At Railway we take security very seriously. Please read this urgent advisory.

If you don't understand why crypto is tanking.... 1. OpenAI published 722 solved outstanding math problems. 2. 0 of them mentioned cryptography at all. 3. The report appears to have redacted sections. In other words, some forms of encryption have been quietly broken.

Today I call upon the blockchain industry to calmly begin planning for "bunker mode". My personal recommendation is to set in motion a controlled mass migration of assets to fresh addresses, i.e. addresses whose pubkeys remain hidden behind a hash. Holders, starting with large and sophisticated ones, should consider moving the bulk of their funds to addresses that have never signed a transaction. And when they do sign one, they should also move remaining funds to a new address (possibly generated from the same seed phrase). Don't rush. While I believe there is cause for action a rushed migration would do more harm than good. Don't panic either. Moving assets to protected addresses is a simple, preventative step which does not require new cryptography or new wallets. IMO it is now reasonable to brace for the possibility that ECDSA breaks before qday, in the worst case in months not years. By "break" I mean fast private key recovery (e.g. in one week) on available hardware (e.g. a large GPU cluster). Recent days have been humbling for human mathematical intuition. Long-held, unquestioned hypotheses have fallen. This includes the n log(n) bound for integer multiplication and the 3SUM conjecture. In hindsight, May's unexpected disproof of the Erdős unit distance conjecture was our warning shot. Yesterday's OpenAI drop made it clear that mathematical superintelligence is upon us. They say there are weeks where decades happen. We are about to live through weeks where centuries of mathematical progress happen. Could our magic 64-byte ECDSA signatures be too good to be true? Was it just security through obscurity all this time? Elliptic curves feel especially vulnerable to superintelligence. Curves carry rich structure, with room for fancy tricks like Schoof, Frobenius, pairings. (By contrast, hashes are designed to minimise algebraic structure.) Separately, as Ewin Tang can attest, an efficient quantum algorithm sometimes foreshadows an efficient classical one. We should be open to the possibility of a classical counterpart to Shor that breaks elliptic curves and RSA at once. Also noteworthy is the striking under-representation of cryptographic breakthroughs among the 722 mathematical results OpenAI published. I've witnessed first-hand the US government censoring academic quantum cryptanalysis results. Backroom interventionism is my base case. I urge large, sophisticated actors to lead by example. Project11's "risq list" (bitcoin-risq-list.projecteleven[.]com) is a great tracker of exposed BTC pubkeys. Binance, Bitbank, Robinhood, Bitfinex, and Tether have an opportunity to harden their cold storage. Next month I'll address institutions in London in a live Q&A (forum.ethereuminstitutional[.]org/london-2026). Again, please do not rush. Wallets holding under 50 BTC enjoy partial cover from "Satoshi's shield", i.e. his 20K exposed addresses that hold 50 BTC each. Load-bearing signers like oracles and L2 security councils should consider rotating ECDSA pubkeys with every signed message and/or multi-signing with a hash-based schemes like SPHINCS. Exiting bunker mode safely will require post-AI cryptography. My inclination is to go all-in on hash-based cryptography and avoid structured mathematical assumptions entirely, whether from curves, lattices, or isogenies. A single battle-tested hash (e.g. from the SHA or BLAKE families) yields plausible post-AI security. The Ethereum roadmap on strawmap[.]org fully embraces hash-based cryptography with end-to-end formal verification as a response to the quantum threat. Those timelines must now be revisited and accelerated in light of mathematical superintelligence. I'll be pushing for maximum defensive acceleration.

Proof of Presence is much bigger than tokenized stocks on the map. And there are 3 features live in the app right now that most of you haven’t explored yet: 1) Store Receipts Buy something from one of the 40 supported brands: Apple, Tesla, Starbucks, Nike, IKEA, Zara, McDonald’s and others. Scan your receipt in the app and it becomes a brand-specific token. A proof of purchase on the blockchain forever. e.g. Apple receipt → Apple branded token. McDonald's receipt → McDonald's branded token. 2) In-store stickers Physical stores can have a TouchGrass QR sticker at the checkout. Scan it, leave an honest review about the place and you unlock a boost for the day: → One extra catch or a shorter cooldown for the next catch. 3) Catching drops videos Record your catch, post it on X tagging @TouchGrassRWA, then paste the link back into the app. That catch pays 3x, with the extra reward capped at $25. Limited to once a day. None of this is on a roadmap. It's live on the app now... But here's the part that matters. A store receipt, a service/product review, a spontaneous video or a reward you collected: they are all different ways of proving that a real person interacted with a real place. That’s what Proof of Presence is actually about. Much more valuable than tokenized stocks drops here and there… Stocks were simply the first reward layer we introduced. touchgrass.family discord.gg/touchgrassrwa

5 shops are paying for a drop at their door right now. A liquor store in Elmont, NY put $10 of AMZN on its door with the line "Your next shot is on Pike's." A skincare studio in Tarpon Springs, Florida. One in Orlando. A village store in Shandong, China. Not brands. Not partners. Shops. Real ones, run by someone who found the site and paid. How it works: 🏪 Pick your door on the map 📈 Pick the stock (AMZN, AAPL, TSLA, GME...) 💵 Put $10 to $2,000 on it, in ETH on Robinhood Chain or from Solana 🌱 Hold 10,000 $GRASS in the sponsor wallet Then walkers come. They stand in front of your shop, they take a photo of it, they catch a fragment of the stock you picked, and every one of those visits is on-chain. A pin costs less than a boosted post, and people physically show up. That is the whole point of Proof of Presence: footfall you can verify. Name the one shop in your town that should do this. Tag them if you dare. touchgrass.family/sponsor discord.gg/touchgrassrwa

a few thoughts on うさぎ (Suica Rabbit) JR East is replacing the iconic Suica penguin after 25 years and one of the three official candidates is this weird purple rabbit. Voting runs until Sep 23, and the winner will become Suica’s new mascot from April 2027. normally that would just be a corporate mascot vote. but the internet chose chaos. the purple rabbit has already started breaking out of the campaign itself and turning into a meme across Japanese social media. The Japan Times literally highlighted how it’s appearing in Backrooms edits and other viral meme formats. that’s what makes this interesting. the best memes aren’t manufactured by crypto. crypto finds something people are already obsessed with and financializes the attention. and right now the rabbit has: official JR East exposure a nationwide public vote Suica’s 25th anniversary behind it real Japanese meme momentum months of potential catalysts ahead the Suica brand itself is massive. The penguin has represented the system since 2001 and was used to build recognition around one of Japan’s most ubiquitous payment and transport products. so if the rabbit keeps becoming the internet favorite, this narrative has way more runway than a normal one-day meme. then look at the chart. initial expansion. big repricing. and instead of completely round-tripping, it’s sitting around ~$5.5m and consolidating. that’s what catches my attention. viral narrative + chart refusing to die. obviously this is still a tiny speculative token and the rabbit isn’t guaranteed to win the official vote. but honestly, it might not even need to. sometimes losing the corporate vote while winning the internet is an even stronger meme. Japan is already turning this thing into a character. crypto is just catching up. @suicarabbitcto is one of those setups where the meme is happening outside CT first. that’s exactly what I like.

Oh wow. Head of research at Bitwise $GME and robinhood:0x16391c40e85fb2246a2c8c17bfa2594c5d3ef84b

Boots on the ground research by @AsadIshmael. Touching grass and $GME in the heart of NYC on Robinhood Chain.