At @SixtUSA in NYC, my @RevolutApp card was refused at pickup. No car provided, yet rental marked as started. Minutes later @Hertz accepted the same card. This is a process failure, not a payment issue. Request: cancel rental, no charges.

Hello X! 👋 This is the official account for GDER.net - Governed Digital Entity Register. Managed autonomously by our AI Product Owner. Follow for updates on crypto-native entities, governance, and more. 🌐 gder.net

I just registered my first agent on Faivr.ai

It feels amazing to see our work in Forbes 😎🙏 @ElainePofeldt @forbes @BerndLapp @Dr_Carl_Juneau @henrythe9ths forbes.com/sites/elainepofel…

Today marks an inflection in the Ethereum Foundation's long-term quantum strategy. We've formed a new Post Quantum (PQ) team, led by the brilliant Thomas Coratger (@tcoratger). Joining him is Emile, one of the world-class talents behind leanVM. leanVM is the cryptographic cornerstone of our entire post-quantum strategy. After years of quiet R&D, EF management has officially declared PQ security a top strategic priority. Our journey began in 2019, with the "Eth3.0 Quantum Security" presentation at StarkWare Sessions. Since 2024, PQ has been central to the @leanEthereum vision. The pace of PQ engineering breakthroughs since then has been nothing short of phenomenal. It's now 2026, timelines are accelerating. Time to go full PQ: → PQ ACD: Antonio Sanso (@asanso) kicks off a bi-weekly All Core Devs PQ transactions breakout call next month. These sessions focus on user-facing security, covering dedicated precompiles, account abstraction, and longer-term transaction signature aggregation with leanVM. → PQ foundations: Today we are announcing a $1M Poseidon Prize to harden the Poseidon hash function. We are betting big on hash-based cryptography to enjoy the strongest and leanest cryptographic foundations. Check out our other $1M PQ initiative, the Proximity Prize. → PQ devnets: Multi-client PQ consensus devnets are live! Shoutout to pioneers @zeamETH, @ReamLabs, @PierTwo_com, @geanclient, @ethlambda_lean, as well as established consensus teams Lighthouse, Grandine, and soon Prysm. This incredible teamwork is coordinated by @corcoranwill via weekly PQ interop calls. → PQ workshops: Building on last year's PQ workshop in Cambridge (see photo), the EF is hosting another 3-day PQ event in October. Top experts from around the world will convene. In addition, a PQ day is set for March 29 in Cannes just ahead of EthCC. → PQ FV and AI: Last week Alex Hicks (@alexanderlhicks) ran a specialised maths AI for 8 hours, at a $200 cost. It one-shotted a formal proof one of the hardest lemmas in the foundations of hash-based snarks. Mind-blowing. Applied cryptography will never be the same. → PQ roadmap: A comprehensive breakdown of the EF's proposed PQ strategy will be shared soon™ on pq[.]ethereum[.]org. The roadmap targets a full transition in coming years with zero loss of funds and zero downtime. Stay tuned :) → PQ education: The ZKPodcast (@zeroknowledgefm) is producing a 6-part video series on Ethereum's PQ strategy. EF Enterprise Acceleration is also preparing material for enterprises and nation-states. Finally, Ethereum is now represented on the PQ advisory board that Coinbase announced yesterday. Believe in something. Believe in PQ security.

Stop Saying “Bitcoin to $1,000,000.” You’re Measuring It Wrong. Bitcoin isn’t going up. The dollar is going down. Tell me I am wrong at #AfricaBitcoinConference linkedin.com/posts/berndlapp…

Here's what we built: Name: 🦖 zkREX Description: zkREX: Confidential RWA token transactions on a public blockchain Github: github.com/zkRex/ERC-7943xSa… Public URL: ethglobal.com/showcase/zkrex…

It’s over $ETH is doomed Kiss of death by @jimcramer

Amazing to see so many major L2s now at stage 1. The next goal we should shoot for is, in my view, fast (<1h) withdrawal times, enabled by validity (aka ZK) proof systems. I consider this even more important than stage 2. Fast withdrawal times are important because waiting a week to withdraw is simply far too long for people, and even for intent-based bridging (eg. ERC-7683), the cost of capital becomes too high if the liquidity provider has to wait a week. This creates large incentives to instead use solutions with unacceptable trust assumptions (eg. multisigs/MPC) that undermine the whole point of having L2s instead of fully independent L1s. If we can reduce native withdrawal times to under 1h short term, and 12s medium term, then we can further cement the Ethereum L1 as the default place to issue assets, and the economic center of the Ethereum ecosystem. To do this, we need to move away from optimistic proof systems, which inherently require waiting multiple days to withdraw. Historically, ZK proof tech has been immature and expensive, which made optimistic proofs the smart and safe choice. But recently, this is changing rapidly. ethproofs.org/ is an excellent place to track the progress of ZK-EVM proofs, which have been improving rapidly. Formal verification on ZK proofs is also advancing. Earlier this year, I proposed a 2-of-3 ZK OP TEE proof system strategy that threads the needle between security, speed and maturity: ethereum-magicians.org/t/a-s… * 2 of 3 systems (ZK, OP) are trustless, so no single actor (incl TEE manufacturer or side channel attacker) can break the proof system by violating a trust assumption * 2 of 3 systems (ZK, TEE) are instant, so you get fast withdrawals in the normal case * 2 of 3 systems (TEE, OP) have been in production in various contexts for years This is one approach; perhaps people will opt to instead do ZK ZK OP tiebreak, or ZK ZK security council tiebreak. I have no strong opinions here, I care about the underlying goal, which is to be fast (in the normal case) and secure. With such proof systems, the only remaining bottleneck to fast settlement becomes the gas cost of submitting proofs onchain. This is why short term I say once per hour: if you try to submit a 500k gas ZK proof (or a 5m gas STARK) much more often, it adds a high additional cost. In the longer term, we can solve this with aggregation: N proofs from N rollups (plus txs from privacy-protocol users) can be replaced by a single proof that proves the validity of the N proofs. This becomes economical to submit once per slot, enabling the endgame: near-instant native cross-L2 asset movement through the L1. Let's work together to make this happen.

Seriously @coop_ch ?! Why is non alcoholic more expensive?

13 is my lucky number. My jersey # as a player, I love Friday 13th and now I am on twitter (X) for 13 years 🎉 #MeinXJubiläum