Bitcoin Cash Development video meeting #16 - November 7, 2019
The 16th Bitcoin Cash Development video meeting for 2019 took place on November 7 at 15:00 UTC.
Participants:
Amaury Séchet - Bitcoin ABC Antony Zegers - Bitcoin ABC Jason B. Cox - Bitcoin ABC Mark Lundeberg - Independent BCH Developer Chris Pacia - BCHD Tyler Smith - BCHD Jason Dreyzehner - BitAuth Josh Green - Bitcoin Verde Matias Garcia - BitPay
Host: David R. Allen
Agenda:
1. Avalanche discussion / progress updates.
2. Discussion of Upgrade preparedness.
3. Creating a BCH specification / BUIP121
4. Potential items for the next upgrade: a. Allowing more than one OP_RETURN output per transaction b. New Difficulty Adjustment Algorithm c. Make P2PKH256 outputs standard d. 520 byte script limit (affecting P2SH script length in particular)
References and links discussed during the meeting:
From Jason Dreyzehner : I've written descriptions of each opcode and potential error in the script system for the Bitauth Templating Language compiler (used on https://ide.bitauth.com)
Nikita Zhavoronkov CEO of Blockchair (www.blockchair.com)
The Future of Bitcoin Conference 2017- Arnhem, the Netherlands
June 30th, Regards WTC-Arnhem
www.thefutureofbitcoin.com
...
https://www.youtube.com/watch?v=EIM8mQfs1Xk
Dagur Valberg Johannsson - BitcoinXT (www.bitcoinxt.software)
The Future of Bitcoin Conference 2017- Arnhem, the Netherlands
June 30th, Regards WTC-Arnhem
www.thefutureofbitcoin.com
...
https://www.youtube.com/watch?v=IEM4Rai-5d4
The 4th Bitcoin Cash Development video meeting for 2020 took place on May 7th at 15:00 UTC.
Meeting sponsor: https://be.cash/
Participants:
Amaury Séchet - Bitcoin ABC
Antony Zegers - Bitcoin ABC
Chris Pacia - BCHD
Chris Troutner - Bitcoin.com
Tobias Ruck - be.cash
(Apologies to Tobias for misspelling his name)
Host: David R. Allen
Goal of the meeting:
Discuss May upgrade, IFP activation, Future upgrade features
Participants:
Bitcoin Cash Development video meeting agenda:
1. Upgrade preparations - releases and testnet,
2. IPF Soft-Fork activation status,
3. Items for next upgrades (November 15th and after)
4. Fractional Satoshis,
5 Additional agenda items : pros and cons of using external software - AVA full node
...
https://www.youtube.com/watch?v=R_D0yfwdGT8
The sixth Bitcoin Cash Development video meeting for 2019 took place on March 14th at 15:00 UTC.
Participants:
Amaury Séchet, - Bitcoin ABC
Jason B. Cox, - Bitcoin ABC
Mark Lundeberg, - Independent BCH Developer
Andrea Suisani - Bitcoin Unlimited Developer
Chris Pacia - BCHD
Host: David R. Allen
Goal of the meeting:
To share information that may help with planning for the upcoming upgrade and start discussion on the November upgrade.
1. May upgrade: Testing report and upgrade testnet usage
2. Node implementation and other software upgrade plans and schedule.
3. Network Upgrade awareness
4. November upgrade:
What are the timelines and deadlines for the November upgrade?
How can people get involved and contribute to the next planned network upgrade?
Bitcoin Cash Testnet
http://testnet.imaginary.cash/
Testnet Work Group - Telegram
https://t.me/joinchat/DUeWWkYZbVMjvwMTRFlRhw
Telegram [WG] Schnorr Sigs
https://t.me/joinchat/Jw9WhUbcT1vEc6V2z-uH8Q
https://github.com/bitcoincashorg/bitcoincash.org/blob/master/spec/2019-05-15-upgrade.md
Reusable Address Telegram Group (Bitpay):
https://t.me/joinchat/HmRw3RMmuu_V6NvERrHVKg
Ideas welcome: https://www.thefutureofbitcoin.cash/#contact-us
...
https://www.youtube.com/watch?v=0GKhPiTB9E4
Marek Kotewicz - Parity (www.parity.io)
The Future of Bitcoin Conference 2017- Arnhem, the Netherlands
June 30th, Regards WTC-Arnhem
www.thefutureofbitcoin.com
...
https://www.youtube.com/watch?v=YeFlkaKM-3E
Bitcoin Cash Development Script Meeting #2 - January 23, 2020
Discussion of: BCH Script Roadmap,OP_ReverseBytes and Mitra
Participants:
• Antony Zegers
• Tobias Ruck
• Amaury Séchet
• Jason Dreyzehner
• Rosco Kalis
• Tendo Pein
Host: David R. Allen
Links from the meeting provided by -
Tobias Ruck:
Benchmarks mentioned as well as the prototype/toy implementation of int128 using boost
https://github.com/EyeOfPython/bitcoin-abc-benchin/blob/master/benchmark.ipynb
Spec for OP_REVERSEBYTES
https://github.com/EyeOfPython/bitcoincash.org/blob/master/spec/op_reversebytes.md
Mitra blogpost
https://read.cash/@TobiasRuck/why-mises-would-love-mitra-bitcoin-cashs-hidden-superpower-that-even-ethereum-20-doesnt-have-0e6090bb
Known quadratic behaviors (the OP_IF case is benchmarked above and doesn‘t seem to be quadratic): https://bitslog.com/2017/04/17/new-quadratic-delays-in-bitcoin-scripts/
Mark Lundeberg:
Quadratic sighash remains in Segwitv0/BCH/BSV digest algorithms
https://gist.github.com/markblundeberg/c2c88d25d5f34213830e48d459cbfb44
More information on past and future Bitcoin Cash Developer meetings at theFutureofBitcoin.Cash
Tips and donations welcome at: bitcoincash:qrwyeh8r09rgmpcc6adde6l7u0yp9c7wxcc65qck7j
...
https://www.youtube.com/watch?v=XoQ3H5RdSdo
The 17th Bitcoin Cash Development video meeting for 2019 took place on December 5 at 15:00 UTC.
Participants:
Antony Zegers - Bitcoin ABC
Jason B. Cox - Bitcoin ABC
Chris Pacia - BCHD
Jason Dreyzehner - BitAuth
Josh Green - Bitcoin Verde
Matias Garcia - BitPay
Fernando Pelliccioni
Tobias Ruck - Be.Cash
Andrea Suisani - Bitcoin Unlimited
Host: David R. Allen
Agenda:
1. Upgrade debrief
2. Next upgrade preparedness
3. Discussion of potential items.
- SigChecks
- Script system
4. BCH specification Update
References and links discussed during the meeting:
Documentation for CashScript, which is an SDK for compiling Script programs.
https://developer.bitcoin.com/cashscript/docs/getting-started
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2019-September/017306.html
Ideas welcome: https://www.thefutureofbitcoin.cash
...
https://www.youtube.com/watch?v=B2Pssuv6ptM
Bitcoin Cash Difficulty Adjustment Algorithm Development Meeting;
discussing large Bitcoin Cash block confirmation time variance, possible solutions and work being done
July 16th 2020, 15:00 UTC
Donations in support of these meetings and videos are welcome at :
bitcoincash:qrwyeh8r09rgmpcc6adde6l7u0yp9c7wxcc65qck7j
More information about these meetings on https://www.thefutureofbitcoin.cash
Participants:
Amaury Sechet
Jonathan Toomim
Jacob Eliosoff
George Bissias
Chris Pacia
Scott Roberts
Jason Dreyzehner
Antony Zegers
Karol Trzeszczkowski
Freetrader
Josh Ellithorpe
Host:
David R. Allen
Agenda:
1. Welcome - Chair
Opening statement
2. Reason for the meeting
3. Format for the meeting - Acceptance of the Agenda
4. Rules of engagement - See Work Group Code of Conduct https://github.com/bitcoincashorg/bitcoincash.org/blob/master/workgroups/code-of-conduct.md
5. Introductions: (1 min each) Name, background, current work and interest in the subject.
6. Primary Discussion Items:
- The problem - Why is a change needed
- What needs to change and what needs to remain the same
- Possible solutions
- Cost to the ecosystem of doing the change or not doing the change
- Conclusions
7. Calls to Action:
8. Next meeting?
Adjournment
Links and information shared during or after the meeting:
DAA research and proposal by Jonathan Toomim : https://read.cash/@jtoomim/bch-upgrade-proposal-use-asert-as-the-new-daa-1d875696
Zawy's DAA research: https://github.com/zawy12/difficulty-algorithms
Bonded Mining: Difficulty Adjustment by Miner Commitment paper by George Bissias, David Thibodeau & Brian N. Levine: https://arxiv.org/abs/1907.00302
Imaginary Username's research on the effect of a DAA change on ecosystem software: https://bitcoincashresearch.org/t/difficulty-adjustment-algorithm-daa-change-affected-software/120
DAA work group link: https://t.me/joinchat/HCYr506_9oNIjmWgXh_kyA