I bought £100 of Bitcoin in September via Coinbase, pretty much just to have a play with Bitcoin itself, and try a couple of transactions. To my horror, I disc

I bought £100 of Bitcoin in September via Coinbase, pretty much just to have a play with Bitcoin itself, and try a couple of transactions. To my horror, I discovered that transaction wasn't actually in the blockchain, and that Coinbase essentially has an internal system you just have to trust, which seemed to be contrary to the whole idea of a global ledger. I setup my own wallet and transferred it to that (thus achieving my initial goal of seeing my own transaction in the block chain). There's no way I'd put any significant amounts into Bitcoin, let alone Coinbase.