# Blockchain information

By [d1d](https://paragraph.com/@d1d) · 2021-12-20

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1.  Current, a financial services application, said that it would integrate ACALA, a Delphi platform based on Polkadot, into its core banking products. Trevor Marshall, chief technology officer of current, said in an interview that this is the first step to introduce in app defi tools for current 3 million users. Encrypted financial instruments for Multi Chain stable currency transfer and income agriculture may be added to current deposit, cash return and checking account functions later this year. At the same time, current will also join Polkadot's verifier set.
    
2.  On December 19, according to official news, grimfinance, a compound income platform on fantom chain, suffered a lightning loan attack, and the current loss has exceeded US $30 million. The attacker uses a function named "beforedeposit()" in the vault policy of grimfinance to attack and enter a malicious token contract. At present, grimfinance has suspended all vaults to remind users to withdraw all assets immediately.
    
    1.  The uniswap community has approved the governance proposal seeking to deploy the uniswap V3 contract on the polygon POS chain. The approval was obtained in the form of online voting, with more than 72.6 million users in the community participating. Uniswap labs announced that it would deploy the uniswap V3 contract according to the vote reflecting the approval consensus of more than 99.3%, and would receive financial support of US $20 million, US $15 million for long-term liquidity mining activities and US $5 million for the overall adoption of uniswap on polygon.
        
    2.  On December 19, according to a number of US media reports such as politico, US Democratic Senator manqin made it clear today that he opposed Biden's $1.75 trillion "bill to rebuild a better future". Since the Democratic Party and the Republican party currently hold 50 seats in the Senate, Manchin's vote will be related to whether the bill can be passed without the support of any Republican senator. Manchin's negative vote also means that Biden's bill will probably have to be postponed to January next year. The postponement of the plan will have a wide impact, even affecting next year's mid-term elections.

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*Originally published on [d1d](https://paragraph.com/@d1d/blockchain-information)*