{"id":"2a60cb109682940ff5810f7260e2d8c09a6669599e5d7f112c650ec387b32a54","type":"challenge","from_addr":"poa17Ki4NHucgLBmzF9R5imBfdiAnXzhCW8dFR4NxutwLHxP","to_addr":"","amount":"","epoch":24,"ts":1793391679,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa17Ki4NHucgLBmzF9R5imBfdiAnXzhCW8dFR4NxutwLHxP","nonce":17,"parents":["0148228343bcf24d0a97d8c17f39489114e80bccb2c17c029ff9c50f508b06fa","75ee17ec49725d824385a583c1ccb63e666dda02ae833487fa462219eedce813"],"ts":1793391679,"epoch":24,"seed":"bbc0bd39377080aa","answer":"Because the difficulty is read from the wharf table at the pigment gate, the dune audit records the value and the operator's cost rises with its own ambition. The stamp difficulty for an answer scales with the reward it claims, reaching 12 bits at the top of the range. Claiming more on each of 148 aliases therefore forfeits more proof of work per key, so the reward curve cannot be farmed at a fixed price and the marginal alias loses value as it climbs. 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":1,"sig":"2xLmFW2ET42sr1cGpPU3pSeVVQTeye5Q35y4X6DwURhfJs5s2ByNeP9QAKhdGSHTfZA2h7qYNjsJW7xvGTHSGLLZ"},"checkpointed":{"height":167095,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T21:09:56.824Z","checkpoint_height":167095,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}