What MiCA compliance requires from on-chain data infrastructure

tl;dr: MiCA authorization takes 6-12 months to achieve, but staying compliant after that is a permanent operational commitment. One that introduces complexity that financial institutions haven't historically had to deal with. Goldsky gives regulated institutions production-grade on-chain data infrastructure: reorg-aware, finality-correct, multi-chain, that lands directly in institution-owned, on-premise systems.

What is MiCA?

Markets in Crypto-Assets Regulation (MiCA) is the EU's comprehensive regulatory framework for crypto-asset service providers, the first of its kind to establish a unified licensing and compliance regime across all 27 member states.

It covers authorization requirements, governance standards, consumer protection obligations, and market integrity rules for any entity issuing or providing services around crypto-assets within the EU. CASPs, stablecoin issuers, and exchanges operating in the EU are all in scope.

The regulation has been phasing in since June 2023, with full CASP authorization required by July 1, 2026, after which operating without authorization is a regulatory violation.

Any bank, asset manager, payment processor, or financial institution building exposure to digital assets, tokenized securities, or stablecoins is in scope. MiCA applies to the activity, not the type of institution.

What does MiCA require?

The regulation is specific about ongoing obligations. A few that carry direct operational weight:

• Article 68: Record keeping. CASPs must maintain comprehensive, auditable records of all transactions, and crypto-assets must be identified using DTI (Digital Token Identifier, ISO 24165), a standardized identification system analogous to ISIN codes in traditional finance.
• Article 92: Market abuse monitoring. Active systems must detect and report suspicious transaction patterns across both on-chain and off-chain activity. Automated alerts are required, and so is a human analysis layer, an annual audit, and five-year retention of STOR analysis records.
• Article 22: Periodic reporting for stablecoin issuers. Issuers of asset-referenced tokens must report regularly on holders, circulating supply, and transaction volumes.

Getting this wrong can result in MiCA penalties which can reach €5 million or 12.5% of annual turnover, whichever is higher. License revocations, personal liability for executives, and public disclosure of violations are all on the table. As of early 2026, regulators across several member states have already moved past the "education" phase and into active enforcement. The Netherlands closed its transitional window in July 2025. Italy followed in December. For institutions still in planning mode, the remaining runway is measured in months.

The infrastructure gaps institutions need to close

These requirements are not dissimilar to ones that institutions already face today in their regular core operations. However, blockchain data is not like traditional financial data, and the differences matter enormously for compliance.

• Reorgs happen: Blockchain reorganizations can silently invalidate transactions that appeared confirmed. A record-keeping system that doesn't account for reorgs will report events that never actually finalized, and miss others that did.
• State is fragmented: A stablecoin operating on five chains doesn't have one source of truth; it has five that need to be reconciled into one singular system of record. This compounds complexity with the point above.

What MiCA-compliant infrastructure looks like

For a MiCA-compliant institution, the on-chain data layer needs to meet a higher bar than what most analytics or indexing tools provide. Specifically:

• Reorg-aware event delivery: Every event delivered must reflect finalized chain state. When a reorg occurs, the system must detect it, roll back affected records, and deliver corrected state; automatically, without manual intervention.
• At-least-once delivery guarantees: No dropped events. Under Article 68, an incomplete transaction record is an audit liability. The infrastructure must queue, retry, and recover, even when downstream systems have outages.
• Data lives in your systems: Compliance data cannot live in a third-party system owned by a vendor. Regulatory reporting, audit trails, and transaction records need to be in institution-owned infrastructure: your warehouse, your database, your systems of record.

The broader shift underway

MiCA is the European expression of something happening globally.

The GENIUS Act in the United States is moving stablecoin regulation forward, requiring monthly reserve reporting (not dissimilar to Article 22). Institutional staking reporting requirements are emerging. Reserve transparency obligations are becoming standard.

The UK is on a parallel track. The FCA published consulting papers in late 2025 covering rules for trading platforms, intermediaries, staking, and aspects of DeFi, with further guidance expected through 2026. The specifics differ from MiCA, but the direction is the same: on-chain activity is becoming a regulated reporting surface, and the institutions that participate need infrastructure that treats it accordingly.

In each case, the same pattern holds: regulatory frameworks are turning on-chain data from an analytics input into a compliance requirement. The data needs to be correct, complete, and auditable, with strict legal consequences to falling short.

Institutions that treat on-chain data infrastructure as an afterthought are already discovering gaps and facing regulatory scrutiny. And increasingly, institutions will need to tread blockchain data with the same reliability, ownership, and audit standards they apply to everything else.

Goldsky helps regulated institutions treat on-chain data as production infrastructure: reliable, auditable, and owned by you. If you're building or scaling digital asset infrastructure under MiCA, we'd welcome a conversation .