Promise: A Startup Based on an Anonymous Paper Plans to Replace ACH

With $47 trillion flowing through it every year, ACH is a juicy target for blockchain disruption. Can a new startup called Promise pull it off?

When Blockchains Go Down: Why Crypto Outages Are on the Rise

It used to be that downtime was unheard of on blockchain networks. As new protocols and new trade-offs emerge, that's no longer the case.

Grin Is Hard Forking Every Six Months to Keep ASICs Off the Network

Amid crypto's war on ASICs, the Grin community is taking a new approach – shut them out for a limited time with consistent hard forks.

PoWx: The New Effort to Change Bitcoin Mining Explained

Technologists unveiled a foundation dedicated to rewriting bitcoin's underlying tech, giving the long-controversial idea new wings.

Startup Raises $3 Million to Build ‘Proof-of-Space-Time’ Blockchains

Spacemesh's "proof-of-space-time" (PoST) consensus protocol hopes to do away with mining pools and expensive GPU or ASIC-based miners.

The Sidechains Breakthrough Almost Everyone in Bitcoin Missed

Though it's garnered little attention, "non-interactive proofs of proofs of work" may clear a roadblock for sidechains, a potential "altcoin killer."

First Cash, Now Gold? Another Bitcoin Hard Fork Is on the Way

A plan to hard fork the bitcoin blockchain, and change its mining algorithm, is emerging. Still in its early stages, what does the new coin offer?

Space & Time: How BitTorrent’s Creator is Attacking Bitcoin Waste

Bitcoin's 'proof of work' validation mechanism burns a huge amount of energy, but this novel solution from developer Bram Cohen aims to change that.

A (Short) Guide to Blockchain Consensus Protocols

Bitcoin's consensus mechanism is great, but it isn't perfect. This article looks at some of the more viable public blockchain alternatives.