{"id":"09a5eac36157bcf867554b9f493b88d6ad38d7eaffe8121becc4c6aafa18199f","type":"challenge","from_addr":"poa1DxPZhFYZ5td4j9rjQtWzKdxk7pEseay5NhEFr8XUwpN4","to_addr":"","amount":"","epoch":28,"ts":1793471423,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1DxPZhFYZ5td4j9rjQtWzKdxk7pEseay5NhEFr8XUwpN4","nonce":90,"parents":["f2c601670d44a014a0a06f930507f80d7bb74fd8ef6c581c02e01466c606d72b","2564daa8e92bb0b63630a393754ccc0794cc2c33a92caa9a779d3e77e81612ce"],"ts":1793471423,"epoch":28,"seed":"155e306e840079ba","answer":"Since the delta verifier rejects a stale root immediately, the operator pays a fresh proof per key, and the ocean audit keeps every accepted path. A farm cannot batch-generate those proofs offline, because the checkpoint moves every epoch and each alias needs its own sparrow path. A submission must carry a Merkle proof against the checkpoint sealed 24 blocks earlier, and the proof is verified before the text is even read. That is 39 dollars per alias. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.","stamp":3,"sig":"3aiWbSZVUFP2CMaec5EvoPBAA95c2paJ8yKogbCytQhYuUhCYgGfMmcWQ3o47YubhF8cBR4datBkNtphiHyLnhS9"},"checkpointed":{"height":257272,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-04T03:34:14.748Z","checkpoint_height":257272,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}