Mathieu Geukens

libertarian p2p cash advocate 🌶✌️
BCH developer & innovator 💚
e/acc 😎

[Mathieu Geukens @GeukensMathieu]

#CashTokens is the #BitcoinCash comeback, join!

[Mathieu Geukens @GeukensMathieu]

@X_DimensionNews @om_patel5 @nikitabier thanks for original link

[Mathieu Geukens @GeukensMathieu]

@jonnygravity haha whoa 🤯

[ParyonUSD @ParyonUSD]

With the heavy downward price action over the course of the past 4 hours with the BCH price dropping as low as 244$, there's been a number of liquidations

loans for a combined total of 6,847 PUSD were liquidated by the stability pool for just short of 30 BCH collateral

[Mathieu Geukens @GeukensMathieu]

@johnsoncodehk nice!! 🙏

[Mathieu Geukens @GeukensMathieu]

@Tee8z @stutxo 😂

[VLAD HOSTS THE BEST PODCAST IN BITCOIN @Vladcostea]

You know, I really respect bcashers for being true remnants

9 years later, even after they had 2 major community splits (BSV and XEC)

even after the lead developer left

even after market has clearly favored small block BTC

while the hashrate is ~1% of Bitcoin’s

they keep going

lots of high profile big blockers dropped their support around 2020 to embrace Ethereum

but there are still devs shipping new features and OP codes that put Bitcoin Core to shame

in spite of having fewer resources.

Never had inflation bugs, the lesser degree of conservativeness didn’t make the dev team sloppy

They even reported the 2018 inflation bug in Bitcoin, didn’t try to exploit it in a time when they could easily become destructive.

Wasabi 2.0 was inspired by Cash Fusion, many of the covenant proposals are iterations of the already available OP_CheckDataSig and the reactivation of OP_CAT.

The big blockers actually did a great job scaling Bitcoin, settling for dynamic 32 MB blocks that can be bigger only if the user pays for it, and ironically setting up much stronger foundations for trust minimized L2s. They can even run a better version of Lightning, with fewer hiccups.

Without any grants from HRF, Jack Dorsey’s companies, MIT, or mainstream financial institutions – which is probably why they were able to ship code instead of trying to find the meaning of the word “consensus”.

Bitcoin Cash did a great job scaling and making Satoshi’s codebase more useful. I wish Core would learn and try to compete instead of “bikeshedding”.

I also wish it wasn’t taboo to look at competing codebases and take the best parts. You know, like actual cypherpunks who don’t need to signal loyalty to a church in order to be taken seriously.

[Mathieu Geukens @GeukensMathieu]

@PortlandHODL @Vladcostea take a look at @CashScriptBCH if you are genuinely interested in high level programming languages for bitcoin script and covenants

[Bitcoin Cash (BCH) @BitcoinCashOG]

CashScript Playground Updated!
Now supports v0.13 + v0.12 (with compiler selector) + full highlighting, autocomplete & hover hints.
Build smarter contracts on #BitcoinCash → https://t.co/w2k3kjX0lk

[Mathieu Geukens @GeukensMathieu]

@BCH_Guru The future is now. Prediction markets on BCH DeFi growth 🤯 2026 is going to be wild

[Mathieu Geukens @GeukensMathieu]

have strong feelings on how @ParyonUSD will grow or not grow? Apparently now you can put your money where your mouth is with the new Guru prediction market on this! 🤯

Very interesting to see them create an event on this, however DYOR!

[BCH Guru @BCH_Guru]

New event on BCH Guru: Will Paryon USD Total Value Locked Exceed 2,000 BCH Before July 1, 2026?

[Mathieu Geukens @GeukensMathieu]

@Lightswarm @BCH_Guru @BeCasherEcu144 the TVL definately took a hit yesterday with the pricecrash and with a wave of PUSD redemptions

but the TVL still sits comfortably above 1.1k BCH

[Bitcoin Cash (BCH) @BitcoinCashOG]

CashScript v0.13.0 is out! 🔥
Major upgrades for #BitcoinCash smart contracts:

🔁 Loops & compound assignment
↔️ Bitwise & arithmetic shifts
📦 P2S support
🧠 Type system improvements
🪙 Change & UTXO gathering utilities
Full thread + release notes 👇
#BCH #CashScript

[Bitcoin Cash (BCH) @BitcoinCashOG]

@CashScriptBCH CashScript levelling up 🚀

[CashScript @CashScriptBCH]

Try it out today!

https://t.co/FvFLzSMxyH

[CashScript @CashScriptBCH]

We've just released a big new update to the CashScript Playground! It now supports v0.13 as well as 0.12 with a compiler selector, and it features full highlighting, autocomplete and hover hints. 🥳

[BHS - BuyHodlSell.com @buyhodlsell]

UTXO Tokens vs ERC tokens?
We are working on a series which explore the future of #BCH and why it's a promising blockchain for the future.

https://t.co/RhnhxFRJ09
Article by @IterateArtist

[Bitcoin Cash (BCH) @BitcoinCashOG]

🧠 Mid-Week Geek Out: UTXO Tokens (CashTokens) vs ERC Tokens
Why the data model underneath tokens matters more than most people realise. Let's go deep on the tradeoffs.
This builds on the excellent comparison series exploring why Bitcoin Cash's approach is worth serious attention
.
1 The Fundamental Split
ERC-20 tokens live in smart contracts. Every transfer is a contract call. The EVM executes code, reads/writes a global balance mapping, and you pay gas for the computation + storage.

CashTokens (BCH's UTXO token standard) are different. Tokens are metadata attached to UTXOs - category ID, amount (fungible), optional NFT capability + commitment field. A transfer is just spending a UTXO and creating new one(s) with updated token data. The protocol itself validates the rules. No EVM-style execution for standard moves.

One is mediated by code. The other is enforced by consensus rules on explicit ownership.

2 Fees & Real-World Economics
This is where it gets practical fast.

CashTokens fees are basically regular BCH fees - tiny, predictable, and scale with data size, not computational complexity. Fractions of a cent to a couple cents, even during "congestion." Micropayments, daily rewards, in-game items, and high-frequency settlements stay economically viable on L1.

ERC-20 on L1 is variable and often painful. Gas spikes hurt. L2s help with cost but add bridging steps, finality delays, liquidity fragmentation, and extra UX surface area.

When your use case involves frequent or small-value movement, the UTXO model removes a major economic barrier.

3 Security & Attack Surface
CashTokens shrink the surface area dramatically for basic token operations:

- Rules are part of consensus (audited once at the protocol level).
- No reentrancy risk on simple transfers - there's no code running between "check" and "effect."
- No per-token deployment, no upgradeable proxies, no infinite approval footguns by default.

ERC-20 has a long, expensive history of contract-specific bugs (reentrancy, integer issues, access control, approval exploits). Even with mature tooling and audits today, every new token contract is a new potential failure point.

The tradeoff: ERC-20 gives you arbitrary logic in exchange for that expanded risk surface. CashTokens keep the base layer minimal and push advanced logic into covenants (more on that in a bit).

4 User Experience & Ownership
This one feels different in practice.

With CashTokens, tokens just appear in any compatible BCH wallet. You send and receive them like regular sats. No manual "add token" step, no separate gas token, no approval transactions for basic sends. Ownership is explicit - you hold the UTXO.

ERC-20 UX is more fragmented: contract addresses, approvals (and the risks that come with them), gas token management, and sometimes multiple transactions.

For mass adoption and everyday use, removing those extra steps matters enormously.

5 NFTs, Flexibility & The Real Magic
CashTokens have native, efficient NFT support with low fees and a powerful commitment field for arbitrary data (metadata, proofs, state hints).

But the deeper story is CashTokens + Covenants.

Covenants let you write scripts that introspect and constrain how a UTXO (and its tokens) can be spent in the future. You can build stateful, constrained logic - DEX logic, vesting, compliance rules, gaming mechanics, etc. - without exposing the full generality (and risk) of an EVM-style environment.

It's a different philosophy: powerful but deliberately constrained, auditable, and efficient.

6 Scaling, Composability & When to Use Which
- Throughput: UTXO model parallelises validation more naturally. BCH's scaling roadmap amplifies this for token-heavy activity on L1.

- Composability: ERC ecosystem wins on mature DeFi Lego and deep liquidity today (especially on L2s).

Best fit:
- CashTokens: Payments, micropayments, gaming economies, loyalty/rewards, high-volume simple transfers, anything where L1 cost and simplicity win.

-ERC-20: Complex financial primitives where maximum expressiveness and existing liquidity matter most.

They don't have to be enemies. Bridges and wrapped assets let value move between models. Specialisation is healthy.

7 The Bigger Picture
The UTXO approach isn't "dumber" or legacy. It's a deliberate design choice that prioritizes explicit ownership, parallel validation, minimal execution for common operations, and extremely low predictable costs on the base layer.

CashTokens bring tokens to Bitcoin's core strengths while adding just enough structure (categories, commitments, covenants) to make real applications possible without reinventing a global state machine for everything.

BCH isn't trying to clone Ethereum. It's extending the UTXO model that made Bitcoin work and applying it to tokens at the protocol level.

What use cases excite you most for this model? Payments? Gaming? Something with covenants?

Drop your thoughts below. Always happy to geek out more. 👇
#BitcoinCash #CashTokens #BCH

[ParyonUSD @ParyonUSD]

Epoch 3 has started in the ParyonUSD contract system!

This means all PUSD stakers have interest payouts ready to claim

[BCH BLISS @bchbliss]

BLISS Bonus Content #1: Rosco's CashScript Workshop!

Learn about programming in BCH with @CashScriptBCH in this masterclass from @RoscoKalis. Recorded on the last day of BLISS, but wasn't broadcast on the livestream.

Tune in and get building!

[Mathieu Geukens @GeukensMathieu]

@XO_bitcoincash love this, great explainer!