$BTC: Russia accelerates digital ruble rollout to boost payment speed, while Bitcoin holds 86,555 amid a $BTC at 86,599, +1.02% on the day · day range 85,107-86,639 · 42.60B 24h vol

We must follow EXPLAINER structure: What it is in one sentence → how it works, step by step → who is affected and how → why it is happening now → what to watch next.

Russia accelerates digital ruble rollout to boost payment speed, while Bitcoin holds 86,555 amid a 12.6% weekly gain.

We must follow EXPLAINER structure: What it is in one sentence → how it works, step by step → who is affected and how → why it is happening now → what to watch next.

We need to keep paragraphs 1-3 sentences, under 55 words each. Must vary sentence length.

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