TL;DR: Crypto Dev Digest (CDD) documents cryptocurrency development, highlighting the projects and persons working under the hood. This packed digest features Charlie Lee, known online as SatoshiLite, talking about mimblewimble in relation to Litecoin. Bitcoin Unlimited explores DAA and double-spend thought experiments, and gets some pushback. Crescent Cash wallet is upgrading like mad, as is Badger wallet, and Bitcoin Cash developers are encouraged to join a like-minded Discord.

SatoshiLite Talks Mimblewimble

The creator of Litecoin, Charlie Lee, is coming off a pretty triumphant week for his project. Dogged by concerns of funding and lack of development, the team scraped up enough to host a Las Vegas soiree complete with a keynote by two-time US presidential candidate Ron Paul.

With marketing hype and headline juice, however, comes expectations. And with hashrate falling and an ecosystem-wide perception of Litecoin effectively not being developed, Lee appears to be at least making noise about a really important topic to Bitcoiners, privacy.

@SatoshiLite Thanks for being on my show. It was a pleasure having you on to speak about the importance of financial privacy and how #Mimblewimble will help achieve fungibility for #Litecoin $GRINhttps://t.co/TyrpIffGcd — Grin Talk (@TalkGrin) November 2, 2019

Lee must be careful with pushing privacy, as coins such as Monero and Zcash have been delisted by exchanges out of fear regulators will crackdown due to less tracking ability. Many once mistakenly believed Bitcoin itself was anonymous, lacking understanding of what constitutes a public blockchain. Companies such as Chainalysis soon disabused most of that notion, with Bitcoin in many ways being far easier to track transactions than even fiat.

Litecoin is reportedly exploring fungibility, eschewing the dreaded privacy word for now, in an effort to create same-same in sending and receiving coins — the way a $20 note would be indistinguishable from any other $20 note. Lee claimed his team was looking into so-called mimblewimble technology for that very purpose, and might be headed toward side-chain development.

BU Proposes a Double-Spend Experiment

1/3.

Bitcoin Unlimited’s high-level approach to give #BitcoinCash businesses the benefit of up to 500 long-chain txns:

Wait until enough non-mining nodes are using BU 1.7.x

Run a double-spend experiment for long-chained txns. Post the results. — BitcoinUnlimited (@BitcoinUnlimit) October 27, 2019

Tibitcoin.cash and Badger Wallet Updates

The backend has been reworked a bit to better support /user/ and /tip/ URLs! The username after /user/ and /tip/ is no longer case sensitive. So, for example https://t.co/t1d39o2BYv will work the same as https://t.co/2KScsuGlku — tipbitcoin.cash (@tipbitcoincash) October 31, 2019

This is awesome news!@BadgerWallet Mobile is the first mobile wallet to support Simple Ledger Payment Protocol ("BIP-70 for SLP tokens"). Also now supports BIP70 for BCH (and is super fast in so doing as well)https://t.co/kBsdIXoEE4 — Ⓥin Ⓐrmani (@vinarmani) November 1, 2019

A Proper Native Token on BCH

After working with SLP for a while I feel there is a big need for a proper native token on BCH. SLP has proved there is a big demand for tokens. Now we need a proper POW consensus protocol for them. — Emil Oldenburg (@emilolden) October 30, 2019

Devs Who Need a Legacy Insight API After Nov. Upgrade

#bitcoincash developers who need to run a legacy Insight API after this upcoming fork can use my updated Docker container. Thank you https://t.co/dLQncKtm1S for paying for this!https://t.co/7eOcrdgJLP https://t.co/aCX3KDAAAp — Chris Troutner (@christroutner) October 30, 2019

Difficulty Adjustment Algorithm, Block Times Debate

I made a difficulty adjustment algorithm that doesn't reference any past block times at all. It can handle hashrate changes of a factor of millions, by completely retargeting every block based only on its own timestamp offset. #bitcoin #powhttps://t.co/wieV3dWgoU — Tom Harding (@dgenr818) October 31, 2019

The recent oscillations we've seen in the BCH hash rate were predicted ahead of time by @dgenr818, who advised against BCH's current difficulty adjustment algorithm (DAA). Tom just published a timely and well-written paper exploring a new class of DAAs:https://t.co/luQdreiLkD — Peter R. Rizun (@PeterRizun) October 31, 2019

Some thoughts about a recently published (?) novel difficulty adjustment algorithm https://t.co/Rk14949myW — imaginary_username (@im_uname) November 1, 2019

Small Demo App

I created a small demo app to show how to read, write and delete key/value pairs to/from RocksDB in #Rustlang.https://t.co/Bw5O8tFaKq — Gabriel Cardona (@cgcardona) November 1, 2019

CashDev Discord

Looking to build on the #BitcoinCash blockchain? Connect with over 700 others, developing and creating on the #BCH network.https://t.co/h1T3sug6HU — CryptoKid (@thecryptokidd) November 2, 2019

Crescent Cash Wallet Updates Coming Fast, Furious

Next Crescent Cash update will feature smaller send/receive icons, and @SatoshiDICE transactions will be marked within the transaction history list. 🙂 pic.twitter.com/RLkmjD1DdJ — m (@pokkst) November 2, 2019

v1.8.7 is being rolled out to the Play Store!

This update fixes an issue with sending SLP tokens, and introduces icons for specific transactions in your wallet. Now sent SLP txs, CashShuffle txs, and SatoshiDICE txs display a respective icon in the transaction history list! — Crescent Cash (@crescentcash) November 2, 2019

While Crescent Cash doesn't have @CashShuffle support directly, if you shuffle the coins in your wallet using Electron Cash, then Crescent Cash will mark any CashShuffle transactions with this icon in your tx history list. 🙂 pic.twitter.com/Hdxv8NVnVX — m (@pokkst) November 2, 2019

v1.9.0 of Crescent Cash is almost complete! "The Utility Update":

– View list of all issued keys in wallet

– Sweep paper wallets

– Sign message with any issued key

– Verify other's signatures

– Set custom node for wallet

– Import private keys — Crescent Cash (@crescentcash) November 4, 2019

Coming in v1.9.0 of Crescent Cash: Custom OP_RETURN messages for both Android and Desktop! If I'm not mistaken, then Crescent Cash will be the first mobile wallet to feature the option to add custom OP_RETURN messages! pic.twitter.com/jLYbY9tbN8 — m (@pokkst) November 4, 2019

Tobias Ruck’s Innovative Thinking

Nimbus by @TobiasRuck is a hugely important proposal which I hope Bitcoin Cash takes seriously. It's the type of innovative thinking which IMO BCH must embrace if it wants to remain competitive. Watch this presentation now: https://t.co/4DvTAjqSxV https://t.co/9EVyu3zAql — Gabriel Cardona (@cgcardona) November 2, 2019

Bitcoin ABC 0.20.5 Released

Bitcoin ABC 0.20.5 has been released! This release includes new `loadwallet` and `unloadwallet` RPC commands, bug fixes, and more. Download it here: https://t.co/ZWVYrXOA6f #bitcoincash #bch #bitcoin — Bitcoin ABC (@Bitcoin_ABC) October 30, 2019

CoinText Throws Shade at Calibra

Our new project solved the problem Facebook's @calibra is trying to solve without billions of dollars or Congressional hearings. It's a major breakthrough… More soon… — CoinText (@CoinText) November 2, 2019

Let Stuck in Segwit be a Thing of the Past

Almost two years after the debut of Cashaddr, sending to 3xxx legacy p2sh addresses is finally disabled in Electron-Cash (with option to enable in preferences). Other wallets should follow suit, let "stuck in segwit halp" be a thing of the past! 🚀🚀🚀https://t.co/8gmib0tH69 — imaginary_username (@im_uname) November 4, 2019

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DISCLOSURE: The author holds cryptocurrency as part of his financial portfolio, including BCH.