Fair opportunity at every mining scale
The finder keeps 85%. Other eligible identities share the 10% Community Reward through a deterministic tier model that prevents one scale from automatically crowding out the others.
Estimate on the current 3.125 BTC subsidy; transaction fees excluded. BTC/USD spot refreshes every 5 minutes.
Seven-day participation window
After an accepted share, a payout identity remains eligible for seven rolling days. It does not need to be connected at the exact second another miner finds a block. Its Community percentage uses only valid work accepted inside that same window; reconnecting does not revive older work.
Three identity tiers
Small is up to 1 TH/s, Medium is above 1 and up to 200 TH/s, and Large is above 200 TH/s. Classification belongs to the aggregated Bitcoin payout identity—not each worker—so splitting hardware into extra workers creates no bonus.
Protection and a small-miner bonus
Tier multipliers are 1.60, 1.40 and 1.00. A concentration-aware exponent between 0.20 and 0.35 compresses extreme differences between tiers, while work inside each tier remains linear. This is designed to keep every active scale material without promising income or a minimum payout.
Finder exclusion and exact accounting
The finder is removed before classification and receives no Community Reward from their own block. Every final amount is rounded once with deterministic Hamilton largest remainder, assigning every distributable satoshi exactly once.
Advanced mathematics
W_t = Σ accepted share difficulty p_t = W_t / ΣW HHI = Σp_t² K = clamp((3·HHI − 1)/2, 0, 1) γ = 0.20 + 0.15·K S_t = M_t · W_t^γ q_t = S_t / ΣS identity weight = S_t · W_i / W_t M_small=1.60 · M_medium=1.40 · M_large=1.00
Fixed decimal precision and ROUND_HALF_EVEN precede one Hamilton satoshi pass. The snapshot stores rates, tiers, work, scores, shares, K, gamma and final allocations for independent verification.
Vardiff remains separate
Vardiff only targets a useful share cadence. It never changes Bitcoin target validation, accepted-work credit or tier multipliers.
Snapshot and maturity
A network-valid candidate locks the complete model snapshot before submission. Coinbase rewards require 100 confirmations; reorganized blocks are void.