research
pmv3
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research
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AnyHedge is UTXO DeFi Derivatives Contract Template for Bitcoin Cash and I Scraped On-chain Data for Total Settled Volume
It is non-custodian betting on price of supported assets paired against BCH, both parties put their money into the contract's pot and later the contract parses an oracle message and calculates how much they can take out. Made possible with Introspection opcodes and int64 upgrades to Bitcoin-tech Script VM, which activated in May '22 on Bitcoin Cash blockchain.
- What is the technological case for BCH?
- Is it there a continuation to the book “Mastering Bitcoin” but that explains the changes in BCH?
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BCH May 15, upgrade, what benefits does it bring?
I dug around a bit and it seems to be this one: CHIP-2021-02-Bigger-Script-Integers.
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What are your biggest criticisms towards the Lightning Network?
native introspection
- BCH Unlimited 1.10.0 now out. Let’s get ready for the May upgrade!
- I was hesitant to trust my BCH on the smartBCH chain but after a few days I'm sold! It is ALL the benefits of ETH's smart contracts and ALL the benefits of Bitcoin in one! Just one question...
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Introducing Unforgeable Groups for Bitcoin Cash - Using Groups as Owners
The latest "Group" proposal (v4.2) is more than just "tokenization". It got simpler and more powerful at the same time. It now enables generic BCH output groups that can be used to create persistent Script covenant contracts that can prove their genuineness. This is something that current contracts cannot do, even with the new Introspection opcodes. Group would make it possible because the groupID is a commitment to the whole genesis transaction, but this is not a post about that.
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Coming soon to Pokket.cash: SmartBCH support!
Will you soon shut up about BCH being shit against "superior chains" when I point you to the CHIPs such as Native Introspection Opcodes, Bigger Script Integers which allows better smart contract functionality coming in 2022, and PMv3 and Group Tokens which allow better token and transaction formats that are coming in 2023?
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Introspection opcodes are so cool, here's a teaser
You can't, because it requires a sibling output (same prevout txid as the contract, but index 1 instead of 0) to be spent alongside it and it verifies it using introspection opcodes that will be available in May. Only the owner of the sibling can spend the contract.
pmv3
- Compressed induction proofs
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Coming soon to Pokket.cash: SmartBCH support!
Will you soon shut up about BCH being shit against "superior chains" when I point you to the CHIPs such as Native Introspection Opcodes, Bigger Script Integers which allows better smart contract functionality coming in 2022, and PMv3 and Group Tokens which allow better token and transaction formats that are coming in 2023?
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What happened to "BSV is law-abiding blockchain and an honest system"?
BSV has no way of storing state or doing anything close to https://github.com/bitjson/pmv3. I'm curious as to what level of fuckery and bloat they're using this time.
- SLP Observation: User Experience
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CHIP: Ranged Script Numbers (RSN) – a TX integer format which simplifies contracts, reduces transaction sizes, and enables future upgrades
For variable number ranges, all parsing can safely be accomplished using a single 11-byte macro, rather than the minimum 29-byte macro required of VarInt in most cases. (Note, the safe, fully-equivalent VarInt macro is 53-bytes.) This simplification is notable enough to enable use cases which would otherwise be inhibited by parsing constructions causing contracts to exceed VM limits.
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Did I summarize the PMv3 transaction proposal correctly?
proposal: CHIP-2021-01-PMv3: Version 3 Transaction Format
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[AMA] I'm Jason Dreyzehner, author of PMv3 – a v3 TX format enabling prediction markets and other decentralized applications on Bitcoin Cash. Ask Me Anything!
One nice thing about PMv3 is that the "solution space" is surprisingly limited. Initially it might seem like there are many ways to accomplish the two big goals of PMv3 ("fixed-size inductive proofs" and "VM integer compatibility"), but if you dig deep on any particular element, of the 2 of 3 possible solutions, there's a clear "best choice". (I've tried to document everything in the Rationale section of the spec.) There's probably only one design decision I'm less sure about (the RSN format), but only because the analysis to (dis)prove it is taking me a long time. 😅 (Working on some open source tooling.)
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Where is BSV able to run Ethereum smart contracts? Does BSV have an AMM like Uni/Sushi? Does it have decentralized lending like Compound? Decentralized prediction markets like Augur? Does it have ERC20 tokens? What is an example of something BSV can do that ETH specializes in?
Out of curiosity, what would you think about https://github.com/bitjson/pmv3 as a way to enable Ethereum-like smart contracts using a local state contained inside?
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Miner-validated tokens on BCH are coming. The powers-that-be will try to split the community on this issue. Do not fall for it!
There are many important use cases for which Group Tokens would require PMv3 (an upgrade which would enable Hashed Witnesses and make CashToken contracts possible in "userland").
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Jihan Wu hints at an opportunity for BCH: "NFT requires low gas fee to work."
To enable hashed witnesses I proposed PMv3, a minimal v3 transaction format which enables a lot of other use cases like sidechained prediction markets (PM). Group Tokens also cannot support these use cases without hashed witnesses.
What are some alternatives?
Lightning-Network - List of Lightning Network technical issues, bugs, flaws, and exploits.
cashtokens - A proposal to enable two new primitives on Bitcoin Cash: fungible tokens and non-fungible tokens.
bitcoin-verde - Bitcoin Verde is a Java full-node implementation of the Bitcoin Cash protocol. Fully indexed, Bitcoin Verde is a unique, from the ground-up, implementation. Bitcoin Verde provides a block explorer, development library, and network implementation diversification.
group-tokenization
bitcoin-cash-node
sdk - RUN JavaScript SDK
bch.info - Bitcoin Cash informational website
bitauth-ide - an online IDE for bitcoin (cash) contracts
BCHUnlimited
bitauth-cli - universal identity and message authentication (WIP)
libauth - An ultra-lightweight, zero-dependency TypeScript library for Bitcoin, Bitcoin Cash, and Bitauth applications.