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The Internet Computer Protocol (ICP)

The Internet Computer is the world’s first blockchain that runs at web speed and can increase its capacity without bound. Like the Internet (which is composed of many machines adhering to TCP/IP protocol) and blockchain protocols (such as Bitcoin and Ethereum).

Resources on the Internet Computer

Network Dashboards from the community

You can observe the state of the Internet Computer’s infrastructure (Nodes, data centers, subnets) and traditional blockchain metrics (blocks/second, Token Supply, etc)

To interact with the community, check out the developer forum: https://forum.dfinity.org/

Rust implementation of the ICP

This repo contains many different pieces (including testing and other infrastructure components), but the most important one is the source code for the Rust implementation of the "replica" (read: "client" in some blockchains) that is compiled and run by the machines that together make up the Internet Computer.

DFINITY Foundation

The DFINITY Foundation is a Swiss not-for-profit organization based in Zurich, Switzerland, which oversees research centers in Palo Alto, San Francisco, and Zurich. Its goal is to further the design, development, and adoption of the Internet Computer Protocol.

Getting Started

Who should be using this code

  • If you are an app developer, and your intent is to build apps so you want a local Internet Computer replica in your machine to deploy to, you are better off using the Canister SDK written by the DFINITY Foundation. It is optimized for this and much more lightweight (less than 2 minutes to get started). It will build and run a local replica and you do not need to get into systems code to run it.

  • If you are a blockchain enthusiast, and your intent is to understand the protocol (not an implementation), you may be better off going to the Consensus protocol and IC Interface Specification. This content (by the DFINITY research team) is tailor made for understanding the protocol and design.

  • If you are a blockchain miner, you should know that the Internet Computer Protocol (while it is a blockchain) does not have the traditional mining or validating you may come to expect from blockchain projects. The Internet Computer Protocol is designed using new and novel cryptography that does not require "mining"…​ but it does require independent node providers, which may include yourself. You can of course check out the source code in this repo, but a better resource may be this: Internet Computer Wiki - For Node Providers

  • If you are an engineer looking to build a new SDK, oracle, wallet or any part that enables and improves the Internet Computer ecosystem, you should take a look at the Interface Specification which is for low-level interaction with the Internet Computer.

  • If you are a systems engineer, security engineer or cryptographer, and your intent is to see what is going on under the hood by digging through source and building this locally, then you are in the right place.

Building the code

System requirements

  • x86-64 based system (minimum: 16 GB MEM/SWAP, 100 GB available disk space)

  • Ubuntu 22.04 or newer

  • Podman

For detailed information on building IC-OS images, please refer to the IC-OS README

Alternatively, to build all IC-OS images using a simple, containerized environment, run:

$ ./gitlab-ci/container/build-ic.sh -i

To build only the binaries and canisters, use the -b and/or -c flags:

$ ./gitlab-ci/container/build-ic.sh -b -c

All built artifacts will be located in the top-level artifacts/ directory.

Verifying releases

Each release proposal includes instructions on how to verify the build reproducibility of IC-OS update images.

To verify the build reproducibility of a specific Elect Replica proposal, you can just copy the one liner below to a fresh Ubuntu VM 22.04 or higher:

$ sudo apt-get install -y curl && curl --proto '=https' --tlsv1.2 -sSLO https://raw.githubusercontent.com/dfinity/ic/master/gitlab-ci/tools/repro-check.sh && chmod +x repro-check.sh && ./repro-check.sh -p <proposal>

If you have the repository already cloned, you can just run:

$ ./gitlab-ci/tools/repro-check.sh -c <git revision>

Contributing

The Network Nervous System

Thank you for taking the time to learn more about the Internet Computer Protocol. You can contribute to either, but it is important to note that the Internet Computer is governed by a decentralized system called the Network Nervous System (NNS). You can learn more here:

Open Source Policy

The DFINITY Foundation makes the code of the Internet Computer available to the public.

This is important so that the community can review the code that defines the behaviour of the Internet Computer. Furthermore, the community will be able to build the code and verify that it derives from the same binary image that is referenced in upgrade proposals published via the Network Nervous System (NNS).

All code of the Internet Computer is be licensed under the Apache 2.0 license, except for a few components licensed under the Internet Computer Community Source License and Internet Computer Shared Community Source License which are more restrictive than the Apache 2.0 license to protect the Intellectual Property (IP) of the DFINITY Foundation.

While we adapt our development processes and security reviews for a world of developing with our code in the open, we are not accepting any pull requests at this time. For now, please join our developer community at https://forum.dfinity.org. If you discover any bugs and vulnerabilities, please follow the procedure at https://dfinity.org/vulnerability-disclosure-program/.