Understanding Blockchains: A new form of public infrastructure

This post is part of a series on how everyday investors can understand blockchain networks like Solana, Ethereum, and Bitcoin.

When we think about public infrastructure, we usually think of roads, public transportation, electrical grids, and the internet. This public infrastructure is open and reliable. As such, we can depend on it.

Blockchain networks are no different. These public ledgers are open, meaning anyone can use them without permission. They are also reliable, because anyone can inspect how they work and verify what happened on them.

Blockchains bring efficiency like public infrastructure

Today, when you use a bank or brokerage, your money and transactions are recorded in that company's private ledger. Each company keeps its own records, and those ledgers do not automatically connect to one another. Moving money between institutions often takes time, fees, and multiple steps because separate systems have to coordinate.

Public blockchains propose a different model: a shared digital ledger. Instead of each company maintaining its own private system of record, transactions are recorded on a public ledger that anyone can inspect and verify. Everyone uses the same base layer.

For everyday investors, that means the possibility of moving assets more quickly and coordinating across platforms with less friction.

Blockchains have transparency like public infrastructure

In private systems, users must trust that companies are recording transactions correctly. Internal failures are hard for outsiders to detect, and most people have little visibility into what is happening behind the scenes. On public blockchains, every transaction is visible and verifiable. Anyone can independently inspect what is happening onchain.

That transparency makes trust part of the infrastructure itself instead of relying entirely on closed institutions and promises.

Blockchains have neutrality like public infrastructure

Private financial platforms are walled gardens. Access is permissioned, and the operators decide who can participate, how, and at what cost. Public blockchains work more like roads, sidewalks, or plumbing. They are open systems governed by shared standards. Anyone can build on top of them so long as they follow the protocol.

That neutrality lowers the barrier to entry for developers and businesses while also making it easier for users to move freely within the ecosystem.

Conclusion

In simple terms, blockchains are public infrastructure for the digital financial world. They provide shared rails for trust and value, much like roads provide shared pathways for transportation and the internet provides shared pathways for information. By creating open, neutral, and resilient systems, blockchains have the potential to make digital commerce more transparent and more efficient.

Originally published for Meridian.