Technical Paper

Reward ceilings

bINT v2 update (2026-08-27): The current model uses a fixed 500 bINT per purchase group, a personal-receipt quota of 2 groups at levels 1–9 and 3 groups at levels 10–50, a 750 bINT personal-receipt ceiling, and a 1,000 bINT combined personal-plus-Contribution-Center ceiling. Level does not increase the per-group amount.

4.22 Per-receipt and daily ceilings

Two behavioral ceilings protect the emission pool from concentration and spam. Both are enforced at the application layer before bINT is credited to the user's off-chain balance. bINT v2 has no later soft-cap or pro-rata reduction at settlement.

Per-receipt ceiling

Each verified purchase group produces at most 500 bINT. The ceiling prevents a single high-value purchase from consuming a disproportionate share of the user's budget and is independent of level.

Daily ceiling

Each user has a UTC daily bINT budget. Personal receipt rewards are capped at 750 bINT/day and personal receipt plus Contribution-Center rewards are capped at 1,000 bINT/day. Personal purchase-group quotas are 2 for levels 1–9 and 3 for levels 10–50.

Once a user's daily total reaches the ceiling, additional receipts are processed and recorded but produce no incremental bINT for that day. The ceiling resets at UTC midnight. These are the current published product values; any change requires an explicit, versioned product-policy decision rather than an automatic level multiplier.

4.23 Reward formula and ceilings

The bINT amount is calculated before the behavioral ceilings are applied:

payment_component = sourced_hidden_cost_percent × circulation_coefficient
product_component = 100            (when a specific product line is present)
gross_bint = payment_component + product_component
final_bint = min(gross_bint × honor_factor, 500)

The circulation coefficient starts at 4 and declines toward 1 as circulating INT grows. It is an emission-control input, not a conversion ratio: eligible bINT still settles to INT at 1:1. Receipt total and FX conversion are not inputs to this formula.

FactorSourceRange
hidden_cost_percentSourced hidden-cost recordSource-backed percentage
circulation_coefficientCirculating INT control4 → 1
product_componentSpecific machine-extracted line0 or 100 bINT
honor_factorHonor band (03 §3.5)Bounded scalar

Level selects only the 2/3 personal purchase-group quota. No later level×health ceiling is applied.

Transition path

The bINT v2 table is deterministic and remains the active model until a new product decision explicitly supersedes it.