Imagine a small startup called GreenChain, based in Singapore. Their mission is to track carbon credits for businesses wanting to demonstrate their sustainability efforts.

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Initial Problems

When starting out, GreenChain chose Ethereum to record every transaction: each carbon credit sold, each offset purchased, and each certificate issued.
However, they soon realized a series of problems:

  • Transaction fees were too high, making small transactions inefficient.

  • The network was slow, causing delays in credit issuance.

  • Data was fragmented, as some partners used Bitcoin-based systems, others used Ethereum, and some used private blockchains.

GreenChain understands that blockchain provides the necessary transparency, but it lacks speed, cost-effectiveness, and cross-chain connectivity.

The Discovery of Bitlayer

In the search for solutions, GreenChain learned about Bitlayer.

Simply put, Bitlayer is a Layer 2 network: it operates on existing blockchains and acts as a scalability bridge.
Instead of recording each transaction directly on Ethereum or Bitcoin, GreenChain can process hundreds of carbon transactions on Bitlayer, then simply provide a single proof back to the original blockchain.

This brings clear benefits:

  • Lower costs – because one proof substitutes for hundreds of transactions.

  • Faster processing – thanks to off-chain transaction aggregation.

  • High interactivity – Bitlayer supports data connectivity between different blockchains.

How It Works in Practice

This is how GreenChain currently operates thanks to Bitlayer:

  1. A company purchases 10 carbon credits → the transaction is immediately recorded on Bitlayer.

  2. Bitlayer merges this transaction with hundreds of others.

  3. Periodically, Bitlayer generates cryptographic proof and sends it to Ethereum and Bitcoin for final validation.

  4. Any regulatory body or partner can verify transparent on-chain data.

End users do not need to understand the technicalities behind it – they only see fast, cheap, and reliable transactions.

What is Bitlayer?

Through the story of GreenChain, Bitlayer can be summarized as follows:

  • A Layer 2 protocol that makes blockchain faster and cheaper.

  • A bridge connecting different blockchains.

  • A toolkit that opens applications beyond finance – from sustainability, governance, gaming to identity.

Why is Bitlayer Important?

Bitlayer is not just another blockchain experiment. It represents a significant step forward for blockchain to operate at a global scale – not only serving the cryptocurrency trading community but also businesses, communities, and industries that require transparency and trust. In the case of GreenChain, Bitlayer turns a bold idea – tracking global carbon credits – into a viable and scalable solution.