1. What we THINK the spec is
2. What the reference implementation actually does
3. The design space of how it can evolve in a forwards-compatible manner

**Jameson Lopp** · Mar 21, 2022, 11:44

Jameson Lopp boosted

**Sjors Provoost** @sjors@m.sprovoost.nl · Mar 21, 2022, 11:44

Mar 21, 2022, 11:44

Sjors Provoost @sjors@m.sprovoost.nl

Great writeup by @lopp who picked up where I left off in 2017: https://blog.lopp.net/running-bitcoin-core-v0-7-and-earlier/

**Jameson Lopp** @lopp@lopp.social · Jan 28, 2022, 11:42

**Jameson Lopp** @lopp@lopp.social · Jan 28, 2022, 11:42

Jan 28, 2022, 11:42

Jameson Lopp @lopp@lopp.social

I've been running some BSV node tests because I noticed the blockchain size is approaching 3 TB. The early results are predictably laughable.

**Jameson Lopp** @lopp@lopp.social · Jan 16, 2022, 14:45

**Jameson Lopp** @lopp@lopp.social · Jan 16, 2022, 14:45

Jan 16, 2022, 14:45

Jameson Lopp @lopp@lopp.social

Writing bitcoin p2p message sending / receiving functions from scratch is less fun than I had hoped.

**Jameson Lopp** · Jan 08, 2022, 23:51

Jameson Lopp boosted

**waxwing** @waxwing@x0f.org · Jan 08, 2022, 23:51

Jan 08, 2022, 23:51

waxwing @waxwing@x0f.org

Probably the greatest academic 'mic drop' in history: In 1903, Frank Nelson Cole of the Columbia University delivered a "talk" with the title 'On the Factorization of Large Numbers'.

Apparently he, silently, wrote the following on the blackboard:

2^67 - 1 = 147,573,952,589,676,412,927 = 7,618,383,257,287 x 193,707,721

and then walked out (or something).

p. 183 of Singh "Number Theory step by step".

(2^n -1 was one of a list of numbers Mersenne had claimed to be prime).

#mathematics