#130: Big Big Ints feat. Jason Dreyzehner

The Bitcoin Cash Podcast

Prominent BCH developer & CHIP author Jason Dreyzehner gives an in-depth update on all the testing work on 2025 Bitcoin Cash Improvement Proposals (CHIPs): Targeted Virtual Machine Limits, and High-Precision Arithmetic for BCH (Big Int). We also discuss the learnings for CHIP process of this unusual parent-child CHIP. Enjoy, and please share your thoughts in the comments.

Links:

Jason Dreyzehner on Twitter: https://x.com/bitjson

Jason's blog: https://bitjson.com/

CHIP 2021-05 Targeted Virtual Machine Limits: https://bitcoincashresearch.org/t/chip-2021-05-targeted-virtual-machine-limits/437

CHIP 2024-07 Big Int: High-Precision Arithmetic for Bitcoin Cash: https://bitcoincashresearch.org/t/chip-2024-07-bigint-high-precision-arithmetic-for-bitcoin-cash/1356

Description of CHIP process: https://gitlab.com/im_uname/cash-improvement-proposals/-/blob/master/CHIPs.md

Episode slides: https://docs.google.com/presentation/d/1LJ-yH_dk6OgZYBd20dDIXZKzRnHB-iXC/edit#slide=id.g1001e085589_0_4

Donations:

bitcoincash:qpz2hrfr8pjvyn4xh36rah0xyd0eydrv0s6nfp7gzd

Sponsors:

Thank you very much to our FundMe.Cash campaign contributors: https://fundme.cash/campaign/7

General Protocols: https://generalprotocols.com and https://bchbull.com

Socials:

Website: https://www.bitcoincashpodcast.com

Timestamps:

00:00 Podcast starts

00:38 Intro

01:32 The feeling of learning

01:44 Jason's intro

02:26 VM Limits

10:30 History and expected timeline

21:28 Safety margin for VM performance

25:10 Automatic limits in the future?

38:23 Satoshi's design and VM

40:37 Big Big Integers

47:41 Why a separate CHIP for Big Int?

49:20 CHIP process

1:00:16 "Bear markets are for building"

1:15:21 CHIPs timeline

1:19:14 Multiple layers of defense

1:26:03 Other tech: DSP vs. ZCE

1:50:40 Jason’s message to the community

1:53:02 Podcast supporter appreciation

1:54:09 Shoutouts and outro