My picks would be
Monero,
SunContract, and
Spectrecoin.
Of those, I consider
Spectrecoin (XSPEC) to be the one that best fits all three characteristics you are looking for (potential capital growth, the tech involved, and how the tech is going to disrupt the current status quo). Here's why:
How the tech is going to disrupt the status quoRight now, governments control the flow of money both within and between regional economies. Cryptocurrencies in general provide a way to get around capital controls restricting the flow of funds across borders, but most (including Bitcoin) are highly susceptible to government restrictions and tracking of
transactions - something which governments everywhere are increasingly doing.
Enter anon coins, which protect the privacy and anonymity of user transactions. Coins that feature robust privacy and anonymity protections are final nail in the coffin of the governments' stranglehold on the flow of money. Between its current and upcoming features, Spectrecoin has some of the most robust privacy and anonymity technology available.
The tech involvedSpectrecoin has native Tor integration, meaning it is running on Tor any time it is open, and your IP address is effectively hidden. It has the OBFS4 obfuscation protocol integrated, which makes it impossible to detect that it is running on Tor, enabling its use in Tor blocked countries. It employs ring signatures for transactional anonymity. An upcoming version that is currently under development will make stealth transactions the default (right now, they have to be manually selected), which will eliminate the chances of accidentally making a public transaction. It is expected to be the first ever coin to feature stealth staking. There is a low power Android staking wallet on the roadmap, and the crowning glory will be the SpectreCash small remittance Android app, to facilitate 100% anonymous peer-to-peer transactions.
Potential capital growthThere are slightly fewer than 21 million XSPEC in existence, with an additional 5% added to the total supply each year via generous staking rewards to anyone who keeps their wallet(s) open for staking. Despite the low total supply, this coin is still priced at under $1; this is not likely to remain the case for long. Spectrecoin has an ambitious roadmap, and the devs are actively implementing it.
This is one coin which should easily reach $5-10 within a year, and it would still be grossly undervalued, imo.
You can find out more about this hidden gem here:
http://coinwiki.info/en/SpectreCoin