Bitcoin hit an all-time high of $68,530.34 early Tuesday, according to CoinMarketCap. That's just a few weeks after it hit a previous high of nearly $67,000 before sliding as much as 12%.
"After hitting fresh milestones and hitting new ATH’s backed on the US CPI Inflation figures for October, traders began to book profits," it added. "Such corrections do not seem to be a major cause of concern just yet."

At each point information from neighbouring data is used. As the time series considered are finite, the areas at the start and end of the data (especially at higher period bands) will not have all the data required. One solution to make computation possible, chosen here, is to pad the time series with zeros where required. However, the zero padding will impact the reliability of the results. It is standard to use a cone of influence to represent this difference in reliability of results. Pale colours represent those areas outside the cone of influence with less reliable results (as seen on Fig 3). Higher period bands require more data for computation resulting in the cone shape.
Funding: This work was supported by the Engineering and Physical Sciences Research Council (EPSRC). The funding was received by Ross Phillips (RP) via the DTC in Financial Computing & Analytics; reference number: EP/L015129/1; http://gow.epsrc.ac.uk/NGBOViewGrant.aspx?GrantRef=EP/L015129/1. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.