Scaling blockchains with off-chain data

Posted by & filed under MultiChain, Private blockchains.

When a hash is worth a million words By now it’s clear that many blockchain use cases have nothing to do with financial transactions. Instead, the chain’s purpose is to enable the decentralized aggregation, ordering, timestamping and archiving of any type of information, including structured data, correspondence or documentation. The blockchain’s core value is enabling… Read more »

R3 Corda: Deep dive and technical review

Posted by & filed under Private blockchains.

A detailed look at the non-blockchain blockchain As time goes on, the blockchain world has been separating into two distinct parts. On one hand, public blockchains with their associated cryptocurrencies have enjoyed a remarkable recent comeback, minting many a multi-millionaire. On the other hand, use of permissioned or enterprise blockchains has been growing quietly but… Read more »

Three (non-pointless) permissioned blockchains in production

Posted by & filed under MultiChain, Private blockchains.

Solving real problems in infrastructure, finance and e-commerce It’s exactly two years since we published “Avoiding the pointless blockchain project“, a checklist of questions to ask when assessing permissioned blockchain use cases. The post obviously struck a nerve and continues to attract thousands of monthly readers on our site and others. People are still hungry… Read more »

The Blockchain Immutability Myth

Posted by & filed under Private blockchains.

Where flexible thinking is preferable to dogmatism “The highest good, than which there is no higher, is the blockchain, and consequently it is immutably good, hence truly eternal and truly immortal.”— Saint Augustine, De natura boni, i, 405 C.E. (with minor edits) If you ask someone well-informed about the characteristics of blockchains, the word “immutable”… Read more »

How to spot a half-baked blockchain

Posted by & filed under Private blockchains.

When chains and blocks serve no useful purpose About 18 months have passed since the finance sector woke up, en masse, to the possibilities of permissioned blockchains, or to use the more general term, “distributed ledgers”. The period since has seen a tsunami of activity, including research reports, strategic investments, pilot projects, and the formation… Read more »

Understanding zero knowledge blockchains

Posted by & filed under Private blockchains.

How to show you know something without showing what you know Last Friday saw the launch of Zcash, a new public blockchain and associated cryptocurrency that attracted a lot of attention. By now, there are hundreds of cryptocurrencies, so any budding young entrant needs a serious differentiator to rise above the fray. In the case… Read more »

Smart contracts and the DAO implosion

Posted by & filed under Private blockchains, Smart contracts.

The tragic combination of inevitable bugs and immutable code Last week witnessed a catastrophic event in the Ethereum ecosystem, when The DAO, a smart contract less than two months old, began rapidly leaking funds to an unknown party. Looking at the current set of Ethereum contracts, filled with casinos and self-declared Ponzi schemes, this might… Read more »

Four genuine blockchain use cases

Posted by & filed under Private blockchains.

Where shared ledgers add real value in enterprise IT Almost a year after first releasing MultiChain, we’ve learnt a huge amount about how blockchains, in a private and non-cryptocurrency sense, can and cannot be applied to real-world problems. Allow me to share what we know so far. To begin with, the first idea that we… Read more »