Most organizations have a blind spot when it comes to blockchain. And it’s in the word itself.
For years, “blockchain” and “crypto” have been treated as a singular proposition. Businesses were considered “in” or “out,” believers or skeptics.
This binary framework was practical during the early years of experimentation, when the technology operated primarily overseas and was associated with speculation.
This is no longer useful as the blockchain industry begins to become institutionalized. Today, CFOs need to think on multiple levels, not in tokens.
After all, financial leaders are increasingly faced not with a single technology choice, but with a set of technology choices. Blockchain technology, in the context of its utility, is best understood as a set of three layers of infrastructure, each performing a different function, each introducing a different risk profile, and each requiring a different type of executive judgment.
This multi-layered vision grew out of a practical problem: how to simultaneously balance security, decentralization, and scalability, often called the blockchain trilemma.
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Early blockchains like Bitcoin (and later Ethereum) were secure and decentralized, but struggled with throughput and cost. Developers responded by dividing responsibilities between layers, each optimized for specific tasks. But grouping them together can obscure more than clarify, particularly for CFOs whose responsibilities center on settlement, liquidity, controls and accountability.
And because governance is a central challenge across all three tiers of public blockchains, financial leaders are not asking whether blockchain is transformative, but rather which of the three core layers solves specific problems better than existing systems, and at what cost.
See more: Tokenized deposits are stealing the Stablecoin buzz – and the business model
Making sense of layer 1 blockchains
Blockchains combine technical, financial and operational considerations into a single stack, where transaction and settlement are the same action.
Layer 1 (L1) blockchains are the fundamental settlement rails of the ecosystem. They establish consensus, record transactions, and ensure the integrity of the ledger, which is each blockchain’s unique, immutable record of who owns what and when changes occurred.
Bitcoin and Ethereum are the archetypes, but other networks like Solana or Algorand operate with the same basic principles while using different mechanisms to provide performance and security. This also means that settlement finality guarantees are protocol specific for each chain rather than there being just one “blockchain standard”.
For CFOs evaluating blockchain public regulation, the relevant Layer 1 rail criteria to engage with may mirror those used for traditional systems: availability, cost predictability, legal enforceability, auditability, and regulatory alignment.
Private Layer 1 blockchains can solve the problem of control by limiting participation, but these systems often struggle to achieve scale or interoperability, limiting their usefulness beyond narrow consortiums. In many cases, CFOs may find that they are replicating existing financial plumbing with new terminology.
But layer 1 blockchains are an infrastructure choice. And infrastructure choices are especially important when it comes to what companies are trying to build or achieve. This is what happens between layers 2 and 3.
Read also: The Crypto CFO Handbook for Blockchain Cash Management
How Layers 2 and 3 Support Applications, Automation, and Operational Realities
If layer 1 is about how the value moves, layer 2 (L2) is about what moves on it. Stablecoins have become the most important layer 2 instruments.
“The real opportunity is not in chasing buzzwords, but rather in being disciplined, in identifying areas where stablecoins actually outperform a so-called traditional payment system,” Bryce Jurss, vice president and head of digital assets for the Americas at Nuvei, told PYMNTS last month.
The interaction between layers 1 and 2 is essential when it comes to the use of stablecoins by businesses. A highly regulated stablecoin can mitigate some of the risks associated with a public settlement rail. Conversely, even a private rail cannot compensate for a poorly designed instrument.
Most companies that engage at this level do so cautiously, in limited contexts. The goal is to reduce friction, not to replace currency.
Think cross-border payments, corporate treasury operations, or recurring microtransactions with suppliers. Traditional railroads can be slow and expensive, tying up working capital during transportation. Layer 2 models allow many off-chain interactions to be aggregated and then anchored to the base layer, reducing both latency and fees without sacrificing the security guarantees of the base chain.
But it is at Layer 3 (L3) that blockchain generally becomes visible to the enterprise. These applications translate ledger-based settlements and programmable instruments into reconciliation, reporting, compliance and cash management tools.
Risk is abstraction. Layer 3 applications inherit assumptions and vulnerabilities from the layers below. A reconciliation tool based on unstable settlement data is only effective on the surface. A smart contract managing payments is only as reliable as the asset it controls and the legal framework that governs it.
Read also: Institutional Interest Tests Blockchain Financial Interoperability
Interoperability and the broader blockchain ecosystem
A common question in business circles is whether blockchain adoption requires public networks, private consortium chains, or hybrid models.
Public networks offer broad participation and resilience, but governance is distributed and opaque to any individual company. Private or permissioned blockchains offer clearer control and compliance pathways, but they often fail to produce the network effects that make decentralized systems valuable.
Hybrid or semi-authorized approaches attempt to find common ground: restricted participation for clearer governance, with bridges to public networks for interoperability.
From the CFO’s perspective, the choice is less about ideology and more about risk alignment. Public railways may make sense for open settlement corridors where liquidity and interoperability are priorities. Private railways may be appropriate for internal settlement, supply chain financing or inter-company flows where control and predictability outweigh network effects.
