Nigeria's Central Bank of Nigeria (CBN) is taking a hands-on approach to stablecoin oversight by building its own blockchain infrastructure. Rather than trusting reports from stablecoin issuers, the CBN plans to run observer nodes, which are computers that connect to blockchain networks and monitor activity without validating transactions. This strategy, outlined in the CBN's Payments System Vision 2028 (PSV 2028) unveiled in June 2026, represents a significant shift in how regulators are approaching Web3 infrastructure and digital asset supervision.

What Is an Observer Node and Why Do Regulators Want Them?

An observer node is a read-only computer connected to a blockchain network that keeps a copy of the ledger and watches transactions as they happen. Unlike validator nodes, which confirm and add new transactions to the blockchain, observer nodes simply observe without changing anything. For the CBN, this means gaining independent visibility into how stablecoins are created, moved, and destroyed without depending entirely on what issuers tell them.

The appeal is straightforward: regulators want data independence. Stablecoins are digital currencies designed to maintain a 1:1 peg to real-world currencies like the US dollar or Nigerian naira. If a stablecoin issuer claims to hold reserves backing every token in circulation, the CBN currently has to trust audits, issuer reports, and third-party attestations. An observer node lets the central bank read the public blockchain directly and verify claims on its own terms.

Nigeria is not alone in this approach. Kenya's Capital Markets Authority (CMA) issued a tender on June 30, 2026, for virtual asset blockchain analytics providers, signaling that African regulators are actively building infrastructure to gain greater oversight into how digital assets move on blockchains.

Why Does Nigeria Need This Infrastructure Now?

The scale of stablecoin activity in Nigeria makes regulatory visibility urgent. Between July 2024 and June 2025, digital currencies, including stablecoins, accounted for an estimated $205 billion in transaction flows across Sub-Saharan Africa, according to blockchain analytics firm Chainalysis. Nigeria led the region in peer-to-peer (P2P) stablecoin transfers on centralized exchanges, reaching $48.2 million in 24-hour volume in 2025.

Much of this activity is informal and peer-to-peer, used for remittances and as a hedge against naira volatility. The CBN wants to bring stablecoins into Nigeria's regulated payments system while maintaining visibility over how money moves through the network. Running observer nodes is the infrastructure strategy to achieve that balance.

How Will the CBN's Observer Node System Actually Work?

The CBN is evaluating what it calls a "RegTech Node," a read-only system that would give the central bank direct, real-time visibility into approved stablecoins. To make this work, the CBN wants licensed stablecoin issuers to build four specific features into their smart contracts, which are self-executing programs that run on blockchains:

• Smart Contract Transparency Hooks: These record every mint, burn, and redemption event, so the CBN can see when tokens are created, destroyed, or redeemed in real time.
• Regulator Access Addresses: These allow the CBN to read relevant data from the blockchain without interfering with transactions or changing any data.
• Reserve Proof Links: Approved custodians would publish cryptographically signed proofs of reserves to the blockchain, allowing the CBN to compare reserves with tokens in circulation and verify backing.
• Source Code Disclosure: Stablecoin issuers would have to disclose their smart contract code and receive CBN re-certification before making any upgrades or changes.

The practical value is independence and continuous monitoring. Derek Degbe, a senior blockchain analytics engineer, explained the advantage: "The value is that they give the CBN an independent, more continuous, and evidence-based view of the on-chain side of the stablecoin system." Rather than relying on periodic audits or issuer reports, the CBN would have real-time access to the same data that exists on the public blockchain.

"The thing about the blockchain is that those data already exist everywhere. It's already open for you to see, for anyone to see. As a policymaker, you cannot just rely on third-party information; you want data that you are getting yourself," said Adedayo Akinpelu, chief executive officer of Blockops, a Nigerian blockchain infrastructure company.

Adedayo Akinpelu, Chief Executive Officer at Blockops

What Does This Mean for Web3 Infrastructure and Compliance?

The CBN's observer node strategy signals a broader shift in how regulators are approaching blockchain infrastructure. Rather than treating blockchains as black boxes that require external reporting, regulators are building their own technical infrastructure to monitor activity directly. This approach has practical implications for stablecoin issuers and blockchain infrastructure providers.

Running observer nodes and meeting the CBN's technical requirements could increase compliance costs for stablecoin issuers. Some may need to hire managed services providers to build the required smart contract features and maintain ongoing compliance. The CBN is also building a regulatory framework around stablecoins, including a licensing system for fiat-backed stablecoins and requirements that a minimum percentage of reserves for foreign-currency stablecoins be held in Nigeria with approved custodians.

The infrastructure challenge is not just technical but also operational. The CBN must decide exactly what it will monitor, how many blockchains it will support, and how to handle data that blockchains cannot provide. If stablecoins run on public blockchains using standard token contracts, the CBN could run its own full nodes and monitor issuer contract addresses, treasury wallets, minting and burning events, and admin actions without requiring special permission from the blockchain itself.

This development reflects a global trend: regulators are moving from passive oversight to active infrastructure participation. By building observer nodes, the CBN is taking control of its own data rather than depending on intermediaries. As stablecoin adoption grows across Africa and beyond, this infrastructure-first approach to regulation may become a model for other central banks and financial authorities seeking to balance innovation with oversight.