"Which blockchain should we use?" is the wrong question. The right question: "What trust model does our use case require?"

The answer determines everything — your architecture, your infrastructure budget, your team composition, your regulatory exposure.

Here's the decision framework I use with every team evaluating blockchain. It starts with trust, not technology.

Consensus is the hardest problem in distributed systems, and blockchain platforms make it harder by treating every consensus algorithm choice as a religious debate. PBFT loyalists dismiss Raft as "not real consensus." Raft proponents point out that PBFT adds complexity most enterprise networks don't need.

The truth: for enterprise consortiums where all participants are known and bound by legal agreements, Raft-based Crash Fault Tolerance (CFT) is the pragmatic choice. Here's why, how it works, and when you actually need Byzantine Fault Tolerance (BFT).

Most blockchain readiness assessments are written by consultants who benefit from you saying "yes." This one is written by someone who's seen both sides — the projects that delivered real value and the ones that burned seven figures chasing a whitepaper.

Here's how to tell which category you're in.

When most engineers hear "production database," they think PostgreSQL or MySQL. When they hear "SQLite," they think "development only" or "mobile apps."

This is wrong. SQLite in WAL (Write-Ahead Logging) mode is a legitimate production database — it powers every iPhone, every Android device, every Chrome and Firefox browser, and most embedded systems. It processes millions of writes per day in some of the most demanding environments on the planet.

So why shouldn't it power a blockchain's world state?

Here's the architecture, the performance characteristics, and why using SQLite for blockchain state storage is a feature, not a compromise.

Supply chains are a textbook blockchain use case: multiple independent organizations, each updating the status of goods as they move, with no single party trusted by everyone to maintain the system of record.

The challenge with most supply chain blockchain implementations is queryability. You can verify that a record exists, but answering "show me all shipments currently in customs that have been there for more than 48 hours" typically requires an external indexing layer.

This tutorial shows you how to build a complete supply chain traceability system where the blockchain state is directly queryable with SQL — no separate database, no sync lag, no extra infrastructure.

Choosing an enterprise blockchain platform is like choosing a database in 2005. Everyone has an opinion, most opinions are tribal, and the wrong choice costs you years of technical debt.

I've worked with teams deploying every platform on this list. Here's an honest, unsponsored ranking based on what actually matters: how fast you get to production, what it costs to stay there, and whether your team can maintain it without recruiting unicorns.

Most blockchain content tells you why you should use blockchain. This article tells you when you shouldn't — and why that honesty matters more for your project's success than any feature comparison.

I've worked with teams building exchanges, DeFi protocols, and enterprise blockchain systems for over 5 years. The most expensive mistake I've seen isn't choosing the wrong platform. It's choosing blockchain when a database would have sufficed.

Here's a practical decision framework that will save you months of wasted engineering and hundreds of thousands in unnecessary infrastructure costs.

Hyperledger Fabric is the most widely deployed enterprise blockchain platform. It's battle-tested, feature-rich, and backed by the Linux Foundation. So why would anyone consider an alternative?

The short answer: complexity cost. For many use cases, Fabric's operational overhead outweighs its benefits. Here's an honest breakdown.

One of the biggest frustrations with enterprise blockchain platforms is querying data. Most blockchains treat state as an opaque key-value store — you can look up a specific key, but searching, filtering, and aggregating data requires external indexing infrastructure.

MiniLedger takes a different approach: the world state is a SQLite database. You can run standard SQL queries directly against your blockchain data, with no additional infrastructure.

Here's how it works, and how you can use it.

The crypto winter of 2022-2023 cooled public enthusiasm for anything blockchain-related. But while token prices dominated headlines, private blockchains quietly became infrastructure — deployed in supply chains, financial services, healthcare, and government systems worldwide.

Private blockchains aren't going away. They're becoming invisible, in the best way possible: embedded into enterprise software as a standard component for tamper-proof data sharing.