Welcome to The Protocol, CoinDesk's weekly wrap of the most important stories in cryptocurrency tech development. I’m Margaux Nijkerk, a reporter at CoinDesk.
In this issue:
ETHEREUM’S NEW AI AGENT STANDARD: Ethereum developers are preparing to roll out ERC-8004, a new standard designed to help software agents find each other, prove who they are and decide who to trust when they operate across different systems. The proposal introduces a simple idea: If AI agents are going to transact, coordinate and execute tasks autonomously, they need persistent identities and a shared way to build credibility — much like users, wallets or smart contracts do today. It comes as large companies race to deploy AI agents internally. Most systems still rely on closed identity lists, API keys or bilateral trust agreements. That works inside a firm, but breaks down once agents need to coordinate across vendors, chains or jurisdictions. ERC-8004 defines three lightweight registries that can live on Ethereum mainnet or layer-2 networks. The first is an identity registry, which assigns each agent a unique on-chain identifier using an ERC-721-style token. That identifier points to a registration file describing what the agent does, how to reach it and which protocols it supports. Ownership of the identifier can be transferred, delegated or updated, giving agents portable, censorship-resistant identities. The second is a reputation registry, where clients — human or machine — can submit structured feedback about an agent’s performance. The registry stores raw signals on-chain, while allowing more complex scoring and filtering to happen off-chain. The goal isn’t to rank agents directly but to make reputation data public and reusable across applications. The third is a validation registry, which lets agents request independent checks of their work. Validators could include staked services, machine learning proofs, trusted hardware or other verification systems. These results are stored on the blockchain so other users can see what was checked and by whom. — Shaurya Malwa Read more.
SOLANA’S LATEST PHASE IS FOCUSED ON BUILDING: Solana’s latest phase looks a lot less flashy than its memecoin-fueled highs, and that may be the goal. Armani Ferrante, CEO of crypto exchange Backpack, told CoinDesk in an interview the Solana ecosystem has spent the past year doubling down on a more sober focus: financial infrastructure. After years of experimentation as the wider crypto industry focused on NFTs, games and social tokens, attention is now shifting back toward decentralized finance, trading and payments. “People are really starting to think about blockchains as a new kind of financial infrastructure,” Ferrante, who will be speaking at CoinDesk's Consensus Hong Kong conference next month, said. “It’s less about NFTs, less about random moonshot-like games, and much more about finance.” That shift has made Solana feel dull to some outside observers, but Ferrante framed it as a sign of maturity. The network is increasingly positioning itself around high-throughput onchain trading, market structure and settlement, what some have dubbed as “internet capital markets.”The pivot comes amid a stark divide between crypto sentiment and traditional finance. While crypto prices remain subdued and crypto-native investors remain cautious, Ferrante said institutional interest has rarely been stronger. “If you ask anyone on Wall Street, they’ve never been more bullish,” he said, pointing to growing momentum around tokenization, stablecoins and onchain settlement.— Margaux Nijkerk Read more.
OPTIMISM BEGINS VOTING ON OP TOKEN BUYBACKS: The Optimism community started voting on a governance proposal linking the value of the OP token more directly to the economic performance of the Superchain, a growing network of Ethereum layer-2 blockchains built using the OP Stack. If approved, the plan introduced by the Optimism Foundation will dedicate half the ether revenue generated by the Superchain sequencer to monthly buybacks of the OP token over an initial 12-month period. The foundation said the plan represents a significant evolution for OP, which has primarily functioned as a governance token, and expects it to translate into structural demand for OP. “Every transaction across every OP Chain expands the base from which buybacks operate,” the proposal states, framing OP as a token increasingly aligned with network usage in addition to its governance role. Voting opened last week and members have 6 days to vote on the proposal. — Margaux Nijkerk Read more.
EF UNVEILS POST QUANTUM COMPUTING AS PRIORITY: The Ethereum Foundation (EF), a nonprofit organization that supports Ethereum’s development, is turning its long running post-quantum research into a public engineering push, forming a dedicated “Post Quantum” team and calling the effort a top strategic priority for the network. EF researcher Justin Drake said the new group will be led by researcher Thomas Coratger, who Drake described as a key talent behind "leanVM." Drake framed leanVM as a core part of Ethereum’s broader approach to post-quantum security, arguing that timelines are accelerating and that Ethereum should move into a build phase rather than keep work in the background. The announcement comes as crypto markets have become more sensitive to quantum risk headlines, even if the practical threat remains a longer dated problem. Quantum computing uses new types of processors that could one day break today’s encryption much faster than normal computers. Blockchain developers worry it could eventually expose wallet keys, forcing networks to upgrade cryptography well before that risk becomes real. The bigger issue for large networks is not a single breakthrough moment but the time it takes to ship a safe transition, update wallets and move users onto new formats without breaking daily usage. Drake outlined several near-term steps. A biweekly developer session focused on post-quantum transactions is expected to start next month, led by Antonio Sanso. The agenda is aimed at user-facing defenses, including dedicated cryptographic tools inside the protocol, account abstraction paths and longer-term work on aggregating transaction signatures using leanVM. - Shaurya Malwa Read more.
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Pudgy Penguins is emerging as one of the strongest NFT-native brands of this cycle, shifting from speculative “digital luxury goods” into a multi-vertical consumer IP platform. Its strategy is to acquire users through mainstream channels first; toys, retail partnerships and viral media, then onboard them into Web3 through games, NFTs and the PENGU token.
The ecosystem now spans phygital products (> $13M retail sales and >1M units sold), games and experiences (Pudgy Party surpassed 500k downloads in two weeks), and a widely distributed token (airdropped to 6M+ wallets). While the market is currently pricing Pudgy at a premium relative to traditional IP peers, sustained success depends on execution across retail expansion, gaming adoption and deeper token utility.
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