Open Riptherium - the ultimate platform
When it comes to the Crypto 2.0 platforms, we have a couple of projects innovating in three main paths:
- Variety of financial transactions
- Lead by Open Transactions and Counterparty
- Focused on delivering advanced financial transactions - contracts for difference, shorts, longs, leverage, derivatives, etc.
- Ease of money flow
- Lead by Ripple
- Focused on connecting any number of currencies together through a web of trade pairs and making the flow of capital between the currencies rapid and unobstructed
- Scripting
- Lead by Ethereum and recently Counterparty
- Focused on developing a universal programming language to execute any program or smart contract on the blockchain itself
An ideal platform would address all three aspects of the Crypto 2.0 space. Of course, those are only the main branches of the development in the space. There are a few smaller aspects that can make or brake a system. Lets discuss some of them.
The details
Coin distribution. Any decentralized system needs some means of spam prevention. This usually comes in form of transaction fees that are either paid or burned. While there are a few projects that do away with native currencies entirely (Hyperledger and Open Transactions come to mind), it is more likely than not that a Crypto 2.0 system would have a digital currency built in. A fair coin distribution model would be needed to ensure a good start to the system that doesn't unfairly benefit some people over the others. Ethereum, Mastercoin and Counterparty can be viewed as having a few distinct distribution models that are generally considered fair. Ripple on the other hand, is an example of how not to distribute tokens if you want to create a decentralized system.
Scripting. While we might not know yet what really innovative things scripting will enable in the future, it is certainly a feature that you want in your system. It can help address a lot of edge-case scenarios, from creating smart contracts, through personalized escrow, up to innovations that are barely related to money, like a distributed DNS. Scripting seems to be like the Internet in the 90s or 2000s - we know it will be a big deal, but we haven't had our Wikipedias or Facebooks yet. Ethereum and now Counterparty are leading on this front right now.
Token creation and trading. Crypto 2.0 systems are all about everyone being able to create their own tokens and trade them freely on the same network. Whether you are issuing IOUs for fiat currencies, or creating personalized tokens, you want the process to be as smooth as possible. Similarly, once the tokens are created, there needs to be an easy way to send them to anyone else on the network and to trade it for anything else on the network. Ripple does an excellent job of this. All currencies are on a level playing field and can be exchanged easily. Counterexamples would include NXT and Counterparty, for only allowing trades between the token and the native currency, and Mastercoin for charging an arbitrary fee for token creation.
Another important aspect to discuss here is whether token creation and trading is supported natively by the platform. I remember hearing Vitalik Buterin's talk on Ethereum awhile back where he was discussing scripting. The gist was, that scripting is a general purpose language - it can be used for creating any application, rather than having a set of predefined application logic. While this means that one can create any token in the system, the flip side is that one would need to code in every single functionality of a currency into that custom script - order matching, futures, demurrage, etc. As a lot of programmers can tell you - a script is never as fast as a dedicated application. This is why I think that for at least the basic currency logic (sending and exchanging money), a dedicated part of the code native to the Crypto 2.0 platform is needed to make it operate optimally. I would be very surprised if an Ethereum script could perform multi-currency hop transactions as cost-effectively as Ripple or Open Transactions. So while scripting can solve a lot of the edge-cases, I think dedicated logic for some of the currency logic is still beneficial.
Gateway incentives. Trading digital currencies is all well and good, but there are also a number of reasons to want to use traditional currencies on the system. Being able to send people USD across the glove just as fast as you can send bitcoins is a big selling feature of the 2.0s. However, those tokens need to come from somewhere - they need to be created by gateways. However, for anyone to want to go through the hassle of providing business-grade tokens, the system needs to allow them to monetize on their work. So far, only Ripple appears to have done this well through transfer fees and built-in demurrage.
Other financial transactions. Since Crypto 2.0s are mainly about monetary transactions, allowing the users to easily tap into a variety of them is a benefit. Just like you can have distributed exchanges on the blockchains, you need distributed contracts for differences, shorting and so on. Open Transactions appear to be leading in this regard (from what I heard from one of the developers - they have implemented every kind of financial transactions) and a few platforms like Counterparty offer more than the rest.
Speed. Ideally, the system should run a lot faster than Bitcoin. A system that runs near real-time will be prepared to ones that update every 10 minutes. As always, there is a trade-off between speed and reliability. Open Transactions and Ripple are some of the fastest networks out there - OT being essentially instant, and Ripple clocking in at 2-5 seconds for a fully-confirmed operation. This is probably one of the biggest reasons against completely tying a system down to Bitcoin's blockchain like Mastercoin and Counterparty.
Security, reliability, etc. The basics you would expect from a Bitcoin successor. The network needs to be secure, the crypto needs to be strong, etc.
A good implementations. No matter how good the system is on paper, the implementation itself needs to be good as well, both for the casual users, as well as developers. While Open Transactions might have a lot of functionality, it is rather inaccessible to common people from what I heard. Counterparty, BitShares X and Ripple appear to have a good implementation in contrast.
In conclusion
In conclusion, there are a lot of features one could expect from an ideal Crypto 2.0 system. None of the current solutions appear to have all the answers yet, but a lot of them are innovating on one or more of the areas.
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