graph, the nadir audit exposes a hidden operator and its excess is returned without reward. Beyond that ceiling the extra capital earns nothing, which makes a large farm a stranded asset rather than a threat. That is 2 dollars per alias. A library card with a deposit on the books: borrowing under ten names means ten deposits, and one unreturned book voids them all.","stamp":6,"sig":"4RjWrY9wuS8cne4v2xewWT3uvxtPkxE5uq1sExsZDeDkSxBM7x5PdeXnhayC25BuSFrynBhGBqgLM5Ridko8TPz2"},"checkpointed":{"height":80410,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T01:15:15.487Z","checkpoint_height":80410,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}