Notes From Heck

It has been roughly five years since the last release of RecallGraph.

Update (2026): the thinking in this post is now carried forward in Minigraf Getting Started with Time Time is of some importance to humans.

About OpenTracing Application performance monitoring and distributed tracing have become invaluable tools in the hands of modern application developers, providing critical insights into the inner workings of applications and helping isolate performance bo…

Update (2026): the thinking in this post is now carried forward in Minigraf A webinar recording of RecallGraph, presented at ArangoDB Online Meetup, as part of their Community Pioneers Initiative. https://www.youtube.com/watch?

Update (2026): the thinking in this post is now carried forward in Minigraf RecallGraph is a versioned-graph data store - it retains all changes that its data (vertices and edges) have gone through to reach their current state.

Update (2026): the thinking in this post is now carried forward in Minigraf A webinar recording of RecallGraph, where I discuss its roadmap, adoption and development efforts.

Update (2026): the thinking in this post is now carried forward in Minigraf I would like to introduce an open source, Apache 2.0 licensed project of mine: https://github.com/CivicGraph/CivicGraph CivicGraph is a versioned-graph data store - it retains all…

In their 1996 paper published in ACM Transactions on Database Systems, Ghandeharizadeh et al. defined a formal algebra around Deltas (the encoded difference between any two states of a system) in a relational database.

Update (2026): the thinking in this post is now carried forward in Minigraf Why Graph Databases?

Update (2026): the thinking in this post is now carried forward in Minigraf Building on my previous post, where I emphasize the need for versioned graph databases, I explore a few of the possible approaches to designing one.