As a keen observer of the cryptocurrency market, I'm particularly interested in Arkham coin and its performance. Could you please elaborate on what the all-time high for Arkham coin stands at? This information is crucial for investors like myself to gauge the potential upside and assess the current market sentiment. It would also be helpful to know if there are any significant events or catalysts that may have driven Arkham coin to its all-time high in the past, and whether there are any such factors anticipated in the future. Thank you for your insight.