BCH developer conversations have been taking place ahead of the upcoming May 2019 upgrade. In their latest video meeting, devs agreed that they need to know how much BCH is locked up in p2sh segwit addresses. It was also agreed that Andrea Suisani will take charge of the byte transaction size limit and Mark Lundeberg will review Amaury Sechet’s code on Schnorr signatures. Lastly, Jason Cox extended an open invitation for the qualified to assist with the development and review of BCH code.
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Meeting of the Minds
A BCH developer meeting was held recently to get the ball rolling for the upcoming May 2019 upgrade. The meeting was moderated by David R Allen and consisted of lead developer of Bitcoin ABC Amaury Sechet, Bitcoin Unlimited developer Andrea Suisani, Bitcoin ABC developer Antony Zegers, Bitcoin ABC developer Jason B. Cox, Openbazaar developer Chris Pacia, CTO of Bitcoin.com Emil Oldenburg, and Bitcoin Cash developer Mark Lundeberg.
Agenda One: BIP 62, Attempts to Fix Third Party Malleability
After introductions, the meeting opened with discussions on BIP 62. Zegers pointed out that some BCH users are unable to recover their funds because they are sending BCH to BTC segwit P2SH addresses. Then, Cox asked if it was possible to identify the extent of this problem. In response, Oldenburg proposed indexing all segwit addresses and then checking the UTXOs, an extremely time-consuming process.
Alternatively, Lunderberg proposed a way to fix third party malleability by applying the clean stack rule to Pay-to-Public-Key-Hash and Pay-to-Script-Hash multisig. That way every other script would have to manually check itself using OP_DEPTH. However, he noted that his solution would require another hard fork on top of the May 2019 hard fork.
