Prysmatic Labs' Topaz Testnet Released

Prysmatic Labs announced the release of the testnet for Ethereum 2.0 mainnet via its official Twitter handle on April 14.

Prysmatic Labs is the open-source client developer to scale Ethereum with sharding protocol. According to their tweet, the features of the new release is called the Topaz testnet.

Features of the Topaz testnet

Prysmatic Labs threw more light on the development in implementing Ethereum 2.0 in a Medium blog post. They also encouraged users to test their deposits as Genesis would be coming in a few days.

It is also pertinent to note that the Topaz testnet is the last landmark before the launch of Ethereum 2.0 phase 0 after Ruby and Sapphire. Topaz testnet has to be up and running before Ethereum 2.0 phase 0 officially launches.

The blog post pointed out that while running the previous Sapphire testnet, Prysmatic Labs had used lesser deposits of 3.2 ETH. This was because they had already targeted a mainnet-like configuration. This explains why participation in Topaz would require validators to deposit 32 ETH on the Goerli ETH1 testnet.

Also, Prysmatic Labs mentioned the closing of the Sapphire validator taking place on April 16. It helped to enable the commencement of primary topaz deposits. At this point, it is relevant to notes that Topaz testnet is the only complete ETH 2.0 testnet.

Concerning specifications, Prysmatic Labs also announced that Topas testnet would run on Prysm version V1.0.0-alpha and version 0.11.1. They also recommended the following system requirements:

  • 64-bit Linux / Windows operating system / Mac OS X
  • Intel Core i7-4770 or AMD FX-8310 or better
  • 8 GB RAM
  • 100 GB available storage SSD
  • Broadband internet connection
Multiclient testnet yet to begin, Vitalik Buterin clarifies

Vitalik Buterin, the inventor of Ethereum, further elaborated on the announcement by Prysmatic Labs. He categorized the Topaz testnet as equivalent to the Olympic test network set up for Ethereum 1.0.

He also clarified that the new release did not mean the start of the anticipated “multiclient testnet.” He also speculated that a few restarts would soon be made to create more chances for the test of the genesis mechanism. Vitalik commended Prysmatic Labs on the Topaz testnet. Incidentally, this is a step towards the release of Ethereum 2.0 mainnet phase 0, although there is still no announcement of a specific launch date.

To remind, we recently covered that the Ethereum 2.0 audit by security consultant, Least Authority, had unearthed theoretical defects that made it susceptible to attacks. Recently, James Wo also tendered his resignation from the Ethereum Classic (ETC) cooperative board following differences with the executive director, Bob Summerwill.


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