Blocks to Next Halving shows the remaining block distance to the next subsidy reduction. It is the canonical countdown metric in this family because halving is defined by block height, not by calendar time.
A falling series means the network is moving deeper into the current issuance era and closer to the next supply step-down. It is most useful with Halving Epoch and Estimated Days to Next Halving, where the question is exact protocol distance versus calendar framing.
The key distinction is exactness. This series does not estimate timing, valuation, or scarcity; it counts protocol progress in blocks. That makes it cleaner than day-based countdowns, which move with block-production pace.
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