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Trade your shielded $ZEC for confidential USDC on Ethereum, without ever unshielding it. No bridge. No custodian. No wrapped ZEC. And the amount never shows up on chain. I connected @zama and @Zcash to make it work. Live on testnet 👇 What it is ZEC Desk is a small trading desk on Zama's FHEVM, on Ethereum Sepolia. On one side there's cUSDC, a dollar token whose balances are encrypted. On the other side there's shielded ZEC on Zcash testnet. You can trade either way. Built on Zama's model Zama's Confidential RFQ is already live on Ethereum mainnet, open to everyone: It runs confidential swaps with encrypted quotes, a sealed-bid pick on chain and a hidden floor. ZEC Desk takes that same model and extends it to native shielded ZEC. Zama's swap settles both legs on one chain, inside its own contract, so a Zcash leg can't plug into it directly. Here that leg lives on Zcash and settles minutes later with a proof, so the mechanics run in my own contract. It's a sketch of how native ZEC could sit next to Zama's swaps one day, with no wrapped token. How a trade works (buying ZEC) 👇 1️⃣ You lock cUSDC in the desk. The amount is encrypted. 2️⃣ Makers send encrypted quotes. Nobody sees anyone else's price, or the minimum you'll accept. 3️⃣ The contract picks the best one under FHE. 4️⃣ The winning maker sends shielded ZEC to your Zcash address, with the order's reference in the memo. 5️⃣ A zero-knowledge proof shows that payment happened, and the contract releases your cUSDC to the maker. If no proof arrives in time, your cUSDC comes back to you. Selling is the same in reverse: the maker locks cUSDC, you pay the ZEC, and the proof releases the cUSDC to you. Why these pieces Each piece does one job. Zcash keeps the payment private. Zama keeps the amounts encrypted and can still compute on them. Seam, the Zcash light client I built last month, connects the two: a contract checks every Zcash block header itself, and a RISC Zero proof shows a shielded payment reached the right receiver. The transaction, the note and the address never touch the EVM chain. The masked amount This was the hard part. Seam's proof used to write the paid amount in the clear, and ZEC amount × price gives away the dollar amount. So the amount is masked. The contract adds an encrypted one-time mask to the encrypted amount and reveals only the sum, which looks random to everyone else. The mask comes from a secret that the side receiving the ZEC hands to the payer. The proof checks that the payment was at least the sum minus the mask, and never states the amount. One-time pads are old, and Zama's RFQ uses one too. Using one to hand a value from FHE to a ZK proof is the part I haven't seen before. If you have, please send it my way. No vault, no signers Seam can read Zcash, but it can't take ZEC from anyone. So the design never needs someone to pay ZEC on someone else's behalf. Whoever pays, pays from their own wallet, and the escrow on the EVM side enforces the deal. The side that paid the ZEC can prove it itself, so nobody depends on the other side's goodwill. Seam does more than this Any EVM app that needs to know a shielded payment happened can use Seam: pay-with-ZEC checkouts, escrows, payouts, cross-chain orders. This desk is one example. Where it stands ↓ Testnet only, unaudited. On 12 November 2026 I ran a Buy end to end: ➡️ Settled with a proof: ➡️ One proof: 2 minutes on a rented RTX 4090, about $0.25 for the whole session ➡️ Gas per Buy on Sepolia: about 7.6M, in six transactions ➡️ A Sell also ran on Sepolia, up to the maker locking its cUSDC; it settles through the same proof step ➡️ Seam's light client is now deployed on Ethereum Sepolia too, next to Base Sepolia Where it can go ↓ → The desk only needs Zama's FHEVM and a cUSDC. Both already run on Polygon, where following Zcash costs a fraction of Ethereum mainnet. → Zama keeps adding chains. On any cheap EVM chain it reaches, the same desk can run, and if it comes to Base, Seam's relay already runs on Base Sepolia. → Zama's roadmap also goes beyond the EVM, to chains like Solana. Seam's verifier would need a port there. → On Ethereum mainnet, following Zcash header by header would cost over 2B gas a day, so batched header proofs are next for Seam. What it can't do yet - Settlement takes minutes, not seconds. Zcash confirmations set the pace, not the GPU. - Right now I'm the only maker, and a maker needs ZEC, cUSDC and a GPU. - Amounts are hidden, but EVM addresses are public. Read more ↓ Seam on Seam: ZEC Desk:

If I had $500k in crypto now, I would: 1. Go full-time crypto. Move somewhere cheap. One year to make it. 2. No BTC, no ETH, no SOL, no HYPE. 3. No memecoins. No directional leverage. 4. Allocate $250k to a delta-neutral strategy between @tradexyz and @metricxyz. -> Short equity perps trading at a premium on tradexyz, buy the matching tokenized equities on metricxyz. One strategy, three potential airdrops: HL S3 + tradexyz + metricxyz. 5. Allocate $50k to prediction markets on HIP-4. Market make tradfi outcomes. If options launch, be ready to arb them against a broker from day one. 6. Deposit and loop $200k of sUSDe on Aave. -> Deposit sUSDe, borrow USDC, swap into more sUSDe. Use the net yield and some of the principal to cover living expenses. Rotate into @acier, an upcoming lending protocol, when it's live. 7. Build AI apps on @flop_labs during testnet. -> Vibe code your own apps. Use free testnet inference to get your first users and position yourself for the FLOP agent airdrop. The goal: stay consistent and optimistic while positioning myself for potentially huge airdrops. One year. Locked in.

we just made @ethrex_client again the fastest client in @ethereum. i've always said, lambda would deliver and push the boundaries of ethereum. after a couple of months focused on Glamsterdam hardening and Hegota prototyping, including hosting several public testnets for the most important EIPs coming in Hegota, we've turned our attention back to performance. this doesn't mean we're stepping away from that work, where we still have a lot to contribute. The early results are very promising. In just a couple of days, we brought block processing time down from ~40ms to ~26ms in mainnet, making ethrex the fastest client once again. The image below compares how we perform today (ethrex-baseline) with what we've been cooking (ethrex-testing). congrats @class_lambda, i'm proud of the team we've built. i love working with people that are way smarter than me. thanks @ethereumfndn for the constant support.

Arc Studio is positioning itself as a faster route from a written idea to a testable web application The platform, available at allows users to sign in with an @arc House email and describe the product they would like to build In one trial, a simple prompt build a wallet that sends USDC was enough for the system to generate a working app From there, the flow is straightforward : → Connect a wallet → Send USDC on Arc testnet → Test the application without paying fees The setup stays lightweight, keeping the focus on testing the product rather than configuring the infrastructure For teams exploring early concepts, that may be the biggest advantage : Less time building the first version More time finding out whether the idea actually works.

AMA @playcambria Pre-TGE + Génesis "Charters coming, and then TGE, and then testnet the day after TGE." @cyberpunk lays out the Cambria Genesis launch order. Testnet will be incentivized, with a "massive bug bounty." @communitybria

VEXLORE QUANTUMPROOF CHAIN — UPCOMING VERSIONS Roadmap v0.2 — NETWORK - connect many computers together - nodes talk and share blocks - auto sync new blocks - basic peer list v0.3 — BETTER CHAIN - mempool (waiting transactions) - difficulty that changes - bigger blocks support - faster validation - save chain to disk properly v0.4 — WALLET UPGRADES - seed phrase backup - encrypted wallet file - multiple addresses - transaction history - balance check fast v0.5 — POST-QUANTUM EXTRA - ML-KEM (key exchange) for node messages - hybrid signatures (old + new) - quantum-safe address format - key rotation support v0.6 — STATE & DATA - account balances stored clean - Merkle tree for quick checks - prune old data option - export / import chain v0.7 — API & TOOLS - simple RPC commands - block explorer (local web page) - CLI commands improved - log viewer v0.8 — CONSENSUS - multiple miners - orphan block handling - chain reorg rules - reward per block v0.9 — CONTRACTS (light) - simple script rules - basic token send rules - multi-sig wallets - time-lock transactions v1.0 — PUBLIC TEST - open testnet - faucet public - node installer - docs + examples - stability fixes

A longer CTA you can post as one piece Acepyr is live in testnet. The short version: judgement markets, 5-minute crypto windows, a public record of how you read, and a waitlist capped at 10,000. The honest version: $ACEPYR today is points. No value, no purchase path, no promised ratio. The first 10k who still qualify at launch may get $5 if mainnet happens. Referrals pay when the person verifies, links a proven wallet, and joins that waitlist. The weekly board records volume in testnet points. @acepyr

DogeOS just opened its public testnet (Sept 30). EVM app layer on Dogecoin, DOGE for gas, testnet bridge live between DOGE testnet and DogeOS. Lending, DEXs, a DOGE stablecoin, perps and games already building. MyDoge team, Polychain-backed. The Vibe: Dogecoin going from asset to ecosystem. Mainnet next. @DogeOS @MyDoge @dogecoin #DogeOS# #DOGE# #Dogecoin#

HABEMUS TESTNET — DAISUGI v0.1 A post-quantum Ethereum testnet using hash-based SPHINCS signatures with non-native account abstraction. Big thanks to @riva_labs and @GiulioRebuffo. Coming next: • Frame Transactions • Signature aggregation via LeanSPHINCS Believe in somETHing. Link ⬇️

Two legendary L1s are now talking to each other. I already covered the Cardano × Injective IBC connection when it went live on testnet. Now let’s look at what this actually means for regular users. If it reaches mainnet, everyday holders could: - Move $ADA into @injective’s high-speed DeFi (order books, derivatives, deeper liquidity) without relying on traditional bridges - Bring $INJ into the @cardano ecosystem more easily - Access apps and liquidity across both networks with lower risk and fewer middlemen through @IBCProtocol This isn’t just another bridge. It’s a more direct and secure path between two major ecosystems that could unlock real utility for both assets. Still testnet for now, but if it holds up, this connection has the potential to matter for regular users, not just protocols. Watching closely.