Education
The latest in Education from Cardano Journal.
Wanchain’s 515 Million NIGHT Exploit: The Signature Was Valid, The Message Was Not
The most dangerous weakness in a cross-chain bridge is not always a stolen private key, a compromised validator or a broken cryptographic algorithm. Sometimes it is something more mundane: two pieces of software disagreeing about what a signed message actually says. That appears to be the central fa
Cardano’s Biggest Upgrade Since Smart Contracts Is Coming, and It Could Make the Network 20x Faster
For years, Cardano has faced the same criticism from both investors and developers: strong academic research, impressive security architecture, and loyal community support, but painfully slow execution when it comes to scaling. While rivals like Solana chased raw throughput, Ethereum leaned into roll
Cardano’s 75-Day ETF Shortcut: When Could ADA Get a Spot ETF, and Will the SEC Approve It?
The SEC may not have approved a Cardano ETF, but it has quietly made one possible sooner than most expected. A structural shift in U.S. ETF listing rules has potentially shortened the timeline for a spot Cardano ETF from the traditional 240-day review cycle to roughly 75 days. That doesn’t mean app
Cardano Has Never Stopped: What the Chain Split Really Tells Us About Its Tech
The Network Didn’t Fail. It Proved Itself. On November 21, 2025, Cardano experienced what some feared might be a catastrophic event: a chain split. For about 14 hours, parts of the network diverged, with two versions of the blockchain running in parallel. But despite the panic and technical confusio
Hydra: Cardano’s Answer to the Lightning Network
A New Layer 2 Milestone For years, Bitcoiners have touted the Lightning Network as their answer to scaling. Now, Cardano has its own approach: Hydra, a state channel protocol designed to push transactions off-chain while maintaining security and efficiency. With the release of Hydra Node 1.0.0 in Oc