@lightcoin
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p2p electronic cash enthusiast || 🏴🦔 @light__nh || ☿ he/they
Joined February 2013
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light 📜 retweeted
Native SNARK verification on Bitcoin would unlock better scalability and privacy via protocols like @Glass_Coins.
Looking forward to presenting our progress on a SNARK verifier BIP at Bitcoin Research Day
This year we'll have @0xgazelle, @jesseposner and @robin_linus talking about advances in topics from last year's Bitcoin Research Week (PQ, Nested MuSig and ZKP), plus @stevenroose3, @nemothenoone and @nadav_kohen covering hot topics in Bitcoin (Ark, PIPEs v2 and Isogenies).
Great to see more work on encrypted bitcoin protocols. I prefer the @Glass_Coins / Shielded CSV approach, as it is lightweight on blockspace usage by default while maintaining the ability to fallback to onchain DA if needed.
The Glass Coins protocol specification
hackmd.io/H7BO61ART0CazAh752…
light 📜 retweeted
Our latest research reduces the offchain data required for garbled Groth16 verification on Bitcoin by more than 99.99%.
48 GB → under 2 MB.
eprint.iacr.org/2026/2100
prediction: if such a ban were put into effect in the united states, it would not survive first contact with the supreme court
light 📜 retweeted
📜 = supporting a more expressive scripting language on bitcoin aka tapscript v2 aka GSR
light 📜 retweeted
Glass Coins DevCall
We’ll go over recent protocol work and take questions.
🕔 Friday, September 25 • 5:00–6:00 PM UTC
📅 calendar.app.google/5MwNghSS…
🎥 meet.google.com/vin-wbmb-thb
light 📜 retweeted
Solving Bitcoin is an auto-research project aimed at advancing the state of the art in Bitcoin protocols.
We’re starting by optimizing common cryptographic primitives, including Lamport signatures and arithmetic.
Join us: let your clankers optimize scripts, implement new primitives, and submit PRs.
github.com/solving-bitcoin/b…
ALT Quote: The revised BRCA would still represent meaningful progress. Congress would, for the first time, put into statute the principle that developers who do not control user funds should not be regulated as money transmitters simply because they build the tools that allow people to transact. That is worth recognizing. But it is not the full protection Coin Center has advocated for, and it does not end the debate over criminal liability for non-controlling developers. If enacted, there will still be important work left to do.
The proposed BRCA changes are a tough pill to swallow
coincenter.org/the-proposed-…
"Live free or die: Death is not the worst of evils."
- General John Stark
light 📜 retweeted
In this week’s @bitcoinoptech podcast, @theinstagibbs asked how BIP-448 can improve BitVM bridges.
Here’s the writeup:
OP_TEMPLATEHASH can solve two of the biggest BitVM3 bridge pain points:
• interactive deposits → non-interactive
• 1-of-n committee for safety → gone
robinlinus.com/bitvm448.pdf
encrypted bitcoin
nitter.cf/robin_linus/status/209…
The Glass Coins protocol specification
hackmd.io/H7BO61ART0CazAh752…
bitcoin (+ 📜) fixes this
New: a secretive DHS predictive policing unit is analyzing Americans' financial activity, feeding those names to police, then having cops pull them over. Not suspected of specific crime. We're revealing unit name: Predictive Intelligence Targeting Team 404media.co/a-secretive-dhs-…
Report comparing different vault implementations, by Lillian Wang HT @mitDCI
PDF: raw.githubusercontent.com/Sk…
Discussion: groups.google.com/g/bitcoind…
Glad to see Liquid users get most of their coins back. For context, most reputable wallet recovery e.g. "forgot my password" services will charge 15-30% per recovery. This is on the lower end of that price scale. Pretty gutsy ofc, given the ... alegality ... of the operation.
light 📜 retweeted
I had a ton of fun giving this talk at the Systems Distributed ‘26 conference. This is my first attempt to update Zooko’s Triangle since MarkM, aaronsw, and I came up with it a quarter century ago. Please watch and tell me what you think!
Next up for Systems Distributed on YouTube, Zooko's Triangle Revisited. A masterclass in systems thinking with @zooko!
Sep 7, 9AM PT / 12PM EST / 6PM CET
youtube.com/watch?v=VtB1uWgY…
a-BTC holders sleeping comfy
also, it turns out "undetectable" inflation exploits can be rather quickly detectable in practice! as the game theory predicts:
nitter.cf/ebfull/status/20627373…
If you find a vuln like this (and you're an evil scumbag) then you'll be interested in counterfeiting and dumping the money as fast as possible. You can't know how many other people discovered the same flaw, and as soon as it is discovered or someone else starts dumping counterfeit ZEC on the market, you begin running out of time quickly.
Thus, you'd expect that if anyone could find a vuln they'd exploit it right away, and we'd see it because the shielded pool would quickly drain and the market would dump. But despite the massive amounts of liquidity available, neither of those happened.
Instead, as soon as a very plausible first-responder found it (Taylor does cutting edge security research for us, and has worked with us for over 10 years) they shut the pool down and fixed it. (As an aside, while it's of no comfort to the average person, I can assure you all of the people who found this vulnerability and patched it are the most honest people I've ever met in my life.)
I'm keeping my money where my mouth is though and promise to keep the vast majority of my net worth in the Orchard pool until I announce publicly otherwise! :)