Optimism

Optimism has deployed a new **stake-based transaction ordering system** on OP Mainnet, marking the first of several planned sequencer experiments. **How it works:** - Users who stake 100k OP tokens gain top-of-block transaction access - All stakers receive equal priority within their tier - Transactions are ordered strictly first-in, first-out (FIFO) within each tier The system launched on Sepolia testnet first, with mainnet deployment following the publication of testnet findings. Full technical documentation, governance proposals, smart contract code, and security audit reports are now available. This experiment represents Optimism's approach to exploring alternative sequencer mechanisms while maintaining network stability and fairness. [Read the full breakdown](https://www.optimism.io/blog/stake-based-transaction-ordering-a-new-experiment-on-op-mainnet) | [Technical docs](https://docs.optimism.io/notices/stake-based-priority-ordering)

**OP Mainnet is actively listening to community input regarding Ether.fi's upcoming integration.** The Ethereum scaling solution has acknowledged significant community discussion about bringing Ether.fi to its network. In a thread, OP Mainnet emphasized their commitment to hearing user concerns and feedback. This follows previous statements highlighting Ether.fi's "real utility" and strong performance metrics. The integration appears to be moving forward with community engagement as a priority. **Key Points:** - Community feedback is being actively collected and considered - Ether.fi integration with OP Mainnet is in progress - OP Mainnet emphasizes transparency in the onboarding process

Mitsui & Co.'s subsidiary, Mitsui Digital Commodities (MDC), has launched **Zipangcoin** on OP Mainnet - marking the first cryptoasset from a Japanese company on the network. **Key Details:** - Zipangcoin is backed by physical commodities: gold, silver, and platinum - The token will be listed on GMO Coin exchange on April 20 - Represents a significant institutional entry into commodity-backed digital assets This launch demonstrates growing institutional adoption of blockchain technology for tokenizing real-world assets, particularly from established Japanese corporations. [Read the full announcement](https://www.optimism.io/blog/mitsui-co.-digital-commodities-launches-zipangcoin-on-op-mainnet)

**ZPG has launched on OP Mainnet**, joining an ecosystem that includes infrastructure from major players like Coinbase, Soneium, Ink, Bitpanda, and Uniswap. **Key facts:** - Over 50 OP Stack chains now in production - Developed by the Optimism Foundation - Part of the Superchain ecosystem powering 58.5% of all Layer 2 transactions The OP Stack provides shared security, upgrades, and services across all participating networks, creating a unified scaling solution for Ethereum.

A new Ethereum experiment can be reversed at any time without impacting stake withdrawals. The team has built in safety measures - if key performance metrics show problems, they'll switch back to the standard system. This follows earlier security work from February that added protective guardrails to Weighted and Stable pools, blocking operations that serve no legitimate purpose. The rollback capability means validators and stakers face minimal risk during the testing phase.

Optimism has implemented **Phase 2 of its stake-weighted ordering system**, introducing a scoring mechanism that combines three factors: - Stake size - Staking duration - Priority gas fees The system includes several safeguards: - **3x maximum advantage cap** prevents excessive influence - **Diminishing returns** apply when combining stake and priority fees (2x stake + 2x priority) - **Time component** discourages flash loan attacks by penalizing short-term stake borrowing - **Fee market preservation** maintains existing transaction economics Non-staking transactions remain unaffected by these changes. This follows Phase 1, which offered top-of-block access to anyone staking 100k OP tokens with FIFO ordering within that tier.

**ether.fi is now live on OP Mainnet**, bringing its liquid staking protocol to Optimism's Layer 2 network. **Key highlights:** - The protocol completed its migration to OP Mainnet as previously announced in February - Users can now access ether.fi's services with faster transactions and lower fees on Optimism - This expansion strengthens the liquid staking ecosystem on Layer 2 The launch follows ether.fi's earlier announcement about migrating to Optimism, marking the completion of their transition to the scalable Ethereum Layer 2 solution. [Read the full announcement](https://www.optimism.io/blog/ether.fi-is-live-on-op-mainnet)

**Ether.fi has successfully migrated to OP Mainnet**, bringing $220M in total value locked (TVL) - the largest single TVL event in OP Mainnet's history. **Key metrics:** - 300,000 user accounts - 70,000 active cards - Migration completed in 3 days with zero downtime - Cards remained operational throughout the entire process **Technical performance:** - Sub-250ms transaction finality - $0.00001 median transaction fees - 99.99% uptime **What's next:** - Gold Vaults launching soon - Euro card expansion planned - Growing liquidity pool benefits all users The migration demonstrates OP Mainnet's capability to support live consumer products at scale. Ether.fi operates the largest non-custodial crypto card by spend volume, and this move positions both platforms for continued growth in practical crypto payments.

Optimism is participating in the first Ethereum Korea conference, focusing on bringing Korean institutions onto Ethereum and the OP Stack. The initiative represents a strategic expansion into the Korean market, leveraging Optimism's Layer 2 scaling technology to attract institutional adoption. **Key Points:** - First-ever Ethereum Korea conference participation - Focus on institutional onboarding to OP Stack - Expansion of Ethereum's presence in Korean market This move aligns with Optimism's broader mission to scale Ethereum through its Superchain infrastructure and OP Stack technology.

The OP Stack is enabling a new era of blockchain customization, according to insights from @karl_dot_tech. **Key Points:** - Customization allows blockchains to be tailored for specific use cases and requirements - The OP Stack provides the infrastructure to make this customization technically feasible - This represents the next significant wave of innovation in crypto development The ability to customize blockchains opens new possibilities for developers to create specialized solutions rather than one-size-fits-all networks.