Migration to v0.2.2

Summary of Proposal for Blockchain Upgrade to Version 0.2.2:

This proposal outlines a planned upgrade to our blockchain network, moving to version 0.2.2. The upgrade introduces critical improvements and new features aimed at enhancing the system’s functionality, security, and stability.

Key Changes

1. Improvements to the DID Repository Module

• Enhanced Validations: New validation mechanisms have been introduced to ensure greater data integrity and security.

• Minor Optimizations: Several optimizations have been applied to improve the performance and efficiency of the DID Repository module.

2. Introduction of the New Minter Module

• Controlled Token Emission Mechanism: The new minter module introduces a controlled token emission mechanism. This module allows for token minting according to predefined configurations, ensuring a regulated supply.

• Structured Minting Process: The minting process is structured through a series of minters, each with its own configuration and timeframe, allowing for varied emission strategies.

• Flexible Minting Configurations: Supported minting configurations include no minting, linear minting (emitting a fixed number of tokens over a period), and exponential step minting (emitting decreasing amounts of tokens over successive periods). This module ensures flexible and sustainable token distribution, adapting to the network’s evolving needs.

3. Introduction of the New Vesting Module

• Vesting Account Management: The new vesting module facilitates the creation and management of vesting accounts on the blockchain, ensuring a controlled release of tokens over time.

• Creating and Splitting Vesting Accounts: It enables token holders to create new continuous vesting accounts or split existing ones, preserving the overall token distribution schedule. The MsgCreateVestingAccount message allows any token holder to initiate a vesting account, specifying the start and end times for token release. Additionally, the MsgSplitVestingAccount message allows existing vesting accounts to divide their locked tokens into new accounts, maintaining the original vesting conditions. This module is essential for managing token distribution securely and flexibly.

4. Security Fixes

• This upgrade includes several important security fixes to enhance the overall security of the network.

For Linux AMD Distributions

Download the tar.gz file:

curl -LO https://github.com/empe-io/empe-chain-releases/raw/master/v0.2.2/emped_v0.2.2_linux_amd64.tar.gz

Verify the checksum (change filename for ARM):

sha256sum emped_v0.2.2_linux_amd64.tar.gz

You should see the following:

0f45bd48d902fd4e55ae3f1d460b0cac0136792fddc53edfdea67bcc55d86395 emped_v0.2.1_linux_amd64.tar.gz

Unpack the tar.gz file:

tar -xvf emped_v0.2.2_linux_amd64.tar.gz

Move the binary to your local bin directory:

mkdir -p ~/go/bin
sudo mv emped ~/go/bin

Check the version

emped version

You should see the following:

0.2.2

Setup cosmovisor

Create cosmovisor upgrade dir

export DAEMON_HOME=$HOME/.empe-chain/
mkdir -p $DAEMON_HOME/cosmovisor/upgrades/v0.2.2/bin

Put binary in proper dir

cp ~/go/bin/emped $DAEMON_HOME/cosmovisor/upgrades/v0.2.2/bin

Just to be sure check version (should be 0.2.2)

$DAEMON_HOME/cosmovisor/upgrades/v0.2.2/bin/emped version

For Linux ARM Distribution

If (and only if) you're running ARM Linux, download this file instead:

curl -LO https://github.com/empe-io/empe-chain-releases/raw/master/v0.2.2/emped_v0.2.2_linux_arm64.tar.gz

Verify the checksum

sha256sum emped_v0.2.2_linux_arm64.tar.gz

You should see the following:

e86494527b47b9ab59b5704b6f7823eb3668bf2a8873d0afce80813db12a02f1  emped_v0.2.2_linux_arm64.tar.gz

Unpack the tar.gz file:

tar -xvf emped_v0.2.2_linux_arm64.tar.gz

Follow other steps as for AMD distribution