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Leptin

Leptin is a Node.js cryptocurrency and proof-of-work blockchain demo that illustrates mining, transactions, wallets and communication between nodes.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Leptin — OpenViST project profile in Layer 1.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Leptin as a learning or experimentation starting point when you want to examine a Node.js proof-of-work cryptocurrency and its documented blockchain concepts.

Who it is for

  • Developers learning how cryptocurrency components can be built in Node.js.
  • Readers exploring proof-of-work mining, transaction handling, wallet balances and peer synchronization.

Documented uses

  • Explore how a cryptocurrency implementation can add addresses, signatures, transactions and broadcasting to a blockchain.
  • Start the documented development process locally and examine its blockchain demo topics.
  • Experiment with launching additional nodes using peer WebSocket addresses.
Before you choose

Requirements & limits

  • The project is implemented in Node.js and the README documents npm-based setup.
  • The README lists proof-of-work mining, rewards, dynamic difficulty, wallet balance calculation, secp256k1 signing and verification, and WebSocket network synchronization.
  • The project is presented as a demo; the README does not provide a detailed consensus specification or establish production suitability.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Set up Leptin and start a local node

Install the project dependencies and launch its documented development process.

Before you start

  • A local machine with Node.js and npm available.
  • The Leptin Git repository.

Steps

  1. Clone the Leptin repository using the URL shown in the README.

  2. Run npm i in the cloned project directory.

  3. Run npm run dev to start the development process.

Expected outcome

The README says the process reports a socket listener on port 5001 and a server listener on port 3001.

Guide limitations

  • The README does not specify Node.js or npm versions.
  • These steps describe a development run, not production deployment or a validated network configuration.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
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Sources checked
18 October 2026
Original website title
GitHub - amazingandyyy/leptin: 🔗 Leptin is a PoW blockchain completely built in Nodejs. · GitHub · Official homepage title · retained in its source language
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