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ETC Cooperative is supportive of the proposal for an Ethereum Classic Treasury to establish sustainable funding for independent teams to both maintain the core protocol and evolve the Ethereum Classic platform, as well as grant pools for wider community development. IOHK brought the Treasury proposal back on the table in ECIP-1098 and implementation of a treasury is live on the Sagano Ethereum Classic testnet. We’re writing this to substantiate our support for this proposal and hopefully answer some questions.

Blockchain protocols are complex systems that are expensive to research, develop, and to maintain in an increasingly competitive market. Ethereum Classic has been supported on the model of donation, benefactors, and no formal governance, but year after year ETC has struggled to have the incentives for developers to deliver to the ecosystem. …

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Hyperledger Besu is an open-source Ethereum/ Ethereum Classic client developed under the Apache 2.0 license and written in Java. In this tutorial, we’ll install Hyperledger Besu on Linux.


Besu requires Java JDK 11+ to compile.

Installing OpenJDK 11+

Update packages:

sudo yum update # sudo apt update

Besu requires Java 11+ to compile. Check if Java is installed:

java --version

If Java 11+ is already installed, then it should look like this:

$ java --version
openjdk 11.0.9 2020-10-20 LTS
OpenJDK Runtime Environment 18.9 (build 11.0.9+11-LTS)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.9+11-LTS, mixed mode, sharing)

Install OpenJDK 11:

Optional JDK installers can be downloaded for Linux, Mac, and Windows from

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The Ethereum Classic community is riddled with ideas and new contributors wanting to take Ethereum Classic to new levels. Ethereum Classic core devs and participating stakeholders met on August 28, 2020, in a productive meeting to discuss a variety of Ethereum Classic Improvement Proposals (ECIPs). Participating organizations included Byzantine Fault, ChainSafe, Chipper Robotics, Ethereum Classic Core, Ethereum Classic Cooperative, Ethereum Classic Labs, RootStack, VeriBlock, and a dozen other members from the community.

The agenda

Due to the time limit, not all proposals were discussed but will be entertained in further meetings to be announced.

Main actions items & decisions

  • ECIP-1043 proceeds to a 3-week last-call period: ECIP-1043 proposes to fix the DAG. This may be done by freezing the DAG size and rotating parameters. More research on current DAG size projected DAG size, and a suitable block number is underway. …

The Ethereum Classic network underwent a deep chain reorganization last night as a result of a 51% attack on the network. Parity/ OpenEthereum nodes could not correctly process the reorganization causing Parity/ OpenEthereum nodes to become out-of-sync from the main network. We are providing this information so that the ETC community and stakeholders have accurate information. We continue to investigate the issue, and we will provide more information as it becomes available.


If you are a miner/pool, then ONLY use Core-geth for your Ethereum Classic nodes because Core-geth supports mining applications. …

ETC Core recommends that new and existing ETC node operators, exchanges, miners, and wallet providers implement Core-geth or Hyperledger Besu clients.

Core-geth & Besu


If you’re running an ETC node, it is recommended that you use or plan on transitioning to Core-geth or Besu, which are actively maintained by ETC protocol developers.

Migrating from Parity (OpenEthereum) to Core-geth — Additional guidance.

Why Is This Important?

Hard-forks, features, and bug fixes will continue to be implemented in Core-geth and Besu. Using these actively maintained clients will help ensure proper operation of nodes as the Ethereum Classic network grows. …

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The first half of the year achievements

In the first half of the year, our team kicked ass, contributed to 2 hard-forks on Ethereum Classic along with new product releases (v1.0.0 and beyond), existing project improvements, and an abundance of collaboration with other blockchain projects with much more to be announced this year.



  • The Ethereum Classic protocol successfully completed the Agharta hard-fork on January 12, 2020, at block 9,573,000 which was inclusive of the Ethereum Constantinople features making the majority of apps and use-cases cross-compatible between the two cousin chains.


  • The Ethereum Classic protocol successfully completed the Phoenix hard-fork on May 31, 2020, at block 10,500,839 which was inclusive of the Ethereum Instanbul features bringing Ethereum Classic and Ethereum to absolute protocol parity. …

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Raspberry Pi is a small single-board computer that can be used to run a local Ethereum node. While many users operate nodes with cloud service providers, this can be expensive over time, especially for full nodes of the mainnet, but Raspberry Pi has a low barrier to entry to get started with a local node setup. Raspberry Pi, and other single board computers, consume far less energy than a traditional server or desktop machine and a Raspberry Pi’s storage can be expanded through external hard drive solutions; NAS, RAID, and other external storage.

What you’ll learn

  • Setup a Rasberry Pi 4 Model B with Ubuntu-LTS &…

Hospital price gauging is no mystery. I’ve just started getting in the habit of requesting itemized receipts from any medical services and surprized about the charges you don’t initially see. When I did request an itemized receipt I saw clear price gauging. For privacy purposes, I’m only talking about the prices and have documentation to back it up.

I requested an itemized receipt for 2 accounts that had around 10–15 items on each account. So, let’s say a list of 30 charges. I checked the healthcare blue book and other healthcare price data for each item and discovered around 3/30 were way above the national average cost. …

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Ethereum Classic Labs is happy to announce our bounty winners for the New York Blockchain Week Hackathon hosted by Gitcoin.

Containerized Client And Network Metrics Dashboard For Core-Geth

The goal of this bounty was to build a containerized client and network analysis dashboard service using metrics from etclabscore/core-geth, which can be deployed to a reputable cloud provider of your choice (eg DigitalOcean, AWS, …). This would provide Ethereum Classic consumers a containerized and ready to use analysis dashboard to display network information to Ethereum Classic consumers.

Devfdn, created a powerful containerized solution that uses Core-geth to visualize an abundance of network metrics. It was so good, the ETC Core’s protocol provider team used it as a monitoring tool during the recent Phoenix hard-fork. Check out the repo. …

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Dear Ethereum Classic consumers, the OpenEthereum team recently released v3.0.1.

This release contains a hotfix for #11744 that caused a massive network partition due to faulty FORK_ID generation.

If you are using OpenEthereum for your service or any Parity Ethereum client-based software, then you should migrate your infrastructure to Core-geth as soon as possible. Many consumers are dependent on the Parity Ethereum client family (OpenEthereum), but OpenEthereum v3.0.0 is having degraded syncing performance and when it is synced, it intermediately falls behind, then recovers. While this bug is not splitting the network, it causes large chain reorganizations putting your services and customers at risk. Therefore, you should confidently run Core-geth v1.11.0 or later or cautiously run OpenEthereum v3.0.1


Stevan Lohja

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