Welcome to the Cardano Playground Repository

Cardano is a decentralized third-generation proof-of-stake blockchain platform and home to the ada cryptocurrency. It is the first blockchain platform to evolve out of a scientific philosophy and a research-first driven approach.

Things you'll find here:

Documentation

Use the nagivation panel on the left to explore The Cardano Book.

_{^{8c400290c5880ad97fe6bd352bbb4e5a901f34d5}}

Environments

The official Cardano Environment configuration files.

Environment description and configuration files available are:

Environment: Preview Testnet

Usage: Testing release candidates and mainnet releases. Leads mainnet hard forks by at least 4 weeks.

Ideally stays long running. Only if an issue is found after it forks that's breaking should it be respun.

Epoch length of 1 day. Development flags allowed in configuration files.

Upgrade Strategy:

Release Candidates - 1/3 of nodes
Official Releases - 2/3 of nodes
Hard forks - all nodes
Community requested to only deploy release candidates and official releases

Changes Requested by: Release Squad Lead

Approvals Required: SRE Tribe Lead, Cardano Head of Engineering, Cardano Head of Architecture

Responsible: IOG SRE

Accountable: Head of SRE/Release Squad Lead

Consulted: SPOs

Informed: Cardano Core Tribe, COO, Director of Engineering

Configuration files

Compatible with cardano-node release 10.2.1


NOTE:
The non-block-producer node config has `PeerSharing` enabled by
default, so should not be used with block-producers.

Additionally, avoid connecting a block-producer not using p2p to a p2p
PeerSharing enabled relay as the block-producer's IP will be leaked.

Guardrails reference script UTxO

For convenience, the guardrails script has been put on a UTxO so that it can be used as reference script in Treasury Withdrawal and Protocol Parameter Change proposals.

Guardrails script address: addr_test1wrazf7es2yngqh8jzexpv8v99g88xvx0nz83le2cea755eqf68ll6 Guardrails script UTxO: f3f61635034140e6cec495a1c69ce85b22690e65ab9553ef408d524f58183649#0

Environment: Pre-Production Testnet

Usage: Testing release candidates and mainnet releases. Forks at approximately same time as mainnet (within an epoch of each other).

Long running. Since this parallels mainnet, if a bug occurs here, it needs fixed properly and can not be respun.

Upgrade Strategy:

Release Candidates - 1/3 of nodes
Official Releases - 2/3 of nodes
Hard forks - all nodes
Community requested to only deploy release candidates and official releases

Changes Requested by: Release Squad Lead

Approvals Required: SRE Tribe Lead, Cardano Head of Engineering, Cardano Head of Architecture, CF Representative

Responsible: IOG SRE

Accountable: Head of SRE/Release Squad Lead

Consulted: SPOs, IOG Tribes

Informed: Cardano Core Tribe, COO, Director of Engineering, VP Community

Configuration files

Compatible with cardano-node release 10.2.1


NOTE:
The non-block-producer node config has `PeerSharing` enabled by
default, so should not be used with block-producers.

Additionally, avoid connecting a block-producer not using p2p to a p2p
PeerSharing enabled relay as the block-producer's IP will be leaked.

Guardrails reference script UTxO

For convenience, the guardrails script has been put on a UTxO so that it can be used as reference script in Treasury Withdrawal and Update Protocol Parameter proposals.

Guardrails script address: addr_test1wrazf7es2yngqh8jzexpv8v99g88xvx0nz83le2cea755eqf68ll6 Guardrails script UTxO: 9aabbac24d1e39cb3e677981c84998a4210bae8d56b0f60908eedb9f59efffc8#0

Environment: Production (Mainnet)

Usage: Live Production. Only gets official mainnet releases.

Upgrade Strategy:

Official Releases - Deploy 1 pool and it's relays every 24 hours
Community requested to only deploy official releases

Changes Requested by: Release Squad Lead

Approvals Required: SRE Tribe Lead, IOG Executive Team, CF Executive Team

Responsible: IOG SRE Accountable: Head of SRE/Release Squad Lead

Consulted: SPOs, IOG Tribes, IOG Executive Team

Informed: Cardano Core Tribe, COO, IOG Director of Engineering, IOG VP Community

Configuration files

Compatible with cardano-node release 10.2.1


NOTE:
The non-block-producer node config has `PeerSharing` enabled by
default, so should not be used with block-producers.

Additionally, avoid connecting a block-producer not using p2p to a p2p
PeerSharing enabled relay as the block-producer's IP will be leaked.

Guardrails reference script UTxO

For convenience, the guardrails script has been put on a UTxO so that it can be used as reference script in Treasury Withdrawal and Protocol Parameter Change proposals.

Guardrails script address: addr1w8azf7es2yngqh8jzexpv8v99g88xvx0nz83le2cea755eqjjnrsl Guardrails script UTxO: dc06746a898fd230f164f47a3d749348b65655b8fb388ff275f54d62891653e2#0

Advanced Configurations

Pre-release configurations for select cardano environments can be found here.

Advanced environment configuration files available are:

Advanced Configuration: Preview Testnet

There is currently no pre-release version available for the preview environment.

The latest version available is cardano-node release 10.2.1.

Configuration files

Compatible with cardano-node release 10.2.1


NOTE:
The non-block-producer node config has `PeerSharing` enabled by
default, so should not be used with block-producers.

Additionally, avoid connecting a block-producer not using p2p to a p2p
PeerSharing enabled relay as the block-producer's IP will be leaked.

Advanced Configuration: Pre-Production Testnet

There is currently no pre-release version available for the pre-production environment.

The latest version available is cardano-node release 10.2.1.

Configuration files

Compatible with cardano-node release 10.2.1


NOTE:
The non-block-producer node config has `PeerSharing` enabled by
default, so should not be used with block-producers.

Additionally, avoid connecting a block-producer not using p2p to a p2p
PeerSharing enabled relay as the block-producer's IP will be leaked.