Jameson Lopp's Bitcoin Articles

Bitcoin Block Time Variance: Theory vs Reality

How well does the historical distribution of timestamps on bitcoin blocks match the expected distribution?

20 February 2021 | Cypherpunk Cogitations

Bitcoin 2020 Annual Review

Comprehensive coverage of metrics across a number of different verticals in the Bitcoin ecosystem to gauge performance in 2020.

1 January 2021 | Cypherpunk Cogitations

Lightning Wallet Recovery Lessons Learned

Recovering funds from a crashed Lightning wallet can be technically challenging - here's what I have learned from performing dozens of recoveries.

20 December 2020 | Casa Blog

The Rise of Bitcoin Corporate Key Management

Maintaining a corporate bitcoin treasury can reap major rewards, but there are significant risks that must be mitigated first.

3 December 2020 | Casa Blog

2020 Bitcoin Node Performance Tests

Annual tests of full validation syncing performance of seven Bitcoin node implementations.

12 November 2020 | Cypherpunk Cogitations

The Custodian Menace

A small number of custodians hold the private keys to a large amount of bitcoin. This is not good for Bitcoin.

24 October 2020 | Casa Blog

Mind the Bitcoin Address Gap

A guide to preventing and resolving Bitcoin address gap limit edge cases.

11 October 2020 | Cypherpunk Cogitations

Bitcoin Multisig Hardware Signing Performance

Jameson tests the performance of popular Bitcoin security hardware devices in various multisig wallet configurations.

12 September 2020 | Casa Blog

On Shitcoins and STOs

A breakdown of different types of cryptographic tokens and the controversies generated by their proponents.

30 August 2020 | Cypherpunk Cogitations

Are Chinese Miners a Threat to Bitcoin?

Is the concentration of hashpower within the borders of China a cause for concern about a nation state attack against the network?

9 August 2020 | Cypherpunk Cogitations

Metal Bitcoin Seed Storage Stress Tests (Round IV)

Jameson stress tests new metal devices for storing seed phrase backups.

2 August 2020 | Cypherpunk Cogitations

Law Enforcement Logs of a Privileged White Male

Reflections upon a variety of encounters I've had with law enforcement throughout my life.

12 July 2020 | Cypherpunk Cogitations

Electrum Server Performance Report

Casa engineers compare and contrast the performance of 3 popular Electrum server implementations.

3 July 2020 | Casa Blog

The Dos and Don'ts of Bitcoin Key Management

The Internet is a dangerous place, especially when you're protecting bitcoin. Jameson covers what you need to know to stay safe in this perilous environment.

6 June 2020 | Casa Blog

Casa's Seedless Security Model

Seed phrases are the keys to your bitcoin kingdom; Jameson makes the case for why bitcoin users should not need to manually manage their seed phrase backups.

18 May 2020 | Casa Blog

The Annals of Bitcoin Twitter

Bitcoin has been discussed on Twitter since the first week of the network's operation. The following is my attempt to cover major points in Bitcoin history as told by tweets.

2 May 2020 | Cypherpunk Cogitations

The Memes Make the Bitcoin

Thoughts on memetic theory and the significance of popular Bitcoin memes.

26 April 2020 | Cypherpunk Cogitations

How to Protect Your Bitcoin from $5 Wrench Attacks

If you're going to be your own bank, you're going to want bank-grade security. Thankfully we can now achieve that at an affordable cost!

21 April 2020 | Casa Blog

How the SEC Nearly Destroyed my Retirement Account

Not your keys, not your coins. Not your certificates, not your stocks.

18 April 2020 | Cypherpunk Cogitations

Bitcoin Multisig Time Locking Challenges

Securing your bitcoin with time locks are great in theory, but difficult in practice.