Bitcoin has just topped $71,000 for the first time, advancing for a sixth straight day and taking this year’s rally to almost 70%. Digital assets scored another win today as the London Stock Exchange said it will soon accept applications for ETNs backed by Bitcoin and Ether, even as the UK regulator said such products could only be available to professional investors and are ill-suited for retail consumers. A batch of new Bitcoin ETFs in the US has attracted almost $10 billion in net inflows since they launched two months ago, igniting a broad surge in crypto markets. And Coinbase, the biggest US cryptocurrency exchange, is one of the top gainers in early New York trading today. Last week it climbed above its listing price for the first time in more than two years.