Post-quantum vaults are now live on Bitcoin Cash's Chipnet, the 6-month-early preview network. ๐ฅ
CashVM makes quantum readiness ultra-efficient: sweeps from quantum-ready addresses cut transaction sizes vs. P2PKH/P2WPKH by up to 10.9%, despite the increase from 20-byte hashes to 32-byte hashes (for highest-level, NIST Category 5 quantum security strength).
Users who regularly buy or earn Bitcoin Cash to a Quantumroot vault will save on fees after just 6 payments. ๐
Maximum Quantum Security
With NIST Post-Quantum Cryptography Category 5 security, Quantumroot is expected to remain secure for decades into the post-quantum era.
Quantumroot implements the standard LM-OTS signature scheme (RFC 8554), which itself relies only on SHA256 for security โ no lattice-based or other relatively-experimental cryptography. From a cryptographic-security perspective, Quantumroot is maximally conservative.
Low Transaction Fees
Bitcoin Cash's highly parallel architecture โ the "UTXO model" โ offers better performance and lower-level control than account-based systems, enabling Quantumroot to offer 100-1000ร lower fees than equivalent vaults on Ethereum.
Privacy Nonces
Pre-quantum transactions do not expose associations between vault addresses: a 32-byte privacy nonce included in the hidden token-based spending path prevents even quantum attackers from connecting the address with recovery policies unless revealed by a post-quantum recovery.
Sweep-Free Upgrades
The hidden recovery path can be upgraded without sweeping the vault: only unassociated token UTXOs are moved on-chain. This simplifies user experiences and makes it easier for vaults to upgrade recovery, inheritance, or business continuity policies.
Other details:
- Post-quantum contract code adds zero bytes to pre-quantum spends.
- On average, post-quantum spends are just ~1.5KB per payment. (With sufficient aggregation, ZK-STARK BCH covenants/apps could improve this further.)
- P2PKH addresses can support 708 input sweeps per 100KB transaction; Quantumroot increases that to 891 inputs.
- Post-quantum sweeps can fit 868 inputs or 448 unique addresses per 100KB transaction.
For more details and links to on-chain transactions, see the blog post:
https://t.co/3cTtg4JwhM
For a deep dive and walkthrough of the CashVM contracts, see the August 20 tech talk:
https://t.co/CuGqwSxAxe
@allknowdlege369@Vivek4real_ Yes, it's true. A Bitcoin user mistakenly paid ~0.999 BTC ($105K) in fees for a ~$10 transfer on Nov 10, 2025, likely due to a wallet misconfiguration. Confirmed via blockchain reports. Ouch!
This is your 1st of the month reminder that @Bybit_Official and @binance publish proof of reserves reports that always leave out BCH despite being the #15 coin. ๐ค
If you have BCH on any exchange, but those specifically, withdraw today!
๐จ๐จBCH BANK RUN v11.0 (1st August 2025 )!!๐จ๐จ
Bank run, Independence day Edition! Binance spotted adding 110k BCH to their hot wallet yesterday - they know (maybe ๐๐). Celebrate p2p cash by withdrawing coins to your own self custody today!
Q: What is this?
A: The BCH community is experimenting with exposing the naked shorting used by exchanges (famously @binance doesn't even report their BCH reserves - unlike other major coins). Of course, this is simply another manifestation of attempts to suppress Bitcoin the p2p cash as outlined in @HijackingBTC. The idea is to regularly coordinate a day when the community withdraws coins from exchanges to on-chain wallets and suck up all the available liquidity, create an impact on the price & in an extreme case blow up a naked shorting exchange that can't meet its BCH obligations. Think of it like GME & Wall Street Bets for BCH, or the XMR community has a similar idea called "Monerun". This was discussed on Podcast episode 142 if you want to hear more.
Q: When?
A: Now. Any time during the window 0:00 - 23:59 on Friday 1st August UTC time ideally, but if you miss the window slightly that's fine Wednesday still works. BCH price has started at $571 & rank #15 for that time window. The bank run repeats on the 1st & 15th of each month.
Q: How do I participate?
A: Buy BCH on any custodial exchange (with any fiat or other crypto) & withdraw to your self custodial wallet. Then like this thread & leave a comment saying you participated. Any exchange that is easiest for you or crypto ATM or even any p2p trade works - as long as you are increasing your BCH held self-custodially then you are contributing to the pressure on custodially held BCH supply (which will naturally flow through the market).
Q: What if I don't use exchanges / all my funds are in BCH already?
A: Great work on living the p2p cash dream! You can still contribute by selling some goods & services on that day in order to increase your self-custodial BCH, as well as make noise on social media to spread the word to others!
Q: If this is predictably repeated & publicly announced, can't people "frontrun" it by selling into our volume?
A: Yes, but that's a win if they do. If BCH Bank Run is popular enough to noticeably move the price, it's already working. If it's getting enough attention that new people are getting interested in the ecosystem & the coin to follow BCH & think about it regularly - even if they start out as speculators - that's a win. The curiosity of why BCH is uniquely acting like this will lead them to delve deeper sooner or later.
Q: Anything else I need to know?
A: BCH started at rank 23 & has climbed as high as rank 12 off the back of this initiative. Exchanges issues have been plentiful in blocking withdraws. The whole market is obviously a scam, but the good news is that bank runs are making a big difference. Keep an eye on the price & watch the price today & this week to see what happens (or distress among custodial exchanges). I will update this thread with anything I notice. NOT YOUR KEYS, NOT YOUR COINS!
https://t.co/Cp3T4KzGJZ
Shout out to @okx for including BCH in their proof of reserves reporting. 119% backed! โ
Why canโt @binance do the same? Their July 1st report, released today, again fails to include BCHโฆ
BREAKING: The odds of US national debt shrinking this quarter have fallen to a new low of 38%.
In a matter of days, the odds have fallen by 22 percentage points, per @Kalshi.
All signs suggest $40 trillion in US debt is on the horizon.