Zcash’s NU7 upgrade is now live on testnet, giving developers several weeks to assess 25-second blocks and other protocol changes before a planned November mainnet activation.
The first version depends on DogeOS’s selected operators and hardware. A permissioned sequencer, an authorized operator, decides the order of transactions.
Validators, computers responsible for checking and approving updates, work alongside a trusted execution environment, a protected section of computer hardware that checks the proofs. A committee called the Security Council oversees the system, according to details shared by the team.
People using the planned applications would therefore rely on those operators and hardware to work correctly. Dogecoin’s miners do not yet verify the application proofs themselves.
DogeOS wants to give them that role through an upgrade to Dogecoin Core, the main software running the network. Its proposal, called OP_CHECKZKP, would add a rule allowing computers on Dogecoin to check proofs that calculations performed elsewhere were correct.
The proposal was published in July 2025. A separate implementation submitted in December remains a draft, with a placeholder proof checker and further development required before it could be activated.
DogeOS was founded by the team behind MyDoge, a Dogecoin wallet. Founder Jordan Jefferson told CoinDesk this month that buying DOGE was already easy, but attracting institutional investors required a stronger case for owning it, after Bitwise said it would close its dogecoin ETF.
Grand Cayman, Cayman Islands, June 23rd, 2026, Chainwire
Sui aims to transition more of Bitcoin’s $1.2T market cap into verifiable, productive onchain products.
Hashi, Sui’s native bitcoin finance primitive, gains more institutional support ahead of the scheduled launch of its global testnet this July.
Sui, where money moves as freely as messages, announced today that Cumberland, Fluid, and SwissBorg have joined the Hashi ecosystem, Sui’s native bitcoin finance primitive, weeks ahead of its scheduled global testnet launch this July. The expanding coalition addresses a critical bottleneck in crypto: solving the persistent capital inefficiency by unlocking over a trillion dollars of immobile BTC into DeFi safely.
Previous market cycles demonstrated the systemic dangers of relying on opaque, centralized credit intermediaries such as Celsius, Voyager, and Genesis to generate utility from dormant assets. Hashi replaces centralized balance-sheet trust with verifiable smart contract logic.
But with a strict separation for safety by design, Bitcoin remains securely on the native Bitcoin blockchain. Sui smart contracts handle the cryptographic and programmatic rights to enable its use as financial collateral.
“Hashi was built to unlock the productive use of Bitcoin at a scale the industry hasn’t seen before,” Adeniyi Abiodun, Co-Founder and Chief Product Officer of Mysten Labs, the original contributor to Sui. “We believe Bitcoin will become one of the largest sources of collateral in finance as the world moves onchain, and Hashi provides the foundation to make that possible on Sui.”
Built for Institutional Bitcoin Finance
Hashi is a foundational primitive setting a new standard for how builders can create bespoke, Bitcoin-backed financial products with risk parameters and loan terms that are fully verifiable onchain. In just a few weeks’ time, institutions, custodians, wallet providers, and developers can begin freely testing the infrastructure that will support Bitcoin-backed lending, borrowing, and credit origination on Sui.
Expanded Institutional Support
Three new powerhouses join the growing Hashi ecosystem, broadening support for institutional liquidity providers, market makers, and digital asset platforms:
- Cumberland: One of the digital asset industry’s largest institutional market makers, Cumberland joins the Hashi ecosystem to evaluate the protocol’s structural frameworks and prepare for eventual onchain liquidity provisioning.
- SwissBorg: A European wealth management app with over one million users, is exploring opportunities to connect its network of European high-net-worth Bitcoin holders and liquidity providers to Hashi, creating new pathways for Bitcoin-backed borrowing and lending.
- Fluid: A major DeFi lending protocol with a strong record of efficient, safe trades, is now building in preparation for mainnet institutional services. Fluid’s participation would provide institutional-grade lending markets and deepen access to Bitcoin-backed credit on Sui.
These new builders join an industry-leading group of infrastructure providers, custodians, and DeFi protocols already working together to build a native Bitcoin financial ecosystem on Sui.
“Bitcoin is the world’s most liquid digital asset, but without native utility, it remains an off-chain asset,” said Paul Kremsky, Global Head of Business Development at Cumberland. “Hashi is exciting because it introduces a transparent, institutional-grade framework for BTC-backed credit that will replace synthetic workarounds with a product we are excited to use ourselves.”
“Our community has consistently sought native ways to lend and borrow against their Bitcoin,” said Cyrus Fazel, Founder & CEO at SwissBorg. “We’re thrilled to see Hashi delivering innovative solutions that make this a reality.”
“The next phase of the industry’s growth will come from bringing larger pools of capital onchain through infrastructure institutions can actually trust,” said Samyak Jain, Co-Founder & CEO at Fluid. “Hashi gets this right: Bitcoin stays on its native chain while verifiable contracts make it productive as collateral. Fluid’s lending infrastructure is built to turn that into deep, capital-efficient Bitcoin-backed credit markets on Sui.”
These additions expand the growing consensus of many partners announced earlier this year that Sui is where Bitcoin finance will take flight, thanks to Hashi:
Custody & Wallet Access
- BitGo: Institutional custody clients.
- Blockdaemon, Cobo, Fordefi (by Paxos): Institutional wallet and infrastructure providers.
- Cubist: Cross-chain collateral infrastructure and transfer engine.
- Ledger: Retail/institutional self-custody.
- SwissBorg: UHNW European retail/institutional asset management and wallet interface.
Lending, Trading & Liquidity Providers
- Bullish: Institutional digital asset platform supplying liquidity.
- Cumberland: Leading institutional crypto market maker and liquidity provider.
- Erebor: OCC-chartered bank providing liquidity.
- FalconX: Institutional prime brokerage supplying liquidity.
DeFi & Lending Applications
- AlphaLend, Bluefin, Current, Scallop, Suilend: Native DeFi protocols enabling retail lending and borrowing on day one.
- Fluid: Connecting lending, borrowing, liquidity and more financial products into a capital-efficient system.
- Navi: One of Sui’s largest and longest running DeFi protocols slated for Hashi lending.
Vaults & Asset Management
- Concrete by Blueprint Finance: Yield-infrastructure vault platform.
- Inveniam Capital: Real-World Asset (RWA) yield strategies.
- Wave Digital Assets LLC: SEC-registered investment adviser working with industry partners to facilitate the issuance of Bitcoin-collateralized bonds.
Index Oracle, Insurance & Security Auditing
- CF Benchmarks: Crypto index provider distributing pricing data via oracles.
- Soter Insure: Native, Bitcoin-denominated institutional insurance.
- Asymptotic, Certora, OtterSec: Smart contract security and formal verification auditors.
The activation of the global testnet this July represents the ultimate rehearsal for fully changing Bitcoin Finance. This sandbox environment is designed for institutional engineers, Sui protocols and developers, and custody partners to test integration parameters, stress-test the code under simulated market volatility, and verify cryptographic integrity ahead of mainnet release.
Technical documentation and testnet access configurations will be hosted at https://www.sui.io/hashi.
About Sui
Sui, where money moves as freely as messages, is a next-generation Layer 1 blockchain built for scalable finance and global payments. Founded by the core team behind Meta’s stablecoin initiative and powered by an object-centric model, Sui makes assets, permissions, and user data programmable and ownable. Sui’s primitives offer builders everything they need to create high-performance payments and financial applications, including instant agentic payments. Users can learn more at sui.io.
Contact: media@sui.io
Contact
Sui Foundation
media@sui.io
Circle has made a big move for developers. Its Circle Contracts platform now works on Arc Testnet. Builders can deploy, manage, and monitor smart contracts with enterprise-level tools. The system is designed to make smart contracts simple and fast.
Developers can use ready-made, security-audited templates to tokenize assets in minutes. They can create ERC-20, ERC-721, and ERC-1155 tokens for lending, trading, rewards, and payments. A single console handles the full lifecycle of contracts. Users can monitor key events and get notifications through webhooks. Circle Contracts on Arc Testnet is free, giving developers room to experiment without extra costs.
Circle Contracts now supports Arc Testnet!
Arc developers can now deploy, manage, and monitor smart contracts with enterprise-grade tooling. Smart contracts made effortless.
→ Security-audited templates to tokenize assets in minutes
→ Spin up ERC-20, ERC-721, and ERC-1155 for… pic.twitter.com/vV0AoTXpc4— Arc (@arc) December 2, 2025
Circle Wallets and Expanded Access
Alongside smart contracts, Circle Wallets is now live on Arc Testnet. Builders can access a full range of wallet infrastructure that is flexible, embeddable, secure, and multichain. This allows faster development without running custom infrastructure or learning complex coding languages like Solidity.
Circle Gateway is live on Arc Testnet, unlocking instant crosschain USDC liquidity for all builders.
→ Create unified USDC balances
→ Deliver on-demand crosschain liquidity
→ Plug-and-play access to any supported chain pic.twitter.com/EStBFdteAA— Arc (@arc) November 24, 2025
Circle has been expanding quickly. Recent moves include partnerships and integrations such as:
- Circle and OpenMind teaming up for AI payments, helping machines interact securely with digital currency.
- USDC and developer tools launching on Monad Blockchain, enabling smooth cross-chain transactions for DeFi.
- xReserve for interoperable USDC stablecoins, letting teams deploy tokens across networks without third-party bridges.
- ClearBank partnership to expand access to Circle-backed digital currencies in Europe.
Introducing Circle xReserve, a new interoperability infrastructure for blockchain teams to launch USDC-backed stablecoins.
Built to expand the USDC ecosystem, xReserve enables developers and users to transfer value seamlessly between USDC and USDC-backed stablecoins across… pic.twitter.com/lXKWSibwZT
— Circle (@circle) November 18, 2025
These expansions highlight Circle’s focus on developer-friendly tools, enterprise-ready services, and broader USDC adoption.
Why This Matters
Circle’s growth in tools and infrastructure signals stronger support for developers building blockchain applications. With easy smart contract deployment, secure wallets, and global partnerships, the company is pushing adoption of USDC and other digital assets. Developers now have faster, safer, and more flexible ways to create and manage digital contracts.
Disclaimer
The information discussed by Altcoin Buzz is not financial advice. This is for educational, entertainment and informational purposes only. Any information or strategies are thoughts and opinions relevant to accepted levels of risk tolerance of the writer/reviewers, and their risk tolerance may be different from yours.
We are not responsible for any losses that you may incur as a result of any investments directly or indirectly related to the information provided. Bitcoin and other cryptocurrencies are high-risk investments, so please do your due diligence.
Copyright Altcoin Buzz Pte Ltd.
Circle, the world’s second-largest stablecoin issuer, launched the public testnet for Arc, its open layer-1 blockchain network built to bring global financial infrastructure onchain.
The rollout, which Circle calls the “Economic Operating System for the internet,” includes participation from over 100 major companies spanning banking, capital markets and fintech — among them BlackRock, Goldman Sachs, Visa, Mastercard and State Street, according to a Tuesday announcement.
“With Arc’s public testnet, we’re seeing remarkable early momentum as leading companies, protocols, and projects begin to build and test,” Circle CEO Jeremy Allaire said. “Combined, these companies reach billions of users, move, exchange, and custody hundreds of trillions in assets and payments,” he added.
Arc is designed to provide predictable US dollar-based fees, sub-second finality and optional privacy controls, directly integrating with Circle’s USDC (USDC) stablecoin and payments stack. It aims to support a broad range of financial applications, from lending and capital markets to global payments and foreign exchange (FX).
Related: ClearBank to become one of first EU banks to join Circle Payments Network
Institutions join Circle’s Arc testnet
The testnet launch has drawn engagement from major institutions such as Apollo, BNY Mellon, Intercontinental Exchange and Deutsche Bank, as well as global payment firms Mastercard, FIS, Paysafe and Nuvei.
Circle said Arc’s purpose-built architecture connects local markets across continents, from Africa to the Americas and Asia, offering enterprise-grade infrastructure for both traditional financial institutions and Web3-native projects.
Another important feature of Arc is its role in stablecoin infrastructure. The network supports fiat-pegged tokens, tokenized funds and FX liquidity. Issuers from seven countries, including JPYC (Japan), BRLA (Brazil), MXNB (Mexico) and PHPC (Philippines), have joined the testnet.
Arc’s ecosystem extends beyond finance, integrating with leading developer and infrastructure providers such as MetaMask, Fireblocks, Chainlink, Alchemy and LayerZero, alongside crosschain bridges like Wormhole and Stargate.
AI integration is also on the roadmap, with Anthropic’s Claude Agent SDK enhancing the developer experience through AI-powered tools.
Related: Tempo, Stripe’s new blockchain, hits $5B valuation in $500M funding round
Circle to connect global markets
Allaire said Arc is “purpose-built to connect every local market to the global economy,” adding that it presents the opportunity for every type of company to “build on enterprise-grade network infrastructure.”
Circle said the long-term goal is to transition Arc into a community-governed network, expanding validator participation and establishing transparent governance.
Circle announced plans to launch Arc in August. At the time, the company said the network was set to use USDC as its native gas token. Last week, Allaire also announced that Circle is building private stablecoins on Arc.
Magazine: Back to Ethereum — How Synthetix, Ronin and Celo saw the light
Dubai, UAE, Oct. 19, 2025 (GLOBE NEWSWIRE) — Ethereum-based Mutuum Finance (MUTM) continues to make headway in the decentralized finance sector as it advances toward the launch of its Version 1 (V1) protocol on the Sepolia testnet, scheduled for Q4 2025. The project, which is building a non-custodial lending and borrowing ecosystem, has now raised over $17.6 million through its structured presale and attracted more than 17,300 holders, signaling steady market interest in its development.
Roadmap and Development Progress
Mutuum Finance recently completed Phase 1 of its four-stage roadmap, marking an early milestone in its broader rollout plan. The completed stage included several key deliverables such as the initiation of presale operations, the launch of educational materials outlining Mutuum’s ecosystem mechanics, and the formation of a legal and compliance framework.
With Phase 1 finalized, the project has now entered Phase 2, which focuses on expanding the platform’s functionality, continuing development, and preparing for the upcoming testnet debut. The team confirmed that the V1 protocol will feature essential components such as liquidity pools, mtTokens, debt tokens, and automated liquidator bots, providing the foundation for Mutuum’s decentralized lending model.
Upon launch, users will be able to lend and borrow assets like ETH and USDT, with additional tokens expected to be supported later. The testnet release will serve as an important validation step ahead of the mainnet deployment, allowing for performance testing, community feedback, and further optimization.
Structured Presale and Token Performance
Mutuum Finance’s presale has been a notable factor in its early momentum. The event follows a phase-based pricing model, which has attracted a growing community of participants through transparent progression and predictable token value increases.
The MUTM token launched at $0.01 in Phase 1 and is currently priced at $0.035 in Phase 6, reflecting a 250% increase since inception. The final listing price is set at $0.06, indicating a structured appreciation model within the presale framework.
So far, around 70% of Phase 6 has been sold, and with each subsequent stage, the price will rise by approximately 20%, aligning with the tokenomics outlined in Mutuum’s public documentation. Out of a total supply of 4 billion MUTM tokens, 1.82 billion have been allocated to the presale, with roughly 770 million tokens already sold across earlier stages.
To enhance participation and maintain transparency during the presale, Mutuum Finance has introduced a real-time dashboard that enables contributors to track their holdings and calculate potential returns based on token allocation.
Additionally, the team recently implemented a 24-hour leaderboard system designed to reward engagement within the community. Each day, the top depositor receives a $500 MUTM allocation, provided at least one transaction is made during the period. The leaderboard resets daily at 00:00 UTC, promoting consistent user activity and visibility into presale contributions.
Long-Term Development and Future Utility
Following the testnet launch, Mutuum Finance’s roadmap includes several upcoming initiatives aimed at broadening its functionality and ecosystem reach. Key future developments include Layer-2 integration to enhance scalability and reduce transaction costs, as well as the introduction of an over-collateralized stablecoin pegged to the U.S. dollar.
This stablecoin will play a central role within the ecosystem by facilitating more efficient lending and borrowing operations and channeling interest revenue back to the Mutuum treasury. The project also plans to expand across multiple chains, positioning itself within the growing multi-chain DeFi crypto environment.
Through its mtToken system, which represents deposit receipts that automatically increase in value as interest accrues, users will have access to transparent, on-chain income generation opportunities. Meanwhile, the buy-and-distribute mechanism, built into the platform’s model, will allocate a portion of protocol fees to repurchase MUTM from the open market and redistribute it to token stakers, reinforcing long-term value circulation.
Mutuum Finance’s approach places it among a select group of new crypto projects focusing on real functionality rather than speculative momentum. The project’s progress comes at a time when decentralized finance continues to grow as a core segment of the broader cryptocurrency world, driven by demand for transparent and accessible alternatives to traditional lending.
With its presale nearing completion, $17.6 million raised, and development milestones on schedule, Mutuum Finance is positioned to transition from concept to operational testing before the end of the year.
For more information about Mutuum Finance (MUTM) visit the links below:
Website: https://www.mutuum.com
Linktree: https://linktr.ee/mutuumfinance
Disclaimer: The information provided in this press release is not a solicitation for investment, nor is it intended as investment advice, financial advice, or trading advice. Investing involves risk, including the potential loss of capital. It is strongly recommended you practice due diligence, including consultation with a professional financial advisor, before investing in or trading cryptocurrency and securities. Neither the media platform nor the publisher shall be held responsible for any fraudulent activities, misrepresentations, or financial losses arising from the content of this press release.
