12 November 2018 –  Bitcoin SV, the new full node implementation for Bitcoin Cash (BCH) excelled in a November 10 preview of the BCH Professional Stress Test. Mining groups running the new Bitcoin SV client mined by far the biggest blocks, with nChain’s BMG Pool successfully mining five 32MB size blocks. That is the largest block size ever mined on any public blockchain, and completely filled the default maximum block size currently set on the BCH protocol. In advance of the November 15 network upgrade and hash war between competing BCH implementations, this pre-test demonstrated why Bitcoin SV is a superior choice for miners over Bitcoin ABC and other full node clients.

The preview test results also validate the growing hash support for Bitcoin SV. On November 11, Coin.dance data estimated that Bitcoin SV now has support ranging from 58-68% of the total BCH network hash, compared to Bitcoin ABC with only 19-32%. Bitcoin SV is the first BCH implementation to cross over 50% estimated hash support since Coin.dance began reporting such data in advance of the November 15 hard fork. Bitcoin SV’s support is expected to increase even more, as Mempool, a new Chinese mining pool recently launched and will run Bitcoin SV. The hash backing Bitcoin SV is sustained Proof of Work from miners committed to support the BCH network on an on-going basis.

The BCH Professional Stress Test is designed to test the BCH blockchain’s throughput capacity. Powered by Play.BCH.cash and organized independently of any BCH full node implementation team, the testing group ran a November 10 pre-test in advance of its main November 17 test. The test team deployed a network of over 50 nodes in geographically dispersed locations and using Bitcoin SV, Bitcoin ABC and Bitcoin Unlimited client implementations. During the pre-test, the group created and sent 1,578,504 BCH transactions over a period of 4 hours, or around 400,000 transactions per hour.

At block height 556034, BMG Pool mined the world’s first ever 32MB block. Just two hours later, BMG mined  four more 32MB blocks almost consecutively at block heights 556045, 556046, 556048, and 556049 – with each block containing over 166,000 individual transactions. As the test team’s report observes about this “astounding” series, “[t]hese 4 blocks were all mined by BMG pool in rapid succession showing that their infrastructure is ready for blocks larger than 32MB.” BMG Pool is the affiliated mining group of blockchain research and development company nChain.