According to PANews, Polkadot's economic model is set to follow a clear and predictable long-term path following the approval of the WFC #1710 (Hard Pressure) proposal. This development marks the first time Polkadot has established such a defined trajectory. The core elements of this path include a total supply cap of 2.1 billion DOT, a biennial reduction in annual issuance, and a decrease rate of 13.14% of the remaining issuance each time. Under the Hard Pressure model, starting from March 14, 2026, Polkadot's annual issuance will officially begin to decline, with the first reduction corresponding to an annual inflation rate of approximately 3.11%.

Upbit 发布公告称，已将 FLOW 列为交易警告品种（Investment Warning），该决定由韩国数字资产交易所联合协商体 DAXA 成员共同作出。交易警告品种指定期限为 2025 年 12 月 29 日 14:00（KST）至 2026 年 1 月 14 日 23:59（KST）。Upbit 表示，根据数字资产交易支持相关指引，在综合考虑 FLOW 发生黑客攻击等安全事件、可能对用户造成损失的风险后，基于投资者保护原则作出上述决定。指定期间内，Upbit 将对 FLOW 是否延长注意品种状态、解除指定或最终终止交易支持进行进一步审查，若相关风险未能充分消除，可能作出终止交易支持的决定。公告同时指出，FLOW 的充值与提现服务此前已于 2025 年 12 月 27 日 20:58（KST）暂停。后续若恢复服务，将仅先行恢复提现功能，充值功能是否重启将依据交易注意品种后续审查流程另行公告。Upbit 提醒用户，交易注意品种指定后产生的所有充值将不予入账并进入退回流程。

随着海南岛进入封关运作阶段，海南自贸港在整体定位上将与香港形成互补而非竞争关系。报道指出，海南的核心优势在于背靠中国这一全球第二大经济体，具备更大的物理空间与腹地市场，而香港仍将侧重全球贸易与国际金融中心职能。在金融功能布局方面，监管层将推动差异化发展。财新援引相关表述称，比特币、稳定币等金融创新与“试验田”更可能继续放在香港推进，而不会布局在海南。海南自贸港则更多承担面向国内外市场的节点与枢纽角色，在金融领域与香港形成错位协同。（财新网）

Bitcoin led a sharp rise in SEC crypto filings during 2025 as clearer US rules pushed institutions toward regulated digital asset products. source: https://catenaa.com/markets/cryptocurrencies/bitcoin-drives-record-sec-filings-surge-in-2025/

According to ChainCatcher, Strategy Executive Chairman Michael Saylor shared a screenshot of the latest asset dashboard on the X platform, captioned 'Back to Orange.' The chart released by Saylor indicates that as of December 15, following recent acquisitions, Strategy holds a total of 671,268 BTC, with a total Bitcoin book value of approximately $58.9 billion. The company's stock price corresponding to mNAV has dropped to nearly or slightly below the 1x range, suggesting that the stock price is almost equivalent to, or occasionally below, the fair value of its Bitcoin holdings. Bitcoin enthusiast and author of 'The Great Harvest,' Adam Livingston, interpreted the data, suggesting that a significant BTC purchase is imminent. He predicts that Bitcoin's annual yield for 2025 will conclude at around 25%. The current 'floor price' for 1x mNAV has risen to $148.40 per share, a substantial increase from $118.00 per share a year ago.

According to Odaily, CoinDesk reported on the X platform that Polymarket and Kalshi achieved their best performance in history in 2025. The combined trading volume of the two companies approached $40 billion, and both companies reached valuations in the billions of dollars.

According to ChainCatcher, the USD/JPY exchange rate experienced a short-term drop of nearly 40 points, with the latest report indicating a rate of 156.08.

According to BlockBeats, recent market data indicates a sharp decline in spot gold and silver prices. Spot gold fell below $4,500 per ounce, marking a 0.82% decrease for the day. Meanwhile, spot silver erased its intraday gains of over 6%, closing at $77.7 per ounce, and shifted from gains to a 1.58% decline.

According to the announcement from Binance, the platform is introducing a new Word of the Day (WOTD) game, focusing on the theme of 'Copy Trading' for the week. This educational initiative aims to enhance users' cryptocurrency vocabulary while keeping them informed about market trends. The activity period is set from 2025-12-29 00:00 (UTC) to 2026-01-04 23:59 (UTC), during which participants can compete for a share of 400,000 HOME token vouchers. Participants can engage in up to two WOTD games daily, testing their knowledge on the specified topic. To qualify for the rewards, users must correctly answer three questions throughout the activity period. Each eligible participant will receive an equal share of the token vouchers, with a maximum reward of 80 HOME per winner. To access the second game of the day, users need to click the 'Get A New WOTD' button after completing the first game and share a selected article on social media. The second game becomes available once the shared link is clicked by a third party. Additionally, new users registering with the 'WOTD2025' referral code during the activity period will receive a 10% discount on Spot trading fees. They may also earn additional rewards by completing tasks in the Rewards Hub within 14 days of registration. Binance emphasizes that the WOTD game may not be accessible in all regions, and only verified users from eligible areas can participate. All token rewards will be distributed within two weeks after the activity concludes. Binance retains the right to modify or cancel the promotion at any time and disqualify participants involved in fraudulent activities or violations of platform terms.

According to ChainCatcher, Tokyo-based cryptocurrency rewards platform SocialGood has announced the completion of its Series B funding round, raising ¥880 million (approximately $5.63 million). This brings the company's total funding to ¥2.4 billion (around $15.35 million). The latest funding was secured through a third-party allocation of shares, involving investors such as i-nest capital Co., Ltd., and through loans. SocialGood plans to use the new capital to strengthen its internal management and governance structures. SocialGood's platform aggregates e-commerce sites like eBay, Walmart, and Booking.com, as well as mobile games such as 'Rise of Kingdoms' and 'Ball Sort.' Users can accumulate cryptocurrency rewards, including Bitcoin, by purchasing goods or services through the platform.

Global online interest in cryptocurrencies has fallen to its lowest levels as we approach the new year, with Google search data signaling a sharp pullback in retail attention as the market heads into 2026.

The Atlas memecoin, themed around US Vice President JD Vance’s pet dog, has nearly half of its supply controlled by 68 wallets showing signs of coordinated buying and potential insider activity. The token was heavily promoted by the influencer Whale Insider, raising concerns that retail investors could be at risk from price manipulation.

Grok, Elon Musk’s AI chatbot on X, has been praised by Vitalik Buterin for giving unpredictable responses that challenge users’ political biases and promote more truthful interactions.

A massive hack has struck Trust Wallet, one of the most widely used crypto wallets, resulting in estimated losses exceeding $6 million.

Italy’s competition authority has ordered Meta to allow rival AI chatbots on WhatsApp while investigating possible abuse of its dominant position. Meta plans to appeal, saying the policy protects its systems, but regulators worry it could limit competition and innovation in the AI market.

Nvidia has announced a $20 billion acquisition of Groq’s core assets, a landmark move that strengthens its already commanding position in the artificial intelligence chip market and reshapes the competitive landscape for AI infrastructure.

Keonne Rodriguez, co-founder of Samourai Wallet, began serving a five-year federal prison sentence and shared a personal account of his first days, describing the intake process and adjusting to prison life just before Christmas.

The Philippines has escalated its crackdown on unlicensed cryptocurrency platforms, with internet service providers beginning to block access to major global exchanges, signaling a decisive shift toward stricter enforcement of local crypto regulations.

Pudgy Penguins projected its animated characters on the Las Vegas Sphere for a week-long holiday campaign, promoting its physical products rather than NFTs. The display helped the crypto-born brand reach mainstream audiences, supporting merchandise sales and boosting recognition despite a struggling NFT market.

Kraken has officially launched the Krak Card, a Mastercard crypto debit card for residents living in the EU countries and the United Kingdom. The Krak card would allow users to spend more than 400 cryptocurrencies and fiat currencies seamlessly.