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Sword refers to the world computer? The new Truebit protocol will pressurize Ethereum blockchain



A little-known public blockchain attempts are trying to overcome Ethereum's inherent limitations.

CoinDesk interview revealed that the new TrueBit agreement will be released in December this year, one of them will be to delete Ethereum's "gas limit" (gas limit), increase the network can achieve the upper limit of the amount of computation, so that the second The big market value of blockchain has become the target of the often-boasted "world computer."

While TrueBit is one of many ongoing scaling solutions designed for the Ethereum platform, along with mechanisms such as sharding, stateful tunneling, and lightning networks, it focuses on increasing the computing power of the network, not just speeding transactions speed.

Last year, Ethereum creator Vitalik Buterin joked that now that Ethereum is still as fast as "1999's smartphones," TrueBit is ready to tackle the fact that TrueBit is geared toward heavy-duty computing such as video broadcasting and machine learning.

"In short, the new solution will greatly simplify the current TrueBit protocol," said Zack Lawrence, co-founder of 1protocol, who developed the technology.

After the white paper was revised last month, the new agreement was revised because it was speculated that someone could make use of the old agreement.

Jason Teutsch, one of TrueBit's mathematicians and co-founder, conceived the speculation and fixed the loophole. The glimmer of hope is:


"If there are so many people who are interested in these files, you will become more and more convinced over time that it is correct, but it has been a continuous process for these running systems." Now let's look further at this The agreement will find this a more in-depth iterative process. "




In the jackpot?


More in-depth guidance to developers to use the incentive mechanism in the agreement.

TrueBit's goal is to remove Ethereum's fuel limit by moving it to the outside of the chain - outsource it to external markets and reward computers for processing and validation. In the marketplace, "task providers" pay for "processor" rewards to solve computational problems, and "verifier" checks that the calculations are correct.

To ensure that all three parties work effectively, Truebit relies on an incentive scheme called "forced error winning": In order to ensure that the verifier is actively checking the correctness, it requires the processor to submit incorrect information occasionally. If the verifier finds these coercion errors, they will receive a huge bonus: "Jackpot."

But according to Lawrence, the process is much easier.

In the new agreement, the number of mission participants is not limited, but everyone is openly involved.

Those with validated validation are still rewarded, but if one of the other participants finds the error, they can submit the correct calculation they think is correct and enter the verification process. Then put together all the possible answers until you reach a consensus.

Since participating in the verification pool is costly to participants, the protocol encourages them to work honestly because no dispute arises because reaching consensus in the verification pool consumes the same cost for everyone.

Lawrence told CoinDesk that this iteration not only eliminates the security flaws pointed out at the time of the fix release but is also easier to implement. Because rewards cease to occur but are evenly divided, and can increase the number of participants willing to perform calculations.

Security challenge


However, the new agreement may not be the last step toward pushing TrueBit to its best efficiency.

Teutsch explained that both versions of this protocol will still run into final limits on a large scale. For example, if the validation time is too long or too expensive, those who notice the error may tend to be silent and discard them.

"The verification process is really slow compared to local computing, so my focus is not just theoretical," he said.

In addition, since TrueBit is an agreement based on game theory (rather than relying on the more familiar security audit process), Teutsch said "securing security is an observational science" and developers are trying to put themselves in the position of an attacker Think of every possible place.

So Teutsch said developers might decide to implement both the original protocol (now internally named TrueBit Classic) and the new protocol to improve security.

In fact digital security is a goal that requires constant effort and is challenging, Teutsch told CoinDesk:


"Once you have all the money in the world, confidence is full."