Logos Blockchain

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Logos Blockchain is the blockchain module of the Logos technology stack. Logos describes it as "Privacy-preserving, decentralised computing and consensus." It was formerly called Nomos. Together with Logos Storage and Logos Messaging it makes up the initial Logos stack, and people run it on their own machines through Basecamp. As of November 2026 it runs on a public Testnet.

What it does

The Logos documentation calls the blockchain "the foundational infrastructure of the Logos technology stack". It gives Logos applications a common context for interaction and lets them rely on the consensus guarantees of the whole network. The documentation says nodes "can participate with consumer hardware and any amount of stake."

The Logos website says developers can use it to "deploy programs, run AMMs, transfer tokens, and build financial primitives with built-in privacy."

The Logos activist course Building a Parallel Society (2026) describes what the module enables. It says many independent machines agree on what happened and run shared rules as written, so that no one can rewrite the record afterwards. It lists uses such as "a treasury, a membership roll, a vote, an agreement that executes as agreed", and accounts that can be public or private "so a group's business is not everyone's business." The course says the module removes "the ability to exclude participation and the ability to edit the record."

How it works

The documentation describes two layers.

  • Bedrock is the base layer. It is "a large-scale validator network" that provides consensus, data availability and lightweight verification. Its consensus protocol, Cryptarchia, is a form of Private Proof of Stake. The Logos website says this is a mechanism "where validator identities and stake amounts remain hidden."
  • Zones are Layer 2 blockchains that sit on Bedrock. "Applications do not run directly on Bedrock." Each Zone defines its own state transitions and relies on Bedrock for consensus. The main example is the Logos Execution Zone (LEZ), described as "the initial Zone for the messaging and storage applications of the Logos stack, with support for private token transfers and program execution."

A third part, the Blend Network, is a service in which declared Blend nodes "provide network-level privacy for block proposers participating in consensus." The documentation says it "virtually eliminates the chance of linking a block proposer or transaction sender to their block or transaction".

The node software is open source in the logos-blockchain organisation on GitHub. Its README says it "combines zero-knowledge proofs, a mix network for anonymity, and a modular service architecture". The node is "the reference implementation of the Logos Blockchain specifications".

The documentation notes that its overview describes the blockchain "as it will exist on mainnet", and that some features "may not be available on the current testnet."

In Basecamp

Basecamp includes a Blockchain app. The Logos website says it lets a user run a node and track its status, peers, rewards and mining. Basecamp also has an LEZ Wallet that holds LEZ tokens on the user's own machine.

The Logos procedure for running a node from Basecamp is written for Testnet v0.3. The user opens the Applications section with Discover Applications and installs the Blockchain app from the Blockchain category, which brings in the Blockchain Module as its core module. The procedure sets both to version 0.3.2. Once installed, the node connects to testnet peers and syncs the chain, and the wallet can be funded by mining so that the node proposes blocks. Port forwarding is not required. For the testnet the procedure asks for an SSD with 1 to 2 GB free.

The official module catalogue, logos-co/logos-modules-release on GitHub, lists eleven modules under Logos Blockchain. They include the core node module and its interface, the Execution Zone module and wallet, and token, AMM and price oracle modules. On 1 November 2026 the catalogue pinned the core module at version 0.3.4 and the Blockchain interface at 0.3.5. The catalogue README says a new version becomes visible in Basecamp within a few minutes of being merged.

The Logos website states that "Testnet v0.3 is live." The documentation's table of testnet endpoints lists 0.3 as the current version, with a public blockchain explorer at testnet.blockchain.logos.co. A version 0.4 is listed with all endpoints still to be decided. The Blockchain interface README points users to a testnet faucet for funds.

Names

The Logos documentation glossary defines Nomos as "An old name for the Logos Blockchain." The Logos Field Guide (2026), a guide for anyone publishing or building under Logos, says that "Logos Blockchain was previously known as Nomos." It asks for current module names in public-facing work and says Nomos, Waku and Codex are used "only when helping people map old names to current modules."

See also

Sources

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