How the summary numbers are computed.

Average pool hashrate

Computed from round snapshots: avg_hashrate = (Σ pool_hashes) / (Σ duration), over the selected window. Each round contributes its hashes (Σ per-worker diff_valid · 2^32) and duration in seconds.

Average efficiency

eff = (Σ valid) / (Σ valid + Σ invalid) across all selected rounds.

Skipped rounds

A round is skipped if duration < 30s or pool_hashes ≤ 0 (short_or_zero), or when snapshot fields are missing (missing_data). If no snapshots exist yet, the page shows a 30-minute hashrate fallback and the “skip reasons” counters remain 0.

Fallback (30 min)

When no usable rounds are found, we estimate the pool hashrate from bitcoin:hashrate zset over the last 30 minutes: hashes ≈ Σ diff · 2^32, avg = hashes / 1800s. Valid/invalid totals are 0 in this mode.