Press Release
Lumino Ceremony: Building the Privacy Protection Infrastructure
PlatON, a privacy AI computing network which is committed to building a decentralized collaborative artificial intelligence network and global brain, is promoting the democratization of artificial intelligence and establishing a secure general artificial intelligence. The bottom layer of its decentralized privacy protection infrastructure is based on Zero-Knowledge Proof.
What is Zero-Knowledge Proof
Zero-Knowledge Proof is a cryptographic technology to realize privacy protection authentication. The prover needs to make the verifier believe that he knows or owns a message, without disclosing any information about message which is to be confirmed. For example, if the prover wants to prove that he knows the safe box password without revealing it, he can just show some items existing in the safe box that everyone knows.
This process is Zero-Knowledge Proof. The proof needs an initial credible setting (some items existing in the safe box that everyone knows), namely a series of public parameters to help the prover build Zero-Knowledge Proof.
Deficiency of Zero-Knowledge Proof
As a cryptographic technology with both privacy protection and authentication capability, zero-knowledge proof is widely used to realize transaction verification under hidden business details in blockchain. The zero-knowledge proof system applied in the blockchain field is mainly a cryptographic algorithm called “zk-SNARKs”. At present, the existing classic zk-SNARKs algorithms include GGPR13, PGHR13, Groth16, GM17, and new generation algorithms such as Sonic, Marlin, Plonk, which support updating public parameters. The current version of ZCash, a well-known private cryptographic currency, uses Groth16 algorithm.
From the above “safe box”, we can see that the premise for the correct operation of this kind of algorithm is existing a series of random trusted parameters. However, randomized parameters will not come out of thin air and there is no trusted third party in the blockchain. Parameters created by centralized third parties can be reconstructed in theory, and it is possible to forge proofs, which may destroy the underlying security in PlatON. Imagine that if a specific institution informed the verifier of the storage of the items in the safe box, the institution and the prover could collude and use this secret information to falsify the illusion that the prover knew the safe box password.
Therefore, it is an undoubtedly excellent idea to organize multiple participants to create these randomized parameters through Secure Multi-party Computation. In this process, single party can not reconstruct the parameters any more. Only when this activity is completed safely will the subsequent decentralized application be safe. In fact, ZCash has successfully created system parameters for Groth16 algorithm in November 2017 through its ceremony, Power of Tau.
Lumino, creating secure parameters
In order to prevent the parameters generated by the centralized mode from affecting the underlying security, PlatON started the Secure Multi-party Computation ceremony Lumino on June 21, 2021, last for 60 days. This ceremony is expected to create necessary secure parameters for the Zero-Knowledge Proof protocol.
During the Lumino ceremony, multiple participants carry out several rounds of calculation in the form of a relay, that is to say, the current participant need to use the calculation results of the previous participant as the input of this round, and the calculation output become the calculation input of the next participant as well. After a certain number of rounds, the output of the last participant is the final result of the whole ceremony, namely the system initialization parameters that Plonk thatalgorithm of PlatON will choose. Obviously, the more participants take part in the ceremony, the safer the parameters will be.
As a practical and efficient Zero-Knowledge Proof algorithm, Plonk is commonly used in PlatON projects and communities, which is characterized by a one-time initialization process, that is, running once can be used to deploy multiple applications. Providing necessary initialization parameters for Plonk algorithm through Lumino ceremony means that no one can master the secret information behind the parameters, which can be used to cheat players in the whole system. Lumino ceremony will lay a solid foundation for the security of PlatON.
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Disclaimer: The views, suggestions, and opinions expressed here are the sole responsibility of the experts. No Digi Observer journalist was involved in the writing and production of this article.
Press Release
United Network Redefines Self-Custody with a Next Gen Cold Wallet
United Network Wallet at TOKEN2049 in Singapore might be the biggest crypto festival to date! As their team takes a moment to unwind and reflect, they are sharing some quick highlights from United Network’s journey at the event.

For more than a decade, crypto has promised financial freedom — but for most people, securely storing their digital assets still feels like a trap. Keep funds on a smartphone wallet, and one hack or malware attack can wipe everything out. Trust an exchange, and one risk’s waking up to headlines about bankruptcies or frozen withdrawals. They’ve all seen what can go wrong — from the dramatic FTX collapse to billions lost in exchange hacks each year.
In 2024 alone, over $2.2 billion worth of crypto was stolen, according to Chainalysis. The first half of 2025 already surpassed that figure, including what experts called the largest centralized exchange hack in history. If trends continue, global losses could exceed $4 billion in 2026. These numbers tell a clear story: centralized custody is not real ownership. When one’s crypto sits on an exchange, it’s not truly one’s — it’s just a number in someone else’s database.
The Hardware Wallet Dilemma: In theory, hardware wallets were designed to solve this — giving users full control of their keys. But let’s be honest: for many, setting up a traditional hardware wallet still feels like rocket science. Seed phrases, firmware updates, and confusing interfaces scare away regular users. Many investors who made millions in early Bitcoin days admit they have no idea how to safely manage or even access those funds today.
The result? People end up leaving their coins on exchanges “for convenience,” hoping for the best. But as they learned from FTX and countless hacks before and after it, convenience without control is an illusion.
United Network’s Approach: A Cold Wallet That Feels Familiar:
United Network is reimagining self-custody from the ground up — by making it as intuitive as tap-to-pay. Instead of clunky devices or cables, their hardware wallet takes the familiar form of a bank card. It’s a multichain, non-custodial cold wallet that supports native Bitcoin, Solana, EVM networks, Tron (TVM), and more.
To send, receive, or swap crypto, users simply tap the card on their smartphone, just like making a contactless payment. Behind that simplicity is serious cryptographic engineering: the private key is generated and stored only inside the card’s secure chip — and it never leaves.
According to co-founder Danylo Rumiantsev, “Each time you tap to sign a transaction, it’s verified directly by the chip — not through any server or backend. That means no data leaves your card, and no one else can access your funds.” The chip is the same kind used in certified banking systems, and communications between the phone and card are encrypted using the FIDO protocol for maximum protection.
Why Cold Wallets Matter More Than Ever
Cold wallets — meaning devices that keep private keys offline — have always been the safest way to store crypto. Unlike software wallets that can be compromised through malware or phishing, or exchanges that can collapse overnight, United Network’s Cold Wallet give’s one true ownership and sovereignty over one’s funds.
The FTX disaster was the wake-up call for millions. When the exchange froze customer withdrawals and later collapsed, billions in deposits vanished overnight. None of those users technically “owned” their crypto — the exchange did. With United Network’s approach, ownership finally means control — without needing to understand complex cryptography or hardware setup guides.
From Complexity to Simplicity: United Network’s co-founder, Danylo Rumiantsev isn’t a newcomer to hardware security. His previous work in secure product design taught them how hard it is to make security usable. When he turned his attention to blockchain, he saw the same problem: tools that promised safety but alienated normal users.
“We live in times where users want everything simple and transparent,” says Rumiantsev. “If crypto is to achieve mass adoption, people shouldn’t need to be experts to stay safe.” Watch Backstory of United Network Self Custody Cold Wallet on Video link here from Danylo Rumiantsev. That insight inspired the company’s guiding principle: combine security, self-custody, and accessibility into one elegant form factor. No cables. No apps to install. No backend servers to trust. Just a card — secure, portable, and as easy to use as one’s debit card.
A New Standard for Self-Custody United Network’s Cold Wallet isn’t just for individuals. The startup also offers white-label solutions for institutions and enterprises that want to provide secure, branded digital asset storage to their clients.
With its mix of simplicity, transparency, and independence, United Network may represent the next step in crypto’s evolution — one where security and usability finally meet.
The wallet is now available for worldwide shipping, with expanded network support and new user-friendly features planned for the coming months.
Because at the end of the day, crypto’s promise was never about speculation — it was about sovereignty. And sovereignty begins with self-custody. Click here for stay in touch with them over Twitter (X) for the latest updates from United Network Wallet including the Wallet Activation Guide shared at Token2049 Event in Singapore dated 1 & 2nd October, 2025. The United Network Wallet is a hardware NFC wallet card that lets the one securely store his assets in full self-custody.
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Press Release
Firenze Rentals Welcomes International Travelers Seeking Home Comfort in Florence
Florence continues to attract travelers from around the world who are eager to explore its art, architecture, food, and culture. Many visitors come to Florence not only to see museums and historic landmarks but to truly experience the lifestyle of the city. In recent years, there has been a noticeable shift in how travelers prefer to stay. Instead of choosing traditional hotels, more guests are now looking for accommodation that offers comfort, privacy, and a sense of home.
This shift is especially visible in the rising popularity of firenze rentals florence, where visitors book luxury apartments close to famous attractions. Travelers from the USA, Australia, and various European countries are increasingly selecting beautifully furnished apartments that allow them to feel like locals while still enjoying high-quality hospitality services. The desire for more personal and spacious accommodation has encouraged more people to look for stays that combine convenience with authentic charm.

Many travelers value having their own space where they can relax after a day of walking through museums, historic streets, and cultural sites. Luxury apartments offer separate bedrooms, comfortable living spaces, and fully equipped kitchens, making them ideal for longer stays or family trips. Guests are able to cook meals, enjoy coffee with city views, and create everyday routines in a new environment—experiences that standard hotel rooms often cannot provide. This type of stay also helps visitors create stronger connections with the city and its daily rhythm.
Firenze Rentals offers a wide variety of apartments across different areas of central Florence. Properties range from cozy studios for one or two guests to larger multi-bedroom apartments and even private villas suitable for families or groups. For example, Villa Angela offers a peaceful and spacious setting close to Florence’s highlights, while apartments near the Duomo and Ponte Vecchio provide unforgettable views and immediate access to historic streets and cultural sites. Each apartment is decorated with care, blending traditional Florentine design with modern details to ensure comfort and style.
Guests also benefit from helpful support during their stay. Firenze Rentals assists travelers with recommendations for restaurants, local activities, guided tours, and transportation options. Some guests choose to explore Florence on foot, while others enjoy curated tours that introduce hidden corners of the city. To make stays even more attractive, the company offers a special 10% discount for guests who book directly using the code “Firenzerentals.”
About Firenze Rentals
Firenze Rentals is a trusted company in Florence that focuses on providing luxury apartments designed for international travelers. The company’s mission is to offer guests a comfortable and welcoming home base as they explore the beauty and culture of Florence. With a focus on elegance, convenience, and personalized service, Firenze Rentals continues to be a trusted choice for visitors wanting a memorable and enjoyable stay in the heart of the city.
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The post Firenze Rentals Welcomes International Travelers Seeking Home Comfort in Florence appeared first on King Newswire. This content is provided by a third-party source.. King Newswire makes no warranties or representations in connection with it. King Newswire is a press release distribution agency and does not endorse or verify the claims made in this release. If you have any complaints or copyright concerns related to this article, please contact the company listed in the ‘Media Contact’ section
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Press Release
Villa Angela Firenze Becomes the Premier Destination for Exclusive Events and Private Stays
Florence, Italy – Villa Angela, also known as Villa Firenze, continues to redefine luxury hospitality with its unique blend of history, elegance, and personalized experiences in the heart of Florence. Nestled in the San Niccolò district of Oltrarno, this exclusive villa has become a sought-after destination for travelers from the USA, Canada, Australia, and Europe who seek a refined and private retreat in one of Italy’s most iconic cities. Protected by the medieval walls and located just minutes from the Ponte Vecchio, Villa Angela offers an unmatched combination of accessibility, privacy, and historical charm.

Villa Angela Firenze has emerged as a symbol of refined Italian hospitality, offering guests an immersive experience that merges comfort with cultural authenticity. The villa’s unique position on the hillside at the foot of Forte Belvedere allows visitors to enjoy panoramic views of Florence, while its luxurious interiors and expansive gardens provide a tranquil oasis for relaxation and recreation. With four elegantly appointed bedrooms, spacious living areas, and meticulously maintained gardens featuring ancient roses, camellias, and irises, Villa Angela Firenze offers a setting that is both intimate and grand. Its versatile spaces accommodate private vacations, exclusive events, and high-profile gatherings, making it a distinguished choice among luxury travelers and event planners alike.
The villa has long served as a cosmopolitan gathering point, attracting a diverse clientele from across the globe. Guests can host private parties, weddings, fashion shows, exhibitions, and film shoots, all within the secure and enchanting surroundings of the property. The villa’s team works closely with visitors to personalize every detail of their stay, ensuring a seamless experience from arrival to departure. Its ability to cater to bespoke requests has established Villa Angela Firenze as a premier destination for those seeking both sophistication and discretion.
In addition to its traditional offerings, Villa Angela provides a 360-degree virtual tour, enabling potential guests to explore the property from anywhere in the world. This innovative approach reflects the villa’s commitment to merging modern technology with historical charm, ensuring that even the most discerning travelers can experience its unique ambiance before arrival. Visitors can envision themselves walking through the lush gardens, enjoying panoramic terrace views, or hosting elegant events in the villa’s versatile spaces.
About Villa Angela
Villa Angela Firenze continues to attract attention from international media and travel enthusiasts, further cementing its status as one of Florence’s premier luxury villas. Its dedication to excellence, combined with a deep respect for the city’s heritage, ensures that every guest enjoys a memorable experience marked by elegance, comfort, and exclusivity. As Florence remains a top destination for cultural tourism, Villa Angela offers an unparalleled option for those seeking privacy, sophistication, and personalized service in one of the world’s most celebrated cities.
Media Contact
Organization: Villa Angela Firenze
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The post Villa Angela Firenze Becomes the Premier Destination for Exclusive Events and Private Stays appeared first on King Newswire. This content is provided by a third-party source.. King Newswire makes no warranties or representations in connection with it. King Newswire is a press release distribution agency and does not endorse or verify the claims made in this release. If you have any complaints or copyright concerns related to this article, please contact the company listed in the ‘Media Contact’ section
About Author
Disclaimer: The views, suggestions, and opinions expressed here are the sole responsibility of the experts. No Digi Observer journalist was involved in the writing and production of this article.
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