@DavidRAllen 23 June 2020

BCH Open-Source Pulse: Vol #12

This is the twelfth edition of the BCH Pulse developer newsletter. Existing projects have been updated. Information can be sent to the new email bch.dev.mail@gmail.com Thanks! Here is some of the work that is being built on BCH by the Developers. This does not take into account work done by developers who chose to remain anonymous. Chris Pacia - BCHD https://github.com/gcash/bchd https://github.com/gcash/bchd **Recently Completed:** Released 0.16.3 which had a fix to a standardness bug **Currently working on:** Specing out the SLP integration, expecting to have a document available for review and comment this month. **Future work:** SLP integration Josh Ellithorpe - BCHD https://github.com/gcash/bchd **Recently Completed:** BCHD 0.16.3 **Currently working on:** SLP JS library Minor updates to explore.cash Jonathan Silverblood - Cashual Wallet & Flipstarter https://github.com/monsterbitar **Currently working on:** Specification and implementation of a Price Oracle for use in BCH smart contracts, and smart contract risk trading to mitigate volatility. Jason Cox - Bitcoin ABC https://github.com/Bitcoin-ABC/bitcoin-abc **Recently Completed:** Helped businesses prepare for the May upgrade, which activated smoothly. Various improvements including: improved node stability, improved performance, and bug fixes. Faster and more stable tests running on all changes, before and after landing on master. **Currently working on:** Infrastructure to improve iteration speed team-wide. Faster deployments for website and testing infrastructure. **Future work:** Develop code-gen for repetitive tasks. Continue effort on de-globalizing internal node state. **Wants help with:** Backports: https://github.com/Bitcoin-ABC/bitcoin-abc/blob/master/doc/backporting.md Antony Zegers - Bitcoin ABC https://github.com/Bitcoin-ABC/bitcoin-abc **Currently working on:** Reviewing DAA work to define requirements, design goals, and evaluate different proposed improved DAAs for BCH. **Amaury Séchet - Bitcoin ABC** https://github.com/Bitcoin-ABC/bitcoin-abc **Recently Completed:** Cleaned up upgrade code related to Transaction Chain Limit Cleaned up upgrade code related to Sigchecks. Other miscellaneous code cleanups. **Currently working on:** Porting PSBT (Partially Signed Bitcoin Transaction) to Bitcoin ABC, and adapting it for BCH transaction. Avalanche - fixing tests and preparing code for block-level avalanche. BIP-157 - work to bring BIP-157 block indexing code to Bitcoin ABC. This enables Neutrino wallet support. **Future work:** Continue with current work, and deal with new stuff that comes up. **Wants help with:** DAA work - defining a problem statement and requirements. Andrea Suisani - Bitcoin Unlimited https://github.com/BitcoinUnlimited/BitcoinUnlimited **Recently Completed:** Extend a bunch of RPC calls to work also with to block height not just block hash (BCHN/BU), improved github.com/sickpig/bch-rpc-exploer (see explorer.bitcoin.com) **Currently working on:** Electrum server testing (eletrs, fulcrum), BU develpoment **Wants help with:** "everything I''m currently working on 😄" George Bissias - Bitcoin Unlimited https://github.com/BitcoinUnlimited/BitcoinUnlimited **Recently completed:** Graphene v2.2 Updated Graphene spec **Currently working on:** Bobtail prototype (BUIP 131) **Future work:** Bobtail prototype Tom Zander - Flowee https://gitlab.com/FloweeTheHub **Recently completed:** Provide a 'txid monitor' service. Allowing clients to register a txid they expect and get a push notification on first-seen or mining. (Flowee the Hub) UTXO-DB speedups because of better algorithms for compression aiming at memory-locality. (Flowee the Hub) Introduced a new C++ lib 'p2pnet' (Flowee Pay) Provided a simple, functional, desktop wallet that can sync existing private keys (Flowee Pay) Provided 'sending' feature to actually transfer money. (Flowee Pay) Researched and implemented a UTXO system that aims to have enough outputs to avoid unconfirmed chains. (Flowee Pay) **Currently working on:** Ongoing maintenance work, including backports and working with newer libraries. (Flowee the Hub) **Future work:** Import private seeds. Mobile skin (QML) **Wants help with:** Import private seeds. (does anyone have a C++ lib?) Mobile skin (QML) Joshua Green - Bitcoin Verde https://github.com/softwareverde/bitcoin-verde **Currently working on:** "Bitcoin Verde 2.0" which is an overhaul to the storage system of Bitcoin Verde. Syncing progress down from 1+ week to 24 hours Storage requirements down from 750GB to 250+ GB. Currently in beta, QA soon. **Future work:** Mining Validation Service Bitcoin Verde mining rules hardening **Freetrader - BCHN** https://gitlab.com/bitcoin-cash-node **Recently completed:** 2nd and 3rd releases of Bitcoin Cash Node (v0.21.1 and v0.21.2) Setting up bookkeeping, scheduling, backporting processes for BCHN **Currently working on:** Managing the BCHN development & maintenance work Specification of automatic finalization & block parking/unparking Looking at restructuring BCHN test environment to improve verification capabilities **Future work:** Improving simulation capabilities for evaluation of BCH changes **Wants help with:** BCHN improvement dev, testing, review (Merge Requests, bug reports) - join me on BCHN Slack via the invite link available on https://bitcoincashnode.org Feedback about CPFP usage: https://gitlab.com/bitcoin-cash-node/bchn-public-consultation-system/-/blob/master/output/campaigns/202006_BCHN-PCS_CPFP_survey/202006_BCHN-PCS_CPFP_survey-en.md Im_uname - Electron Cash, Flipstarter, BCHN https://github.com/Electron-Cash **Recently completed:** BCHN Flipstarter campaign (and helped with others) **Currently working on:** Electron-Cash Flipstarter campaign Sketching new possible AnyHedge contracts **Wants help with:** Electron-Cash BCHN mtrycz - BCHN https://gitlab.com/bitcoin-cash-node **Recently completed:** A Beta Release of corgi , a distributed framework for testing emergent properties of a bitcoin network **https://gitlab.com/mtrycz/corgi** **Currently working on:** Polishing corgi for public release, adding test-cases **Future work:** I'd like to try to formalize a BCIP process (with on-chain proposals via memo/member) **Wants help with:** Defining test-cases for corgi, help with gathering BCIPs and implementing the system Calin Culianu - Electron Cash https://github.com/Electron-Cash **Recently completed:** BCHN performance and other fixes and improvements Electron Cash macOS packaging and general look & feel improvements (macOS only) **Currently working on:** BCHN codebase Fulcrum minor fixups A better mining pool James Cramer - SLPDB / Electron Cash SLP https://github.com/simpleledger/Electron-Cash-SLP **Recently Completed:** Initial specifications for SLP Rewards and Staking protocols **Currently Working on:** Initial specifications for SLP Rewards and Staking protocolse **Future Work** SLP Rewards Spec/Implementation Paul Oldridge - PayButton https://github.com/PayButton/paybutton **Currently working on:** Implementing project overhaul w/ Preact. **Future work:** Expanding PayButton to cover features outlined on GitHub (**https://github.com/PayButton/paybutton**). Fernando Pelliccioni - Knuth node https://github.com/k-nuth/kth **Recently Completed:** Improved unit and integration tests. **Currently working on:** Crowdfunding platform for Knuth. **Future work:** Implementing mining-compliance test batteries. Chris Troutner - FullStack.cash https://github.com/Permissionless-Software-Foundation **Recently Completed:** **FullStack.cash** has had several updates recently. ipfs.fullstack.cash allows anyone to pay BCH to host files on the IPFS network. bch-js npm library has built in functions to support IPFS uploads. http://fullstack.cash/ http://ipfs.fullstack.cash/ minimal-bch-wallet (https://www.npmjs.com/package/minimal-bch-wallet) npm library released, forked from Honest.Cash's web wallet. This will be the wallet engine used as wallet.fullstack.cash is developed. http://wallet.fullstack.cash/ **UncensorablePublishing.com** got a new home page. This leverages the BCH blockchain for coordination and publishes content over the clear web, Tor, and IPFS. http://uncensorablepublishing.com/ **Current Work:** wallet.fullstack.cash is a web-based wallet that will use the uncensorable publishing techniques at UncensorablePublishing.com. It's not functional yet, but we hope to have basic functionality in place in the next couple weeks. http://wallet.fullstack.cash/ http://uncensorablepublishing.com/ **Future Work:** minimal-slp-wallet (https://www.npmjs.com/package/minimal-slp-wallet) is not yet functional. It will be a clone of minimal-bch-wallet, but will support SLP tokens and NFTs. **Want help with:** I'd love to see more people start using bch-js (https://www.npmjs.com/package/@chris.troutner/bch-js).  I'd love help with integrating Bitcoin.com's rest.bitcoin.com into its Ninsight class: https://github.com/christroutner/bch-js/blob/master/src/ninsight.js http://bitcoin.com/ http://rest.bitcoin.com/ I'll provide free access to the FullStack.cash REST API for anyone who wants to help with development. http://fullstack.cash/ Karol Trzeszczkowski - Plugins https://github.com/KarolTrzeszczkowski **Recently Completed:** BitcoinBileto paper wallet manager: https://github.com/KarolTrzeszczkowski/Bitcoin-Bileto Mecenas executor bot - full automation of Mecenas recurring payment service. **Currently working on:** DAA improvement research, Mecenas automation integration in Mecenas plugin **Future work:** DAA improvement research **Wants help with:** DAA improvement research Shammah Chancellor - Stamp https://github.com/cashweb/stamp **Recently Completed:** Lots of front end improvements **Currently working on:** Backend relay system API Writing specifications **Future work:** Continued development on Stamp **Wants help with:** Funding Participation in developing the wallet Tendo Pein - Spedn https://bitbucket.org/o-studio/spedn/src/develop/ **Recently Completed:** Spedn 0.3 released with support for May hardfork and improved covenants functionality **Currently working on:** Pattern matching and automatic optimization **Future work:** Spedn IDE **Wants help with:** Code and docs review Tobias Ruck https://github.com/EyeOfPython **Recently Completed:** OP_REVERSEBYTES implementation **Currently working on:** Crowdfunding campaign Mitra **Future work:** Backend Wallet Card Mitra Playground **Wants help with:** Mitra (testing, feedback once released) **https://be.cash** exposure **Rosco Kalis - CashScript** https://github.com/rkalis **Recently Completed:** Released CashScript v0.4.0 and v0.4.1. Changes include: OP_REVERSEBYTES support Bitwise operators Compiler optimisations Some syntax changes and bug fixes Completely revamped fluent Transaction Builder API for the JavaScript SDK Created new website for CashScript documentation (https://cashscript.org/) **Currently working on:** Building out automated testing for the AnyHedge smart contracts (using Jason Dreyzehner's bitcoin-ts library) **Future work:** Generalising the automated testing setup and making it easily available to use for testing other BCH smart contracts **Wants help with:** Feedback on the CashScript website (does the documentation structure make sense, are you missing any information, etc) Feedback on CashScript (try it out for some stuff, report bugs, etc) This is the information that was submitted for this edition. We know there are many more developers who are currently developing for Bitcoin Cash and we encourage them to updates for the next edition. ***The co-ordinators of this newsletter invite any developer (working on BCH) who isn’t featured in this issue to self report / submit what you are working on for the next issue of BCH Open-Source Pulse.*** **We’re looking for:** Recently completed Current work Future work (stuff you’d like to get to after you’re done with your current work) Anything you’d like some help with Please email us at bch.dev.mail@gmail.com