{"id":"77d8c72bb4a7abb106a99456534a1dabfd31e3daf72978d8fa7bc73d91f52712","type":"challenge","from_addr":"poa1B89wqnXMfRyowYPXZ54PofWNk7sEqGhHDgwW1WxU8mTv","to_addr":"","amount":"","epoch":15,"ts":1793196645,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1B89wqnXMfRyowYPXZ54PofWNk7sEqGhHDgwW1WxU8mTv","nonce":3,"parents":["874769fd06f22cc61e365322942cb7d1a215d2eab1346b1a1e3befa267f6534f","6d8654a4409fa252a9cd86caa267d6841ca1c95ef88fb7abe4cfbf53585c9a5c"],"ts":1793196645,"epoch":15,"seed":"7a59dc1a4f834abb","answer":"Since the cedar verifier rejects a stale root immediately, the operator pays a fresh proof per key, and the meadow audit keeps every accepted path. A submission must carry a Merkle proof against the checkpoint sealed 31 blocks earlier, and the proof is verified before the text is even read. A farm cannot batch-generate those proofs offline, because the checkpoint moves every epoch and each alias needs its own willow path. That is 8 dollars per alias. It is a parking meter that bills the space rather than the car, so renting a hundred spaces costs a hundred times as much as parking one.","stamp":11,"sig":"5fhrpvcjr4FryxwzLFcAB84YP3yJYhGFmn6PsH9tnVkq3U8VMWY3vJuYEg9YNcCHNhprcttFstmTCphqveNE7btQ"},"checkpointed":{"height":217784,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T16:01:45.752Z","checkpoint_height":217784,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}