POSCO International issued Korea's first non-financial blockchain digital bond (about 1.4 trillion KRW) with HSBC as lead underwriter, cutting settlement to three days. Abstract: POSCO International issued a blockchain-based digital bond in a private placement of about 1.4 trillion KRW, with HSBC as sole lead underwriter, marking the first such issue by a South Korean non-financial company and the second digital bond in the country after Mirae Asset Securities. The bond uses blockchain for issuance, registration, trading, and settlement, offering enhanced security, faster settlement, and broader global investor access (three-day settlement vs. five). This follows POSCO’s prior blockchain-based payment system deployment and aligns with Hong Kong's subsidy program to promote digital bonds. POSCO and HSBC plan further collaboration in blockchain, digital finance, and transformation, including potential STO market participation.

Perplexity uses SFT followed by RL with Qwen3.5 models, leveraging a multi-hop QA dataset and rubric checks to boost search accuracy and efficiency, achieving best-in-class FRAMES performance. Abstract: Perplexity's post-training workflow for web-search agents combines supervised fine-tuning (SFT) to enforce instruction-following and language consistency with online reinforcement learning (RL) via the GRPO algorithm. The RL stage uses a proprietary multi-hop verifiable QA dataset and rubric-based conversational data to prevent SFT drift, with reward gating and within-group efficiency penalties. Evaluation shows Qwen3.5-397B-SFT-RL achieving top FRAMES performance, 57.3% accuracy with a single tool call and 73.9% with four calls at $0.02 per query, outperforming GPT-5.4 and Claude Sonnet 4.6 on these metrics. Pricing is API-based and excludes caching.

Fiuu launches Apple Tap to Pay on iPhone in Malaysia, turning iPhones into payment terminals for in-person contactless payments, boosting payments across 8 markets and 110 methods, with Singapore rollout and expansion plans. Abstract: Fiuu, Malaysia's leading payment gateway formerly known as Razer Merchant Services, has introduced Apple Tap to Pay on iPhone, enabling merchants to accept contactless payments without separate card readers. The rollout covers eight markets with support for over 110 payment methods, following a Singapore launch in December 2025. The company plans to expand direct acquiring for JCB and UnionPay and extend Visa installment options to Singapore, positioning iPhone-based terminals to compete with traditional readers and platforms like HitPay, and enabling payments outside fixed checkout locations to reduce costs for pop-ups and deliveries.

Jupiter launches Prediction Bot on Telegram with Clans, enabling team-based discussion and social competition for collaborative trading in the Telegram ecosystem.

Gate News message, April 23 — Toss (operated by Viva Republic) announced on April 23 that it has signed a memorandum of understanding with Korea Minting Service to jointly develop blockchain-based payment infrastructure. The agreement, signed on April 22 at Toss's Seoul headquarters, aims to

Pornhub swapped creator payouts from USDT to USDC, citing reliability and MiCA compliance; older USDT-PayPal ties and TronLink-based partnerships have been removed. Abstract: Pornhub replaced USDT payouts with USDC for creators, arguing USDC is more reliable and MiCA-compliant. The move ends PayPal-USDT ties and TronLink-based payment infrastructure, and those partnerships were removed from the creator payment page.

Gate News message, April 23 — Singapore-based jeweler Mustafa Gold has partnered with asset management firm FundBridge Capital and tokenization platform Libeara to launch MG999, a yield-bearing digital token that tracks gold prices. The token provides investors with gold exposure while generating re

Kalshi taps Pyth as data provider for Commodities Hub, launching binary-event markets on oil, lithium, soybeans, with dozens of live contracts; emphasizes 24/7 price discovery beyond traditional exchanges. Abstract: Kalshi has named Pyth, a crypto oracle, as the data provider for its newly launched Commodities Hub, enabling event-based contracts on major commodities. Dozens of markets cover price moves in Brent, lithium, soybeans, and more, with binary bets on rising or falling prices. The platform argues that 24/7 price discovery is increasingly essential as geopolitical events unfold outside traditional exchange hours.

360 Digital Security's AI-driven agent claims to have found about 1,000 new vulnerabilities, including in Office and OpenClaw; AI now core to discovery and exploit-chain prep, rivaling Mythos. Abstract: A Bloomberg-cited report notes that 360 Digital Security Group’s AI-driven Vulnerability Discovery Agent identified nearly 1,000 previously unknown vulnerabilities in recent months, including in Microsoft Office and the OpenClaw framework. The firm says AI has become the core engine of vulnerability discovery and has announced an AI tool to accelerate exploit-chain construction. Benincasa characterizes 360 as a competitor to Anthropic’s Mythos, based on Natto Thoughts’ review of the company’s Chinese-language announcements.

Gate News message, April 22 — Gensyn, a decentralized AI infrastructure network backed by a16z crypto, launched its flagship product Delphi, an AI-settled information market platform that allows anyone to create markets and earn fees based on trading volume. Market creators pre-select fixed-weight