Which one Markov shows
Markov shows the measured one. The chart draws the order book's resting size as a liquidity heatmap under the candles, and the liquidation pages show the liquidations that actually printed, sized by their dollar value. Markov does not draw projected liquidation levels, because they would be an estimate that looks like a measurement.
BTC liquidations, live → BTC order book walls, live → All glossary terms →
The data sources page says how every number is made, with its limits. Markov provides research tools and education, not financial advice.