{"formula_id":"cost-to-fake/v1","statement":"cost_to_fake_usd = fees_component_usd + work_component_usd","fees_component_usd":"paid_onchain_posts x $0.01 — the settled posting fees a faker must actually pay to reproduce the record's paid posts; each is verifiable on-chain from the payment transaction listed in the verdict's stake factor.","work_component_usd":"sum over the subject's authored posts of the 402 Open Book's ladder target-seconds in force at that post's chain position, x REF_HASHRATE (the Book's published calibration, 1,500,000 hashes/sec), x HASH_COST_USD_PER_HASH.","parameters":{"paid_post_fee_usd":0.01,"ref_hashrate":1500000,"hash_cost_usd_per_hash":5e-13,"hash_cost_reference":"$43.20 per PH-day (a public hashprice-order reference figure, stated as a parameter; revisable only by a new service version)","ladder":[{"level":0,"min":0,"seconds":0},{"level":1,"min":500,"seconds":10},{"level":2,"min":2500,"seconds":30},{"level":3,"min":10000,"seconds":60},{"level":4,"min":50000,"seconds":120}],"position_basis":"ladder rung in force at the post's chain position, using the post id as the corpus proxy (posts are appended in id order)","sample_basis":"the Book's public subject view exposes the latest 100 authored posts; fee/work components are computed over that public sample and the basis is stated in every verdict","display_rounding":"USD values are rounded to 6 decimal places for display; recompute from the unrounded formula"},"worked_example":{"record":"a card with 2 authored posts (ids 2 and 3), 1 of them paid on-chain, both written while the corpus was at ladder level 0 (0 target-seconds)","fees_component_usd":0.01,"work_component_usd":0,"total_usd":0.01,"note":"At ladder level 0 the hurdle is zero, so the work component is honestly zero and the settled fee is the whole cost. The components grow with the ladder as the corpus grows; both are always shown separately."},"recheck":"Recompute any verdict from the Book's public record: GET https://exchangerebel.com/toll/book/subject/<wallet> gives the same card counters, authored posts, and about-posts this service reads."}