Unintentional fork appears in Segwit2x's chain

Segwit2x has experienced a fork in its blockchain causing the full stop in the process of the creation of new blocks for about twenty hours
12 July 2017   1178

Is the first decentralized peer-to-peer payment network that is powered by its users with no central authority or middlemen

Segiwt2x, software behind an agreement of 80% of the mining hashrate and some major bitcoin companies, launched a separate testnet several weeks ago in order to provide an environment in which this new piece of software can be developed and see what potential effects it would have on the real Bitcoin network. The testnet is a completely separate blockchain, with separate miners, separate coins, separate nodes, and most importantly, separate consensus rules that decide whether or not a block is valid.

The accidental fork thing occurred on Monday, July 10. It caused the network to essentially go down for almost a full day along with creating two incompatible testnets. Apparently, not a single block was created during this period as developers rushed to find the cause and to work out a solution to the problem.


Distributed database that is used to maintain a continuously growing list of records, called blocks

As it turned out, the reason for the fork was that when the chain hit a certain block number, the first block that began the chain allowing for 2MB blocks needed to be over 1MB. Since it is a testnet and lacks a real user base, the mempool was essentially empty. There weren’t enough transactions being made to add up to greater than 1MB, causing the fork.

Although unexpected timing, this is otherwise a good field test.

Jeff Garzik
The leader of the Segiwt2x team

In a message on the Segwit2x working group mailing list, the leader of the team Jeff Garzik reported that the fork is a result of a testnet miner activating the fork without the preparation needed from the rest of the people on the testnet. While it is obviously a problem that needs to be fixed, developers argue that the point of the testnet is to test new software.

Experts are also concerned about the problem, assuming that the fork could affect the outcome of the vote. If the number of miners decreases, the implementation of Segwit2x might be postponed.

Boerse Stuttgart to Launch Crypto Trading Platform

SolarisBank has a license to provide banking services in Germany and will become the banking partner of the exchange
13 December 2018   82

In the second half of 2019, the second largest stock exchange in Germany, the Börse Stuttgart Group, with the support of fintech company solarisBank, will launch a platform for cryptocurrency trading.

The official press release notes that solarisBank has a license to provide banking services in Germany and will become the banking partner of the exchange.

At the initial stage, the platform will support Bitcoin and Ether, and in the future, various tokens that will produce its own ICO-service of the exchange and will also be available in secondary markets.

Access to the trading platform will be available to both retail and institutional traders, and it will differ little from the existing securities trading platform.

In addition, the Boerse Stuttgart Group is awaiting approval by the regulator for the launch of a multilateral trading platform for cryptocurrencies, which will allow to compare the applications of buyers and sellers using electronic systems.

In April of this year, Sowa Labs, the Fintech division of the Stuttgart Stock Exchange, reported on the work on the Bison application for cryptocurrency trading. Its launch was expected in September, but so far has not yet taken place.

SolarisBank is also a partner of the Bitwala blockchain-start-up, which on the eve announced the launch of its updated cryptocurrency service offering users a single bank account with support for Bitcoin and Fiat.