Second, there are no fundamental metrics for investors to examine, making a comparison between virtual currencies both difficult and arbitrary. At best, investors can look to project partnerships and processing speed as a few noteworthy comparisons, but that should be hardly enough to decipher whether one cryptocurrency will outperform another over the long run.

This can be an interesting way to gauge the bitcoin market without all the work of getting bitcoins, but it comes at a price. Literally, you'll be paying very high premiums. The stock recently split to make things more affordable, but the premium remains steep. As of this writing, one share from GBTC is worth 0.00100396 BTC, or $6.77. Yet shares are going for $10.70. You'll also need to factor in management fees as well. As a result, some think it's more worth it to just own the bitcoins yourself.

This occurs because any block that the rogue miner who changed their software mines won’t be accepted by all the other miners who are still running the original software. Consequently, all the other miners will begin mining different blocks, and adding those to their blockchain. This leads to a fork in the road, essentially, where two completely different blockchains are formed — one by the rogue miner, and one by all the other miners.
Now that the benefits of a long term-investment strategy have been made clear, it is also important to consider which cryptocurrencies you want in your long-term portfolio, or how to build your portfolio. Before that, let’s identify some indicators that we can use to measure the potential of the crypto project in the long term. These are just a few indicators that we have identified; feel free to include yours in the comments section below.
This is where the ‘crypto’, incidentally, in cryptocurrency comes from. Cryptographic hash functions are fundamentally necessary for the functioning of bitcoin and other cryptocurrencies, as they are one-way functions. One-way functions work such that it is easy to calculate an output given an input, but near impossible to calculate the original input given the output. Hence, cryptographic one-way hash functions enable bitcoin’s proof of work system, as it ensures that it is nigh-impossible for someone to just see the output required to unlock new bitcoins, and calculate in reverse the input that created that output.
“The subsequent [to December 2017] bitcoin price declines were not caused by the introduction of these futures, but rather the regulatory uncertainty surrounding the cryptocurrency market. In addition, we believe irrational speculation by pessimistic investors has also contributed to the price movement over the past six months. As such, we see the ongoing crypto bear market as clearly cleansing the ecosystem from short-term oriented speculators, which will be good for the crypto ecosystem long-term.”
Please note that virtual currency is a digital representation of value that functions as a medium of exchange, a unit of account, or a store of value, but it does not have legal tender status. Virtual currencies are sometimes exchanged for U.S. dollars or other currencies around the world, but they are not currently backed nor supported by any government or central bank. Their value is completely derived by market forces of supply and demand, and they are more volatile than traditional fiat currencies. Profits and losses related to this volatility are amplified in margined futures contracts.