Circle has partnered with Aleo to launch USDCx, a privacy-oriented version of its stablecoin that conceals transaction history, Aleo co-founder Howard Wu said in a December 9 interview with Fortune. He said USDCx is designed to offer what he described as "bank-level privacy" for users' transactions on the Aleo network.

Address (0x8d0) bought ETH spot near $3115 in the past 3 hours on December 9 and opened 20x ETH long positions, according to HyperInsight. Its ETH spot holdings rose to 2004 ETH, and the long position average was $3125. The address also added 66.13 BTC spot, and both ETH and BTC spot were transferred cross-chain.

Binance Alpha will list Midnight (NIGHT), with trading scheduled to start at 17:00 (UTC+8) on Dec. 9, 2025, BlockBeats reported. Users holding at least 230 Alpha Points can initially claim 600 NIGHT, and if eligible users remain, the threshold will drop by 10 points every 5 minutes. Each claim consumes 15 Alpha Points and must be confirmed within 24 hours, or the allocation will be forfeited.

On December 9, Arkham launched Zcash on-chain monitoring, tagging 53% of transactions across protected and unprotected activity. The firm attributes $4200 亿美元 in transaction volume and 48% of all inputs and outputs to specific entities, and says 37% of balances have been marked, totaling 25 亿美元. These labels are linked to known individuals and institutions, and ZEC's price previously briefly surpassed $750 on its privacy narrative, according to BlockBeats.

OKX said in an official announcement it will open "闪赚" Midnight (NIGHT) at 16:00 (UTC+8) on Dec 9, totaling 4 亿枚 NIGHT, described as 10 倍 the project's airdrop. The campaign primarily targets OKB holders and supported asset users; subscriptions via OKB, USDT, BTC, ETH or ADA start at 约百 U, with caps increasing from regular users to VIP7+. Users can join in the OKX APP via the top-left "赚币与奖励" section and the 闪赚 page. Under Midnight (NIGHT) official rules, OKX will also distribute airdrops to ADA BTC ETH SOL XRP BNB AVAX and BAT holders, with the first-round total around 4000 万枚.

Active validators on Solana dropped from over 2,500 to about 800 between March 2023 and December 9, a decline of more than 68%, CriptoNoticias reported. Community opinion is divided, with some saying the removal of Sybil nodes benefits network health, while others, including some infrastructure teams, argue many of the recent departures are genuine operators exiting due to economics and operational costs. CriptoNoticias also noted that the impact on decentralization hinges on how many independent validators remain and how stake and voting power are distributed.

BTC OG insider whale address (0xb31) added a large ETH long at $3,120 in the past half hour on December 9, expanding its position from $155 million to $209 million with an average entry of $3,069, a liquidation price of $2,069, a floating profit of $3.8 million (9%), and 2,900 ETH remaining unfilled, according to Coinbob address data cited by BlockBeats. The address partially closed about $14.06 million of ETH longs at 00:00 today, and between the night of December 7 and the morning of December 8 it moved $70 million from Binance wallets to Hyperliquid before opening a 5x leveraged ETH long, described as the largest opening in the past 30 days by the same monitoring. On December 1, related addresses (0xf6f), (0xF74) and (0x411) cumulatively borrowed $220 million USDT from Aave and sent the funds to Binance wallets, with 0xf6f cumulatively collateralizing more than 126,000 ETH, and ETH that day touched a nearly 10-day low of about $2,718 before later rising, the monitoring showed. BlockBeats said BTC OG insider whale is a dormant 8-year BTC OG address that once held more than 50,000 BTC, whose activity has aligned with Trump remarks and U.S. policy moves, including a $500 million BTC short placed hours before the October 11 selloff that resulted in nearly $100 million in gains, and BitForex CEO Garrett Jin said the address is linked to his clients.

Whale address (0xfd2) deposited 4,933 ETH to Coinbase on December 9, worth about $15.32 million, The Data Nerd said. The ETH was accumulated around three years ago at an average price near $1,270. If realized, it estimates profit at about $9 million with a 144% ROI.

Address (0x968…0F305) bought 2226 ETH on-chain on December 9 over a three-hour period, totaling $6.95 million at an average price of $3121.52, according to on-chain analyst Ai 姨 (@ai_9684xtpa) cited by BlockBeats. Of these funds, 1100 ETH has been transferred to address (0x7b7…52814), the same source said.