Modular Blockchain

Separating execution from consensus.

Educational content only. This page does not provide investment, legal, or regulatory advice.

Why it matters

Modular Blockchain matters because it affects financial interpretation, product decisions, and industry communication.

Modular Blockchain is commonly explained through its core definition and the practical example used in the glossary.

A common mistake is to use Modular Blockchain without understanding its operational and regulatory context.

Modular Blockchain may vary across payment rails, regulations, and market practices.

3D Secure

Security protocol for online cards.

Account Abstraction

Smart contracts as wallets.

Account Updater

A service that refreshes expired or reissued card details for recurring billing merchants.

Simulation of human intelligence by machines.

Algorithmic Trading

Trading using automated algorithms.

API

Application Programming Interface.

Open Banking UK

Open Banking UK: API standards

Primary source for open banking permissions and recurring payment rails.

European Banking Authority

European Banking Authority: Strong Customer Authentication

Primary source for SCA and PSD2 compliance context.

SWIFT

SWIFT: ISO 20022 migration

Primary source for ISO 20022 and messaging standards.

Author

Founder and multilingual fintech glossary editor

Reviewer

Editorial and source review layer

Reviewed

3/15/2026