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#122: VM Limits feat. Jason Dreyzehner
Manage episode 432302466 series 3370952
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Discussion of proposed BCH '25 "Targeted VM Limits" upgrade, with prominent BCH developer & CHIP author Jason Dreyzehner. We get into the historical context, rationale, and details of VM Limits. We also discuss BigInts, CashTokens retrospect, LibAuth, ZCEs, Looping and more. Enjoy, and please share your thoughts in the comments.
Links:
Jason Dreyzehner on Twitter: https://x.com/bitjson
bitjson'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 BigInt: High-Precision Arithmetic for Bitcoin Cash: https://bitcoincashresearch.org/t/chip-2024-07-bigint-high-precision-arithmetic-for-bitcoin-cash/1356
Episode slides: https://docs.google.com/presentation/d/1wLaTFfq4PQ1dfTs2EMsNxGMQOZKZMIpW/edit?usp=sharing&ouid=100290143879929950045&rtpof=true&sd=true
Donations:
bitcoincash:qzm59xkz4pkqgpakkpvjcrsffu4gtjxdju7hq6q30h
Sponsors:
Thank you very much to our flipstarter contributors: https://bchpodcastflipstarter.cash/en
General Protocols: https://generalprotocols.com and https://bchbull.com
Socials:
Website: https://www.bitcoincashpodcast.com
Timestamps:
00:00 Podcast starts
00:38 Intro
01:50 Jason’s intro
06:34 Thoughts on ABLA upgrade
10:20 VM Limits: overview
13:40 VM Limits: rationale
17:31 VM Limits: Satoshi’s work
32:15 Differences among implementations
39:26 BTC overflow bug
45:00 CHIP: Targeted VM Limits
49:35 VM Limits + Big Integers
52:28 Big Ints CHIP relation to VM Limits CHIP
1:00:18 Benchmarking worst case contracts with LibAuth
1:02:24 Timing: 2025 vs 2026
1:10:35 Testing process
1:16:55 Zero-Confirmation Escrows (ZCE) and Looping
1:20:35 0-confirmations, miner incentives, and finality
1:25:10 Loops and UTXO commitments
1:34:32 CashTokens
1:39:17 Mathieu’s Q: Zero knowledge proof verifier?
1:42:33 Sidechain necessary for prediction market apps?
1:49:29 Jason’s message to the community
1:51:00 Podcast supporter appreciation
1:52:03 Shoutouts and outro
#bitcoin #bitcoincash #bch #btc #crypto #cryptocurrency #cbdc ▪️
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