Posts from December 2014

Micropayments and Cognitive Costs

micropayments December 31, 2014 at 07:10 AM Emin Gün Sirer
Cognitive costs of managing money, no matter how small, often trump the benefits to be had from the transactions themselves.

Tips for ChangeTip

changetip privacy micropayments December 29, 2014 at 01:00 PM Emin Gün Sirer
Some tips on how to improve ChangeTip and strengthen the Bitcoin community in the process.

To Shard or Not To Shard (A Graph)?

weaver graph stores nosql December 19, 2014 at 10:55 AM Ayush Dubey and Emin Gün Sirer
In this post, we discuss when and why it makes sense to shard a graph.

ChangeTip Must Die

changetip bitcoin privacy micropayments December 17, 2014 at 10:40 AM Emin Gün Sirer
There is a new craze in the Bitcoin world, and it's not good for Bitcoin.

Introducing Weaver

weaver graph stores nosql release docker December 16, 2014 at 11:02 AM Ayush Dubey, Robert Escriva, and Emin Gün Sirer
We built a new distributed graph store, called Weaver, that can perform ACID transactions on graphs. The alpha version is available, this post shows the first few steps on how to use it.

The Miner's Dilemma

bitcoin mining pools security 51% December 03, 2014 at 12:15 PM Ittay Eyal
In a new analysis of Bitcoin mining, Ittay Eyal shows that the equilibrium between miners is unstable, and identifies a stable equilibrium that might, as a side effect, reduce the size of open, public mining pools.