Now, account abstraction.
We have been talking about account abstraction ever since early 2016, see the original EIP-86: https://t.co/E4xJymAxiH
Now, we finally have EIP-8141 ( https://t.co/YD9nIpsxcC ), an omnibus that wraps up and solves every remaining problem that AA was intended to address (plus more). Let's talk again about what it does.
The concept, "Frame Transactions", is about as simple as you can get while still being highly general purpose. A transaction is N calls, which can read each other's calldata, and which have the ability to authorize a sender and authorize a gas payer. At the protocol layer, *that's it*.
Now, let's see how to use it.
First, a "normal transaction from a normal account" (eg. a multisig, or an account with changeable keys, or with a quantum-resistant signature scheme). This would have two frames:
* Validation (check the signature, and return using the ACCEPT opcode with flags set to signal approval of sender and of gas payment)
* Execution
You could have multiple execution frames, atomic operations (eg. approve then spend) become trivial now.
If the account does not exist yet, then you prepend another frame, "Deployment", which calls a proxy to create the contract (EIP-7997 https://t.co/sIQrtJDXLt is good for this, as it would also let the contract address reliably be consistent across chains).
Now, suppose you want to pay gas in RAI. You use a paymaster contract, which is a special-purpose onchain DEX that provides the ETH in real time. The tx frames are:
* Deployment [if needed]
* Validation (ACCEPT approves sender only, not gas payment)
* Paymaster validation (paymaster checks that the immediate next op sends enough RAI to the paymaster and that the final op exists)
* Send RAI to the paymaster
* Execution [can be multiple]
* Paymaster refunds unused RAI, and converts to ETH
Basically the same thing that is done in existing sponsored transactions mechanisms, but with no intermediaries required (!!!!). Intermediary minimization is a core principle of non-ugly cypherpunk ethereum: maximize what you can do even if all the world's infrastructure except the ethereum chain itself goes down.
Now, privacy protocols. Two strategies here. First, we can have a paymaster contract, which checks for a valid ZK-SNARK and pays for gas if it sees one. Second, we could add 2D nonces (see https://t.co/1cRegaXpHM ), which allow an individual account to function as a privacy protocol, and receive txs in parallel from many users.
Basically, the mechanism is extremely flexible, and solves for all the use cases. But is it safe? At the onchain level, yes, obviously so: a tx is only valid to include if it contains a validation frame that returns ACCEPT with the flag to pay gas. The more challenging question is at the mempool level.
If a tx contains a first frame which calls into 10000 accounts and rejects if any of them have different values, this cannot be broadcasted safely. But all of the examples above can. There is a similar notion here to "standard transactions" in bitcoin, where the chain itself only enforces a very limited set of rules, but there are more rules at the mempool layer.
There are specific rulesets (eg. "validation frame must come before execution frames, and cannot call out to outside contracts") that are known to be safe, but are limited. For paymasters, there has been deep thought about a staking mechanism to limit DoS attacks in a very general-purpose way. Realistically, when 8141 is rolled out, the mempool rules will be very conservative, and there will be a second optional more aggressive mempool. The former will expand over time.
For privacy protocol users, this means that we can completely remove "public broadcasters" that are the source of massive UX pain in railgun/PP/TC, and replace them with a general-purpose public mempool.
For quantum-resistant signatures, we also have to solve one more problem: efficiency. Here's are posts about the ideas we have for that: https://t.co/xzG3Jp7Yky https://t.co/WikL7gJ5qg
AA is also highly complementary with FOCIL: FOCIL ensures rapid inclusion guarantees for transactions, and AA ensures that all of the more complex operations people want to make actually can be made directly as first-class transactions.
Another interesting topic is EOA compatibility in 8141. This is being discussed, in principle it is possible, so all accounts incl existing ones can be put into the same framework and gain the ability to do batch operations, transaction sponsorship, etc, all as first-class transactions that fully benefit from FOCIL.
Finally, after over a decade of research and refinement of these techniques, this all looks possible to make happen within a year (Hegota fork).
https://t.co/p7XOgId5NN
⚠️ We're seeing an uptick in phishing emails targeting ENS users.
ENS will never email you asking you to migrate your name, claim a reward, or connect your wallet. If you received something like this, do not click any links.
Stay safe out there. When in doubt, go directly to the ENS website.
My Ethereum Privacy Stack posters
@web3privacy & @PrivacyEthere & @VitalikButerin & more.
For the Blockchain lab at the University in Venezuela, the return trip was very difficult, but they are a treasure!
They made them change their route, but they have a privileged place.
En #TrustlessAgentDay@VitalikButerin y @DavideCrapis debatieron los principios de una economía de robots descentralizada y segura.
¿Qué significa un mundo donde los agentes de IA toman decisiones por ti...
sin necesidad de confiar en nadie?
Es suficiente x402 y ERC-8004?
🚨 ¡El futuro de la privacidad en @ethereum! 🚨
#EthereumPrivacyStack@EFDevcon Argentina 2025.
@VitalikButerin y Roger Dingledine reflexiones de las bases para una red verdaderamente privada.
Onionizing Ethereum o la libertad digital empieza con la privacidad
@ETHVenezuela
🔥 Hsiao-Wei Wang (EF) acaba de soltar la verdad en #EthereumPrivacyStack
“Ethereum is for Defipunk” no es solo un lema, es una misión.
Hoy desmontó por qué construir DeFi verdaderamente ciberpunk es difícil… pero necesario. Sin atajos. Sin centralización. Con privacidad real.
📌 La ironía de la DeFi: soñamos con un banco ciberpunk descentralizado...
...pero hoy, en la realidad, hasta para abrir una cuenta te piden KYC y te dicen "tu país no está habilitado".
La promesa de Ethereum es libertad financiera sin fronteras. Pero mientras tanto,...
sin tribunales tradicionales.
Pero... ¿y los estados?
La regulación sigue siendo el gran obstáculo.
La justicia descentralizada no puede existir en un vacío legal.
Lograr un consenso parece una solución.
⚖️ ¿Cómo se integra la ley con la blockchain? En el panel "Derecho y Blockchain" en #DevConnectARG expertos como Rodrigo Bionda y Gonzalo Rodríguez abordaron el desafío.
@kleros_es, un protocolo de justicia descentralizada, es clave: resuelve disputas con jurados tokenizados...
💸 Cuál es el futuro de los pagos en Internet. Con tarjetas o con agentes?
🔹 **Protocolo x402**: pagos nativos en la web (ya existe, usado por browsers y bots)
🔹 **AP2**: el marco abierto para pagos entre agentes de IA
🔹 **ERC-8004**: el sistema de reputación para agentes