Amber Group Targets Trust in Web3 Via Thoughtworks Partnership

Busan Introduces Blockchain-Powered Cards for Multi-Children Families to Offer Social BenefitsBusan Metropolitan City, home to South Korea’s largest port, announced on October 20 (local time) a revision in its criteria for “multi-children families” who enjoy social welfare benefits and the launch of new blockchain-powered cards for these families. The city will reduce the requisite number of children in these families from three to two to extend benefits and encourage a higher fertility rate. To qualify for these benefits, at least one child in the family must be under the age of 19.Photo by Minku Kang on UnsplashBlockchain integrationStarting October 31, eligible families can access these benefits through “family love cards,” which will be available on BPASS, a mobile identification card app developed with blockchain technology. Some of these family love cards will be issued in collaboration with credit card company Shinhan Card.Diverse benefitsThe benefits include discounts at public facilities, restaurants, cram schools (commonly referred to as hagwons), and daycare centers. Specifically, public parking lots and sports facilities will offer services at half the usual rate. Meanwhile, other establishments targeting adolescents and women will either waive their fees entirely or provide reductions.On November 1, Busan will host the 16th annual Multi-Children Family Day ceremony at the City Hall’s international conference center. Having started this event in 2008, Busan stands out as the only metropolitan municipality to celebrate this occasion each year.Efforts to boost fertility rateThis year’s ceremony will highlight Busan’s initiatives to enhance support for multi-child families. The event will honor outstanding families and a childbirth-friendly organization, as well as districts and counties that have been exceptional in implementing childbirth promotion policies. Additionally, the occasion will be marked by special commemorative performances.Busan Mayor Park Heong-joon affirmed the city’s dedication to nurturing children alongside their families. He added that Busan will persistently refine and improve its childbirth policies to offer full support.

Leading crypto exchange OKX has announced the seamless integration of Uniswap Labs' application programming interface (API) into its decentralized exchange (DEX). The objective of the Uniswap addition is to usher in an era of gas-free trading through its innovative feature called "Snap” for OKX service users. Snap trading modeThe company made the announcement by way of a PR Newswire press release on Feb. 29. OKX asserts that Uniswap is one of the most trusted names in DeFi. As part of the integration, the Snap trading mode will be included as a feature on OKX DEX, with the objective of aggregating Uniswap’s liquidity.The feature operates directly on the OKX DEX interface by way of the UniswapX protocol. UniswapX is an immutable smart contract built with the intention to be fully permissionless. The contract cannot be modified or paused by anyone, including Uniswap Labs. Liquidity providers pay the feeIn explaining away the technology, Jason Lau, the chief innovation officer at OKX told Cointelegraph the mechanics behind the no-fee swaps. Lau unveiled a novel model wherein liquidity providers absorb transaction fees on behalf of users. He asserted that this approach not only enhances convenience but also facilitates cost savings for traders. Lau elaborated further, stating: “By agreeing to a price and signing a transaction off-chain, then settling the transaction on-chain, users end up paying no gas fees because the liquidity providers will pay the fee on the user’s behalf.”Photo by Shubham Dhage on UnsplashGoing beyond trading fee reductionAnticipating a positive response from DeFi enthusiasts, Lau highlighted additional features that go beyond transaction fee savings. These include the elimination of slippages, maximum extractable value (MEV) bot attacks and transaction failures, addressing prevalent concerns within the DeFi space.In tandem with the gas-free trading initiative, OKX announced a seamless integration for its wallet users within the Uniswap interface, courtesy of the Multi-Injected Provider Discovery upgrade on Ethereum, based on Ethereum Improvement Proposal (EIP)-6963. This enhancement extends to all browser extension wallets, enabling OKX wallet users to seamlessly connect with Uniswap, facilitating activities such as cryptocurrency swapping, NFT trading, liquidity pool participation and decentralized application (dApp) development. Positioning this integration as a pivotal addition to their ecosystem, Lau reiterated OKX's commitment to broadening user access to diverse on-chain use cases. He expressed enthusiasm for ongoing development initiatives and urged users to actively contribute feedback for further enhancements. The crypto exchange platform achieved further technical progress recently, with the addition of support for atomicals, runes, doginals and stamps to its Web3 wallet. Providing further detail on these additions last month, the company said that they were part of a "first-to-market" initiative relative to Bitcoin NFTs. Alongside technical advancements like these, earlier this week it emerged that the company was further advancing its market expansion strategy, through the launch of OKX TR, its Turkish platform. With OKX pioneering gas-free trading and bolstering user accessibility to decentralized finance, the convergence of traditional finance and blockchain technology accelerates, indicating an ongoing transformative shift in the crypto space.

Bank of Japan Publishes Results of CBDC PoCThe Bank of Japan (BoJ) recently concluded the second phase of its central bank digital currency (CBDC) proof of concept (PoC) project, which began in April. The results of this phase were published on Monday, and they shed light on key aspects such as the comparison between account-based and token-based CBDCs and the management of holding limits for users with multiple accounts.Photo by Manuel Cosentino on UnsplashToken-based CBDCsThe experiments conducted by the central bank covered a wide range of topics. Among the most intriguing findings were the advantages and disadvantages of token-based CBDCs and how to effectively impose holding limits for users with multiple CBDC balances.Token-based CBDCs have garnered interest from various central banks, with some adopting the UTXO token model used by Bitcoin without the use of a distributed ledger. A UTXO or unspent transaction output, defines where a blockchain transaction starts and finishes. The Bank of Japan explored this model and analyzed its pros and cons.In the initial proof of concept, both account-based and token-based CBDCs were examined, considering scenarios where the central bank managed the ledger or shared it with intermediaries like banks. In the token-based model, fixed token denominations were used, similar to physical cash in countries like India, and a centralized ledger was employed. However, in the recent phase, the central bank utilized flexible value tokens similar to UTXO and shared ledger functions with intermediaries.The Bank of Japan favored the flexible value token model due to its ability to handle multiple requests simultaneously. However, it acknowledged that this model may require more technical resources compared to the account-based approach. Challenges may arise when implementing additional functions, such as holding limits, while maintaining optimal performance. The European Central Bank (ECB) also noted in a recent report that most payment providers are accustomed to account-based payments and would incur costs to adapt to token-based systems.Another significant aspect explored by the BoJ was how to impose holding limits when users have multiple CBDC balances through different intermediaries. The challenge lies in determining if the overall holding limit has been breached without compromising user privacy.Homomorphic encryptionOne possible solution discussed in the report is the use of homomorphic encryption, which enables computations to be performed on encrypted data without it first needing to be decrypted. That allows for the necessary checks without intermediaries accessing the specific data being checked. Although this solution may slightly increase processing time, it could introduce a higher risk of data inconsistencies.Alternatively, a simpler approach proposed by the central bank is to establish a per-account holding limit and a limit on the number of accounts a single user can hold, rather than imposing global limits. Ideally, users with multiple accounts would have a higher per-account holding limit compared to those with fewer accounts.Phase 3 underwayWith the next pilot phase already underway, the BoJ aims to test the end-to-end process flow and identify challenges related to integrating with external systems. Additionally, they are creating a CBDC Forum to gather input from the private sector, ensuring a collaborative approach to CBDC development.While investigation and research into CBDCs continues, the BoJ has said that it will make a final decision on CBDC implementation by 2026.