On December 10, 2025 in San Francisco, CARV launched Cashie 2.0 integrating the x402 protocol to convert social engagement into verifiable on-chain rewards, according to Chainwire. The upgrade positions Cashie as a programmable layer that links social activity to economic outcomes and adds CARV ID mapping, ERC-8004 agent tools, Base-ready facilitator endpoints, an AI-native API, and a $45,000 creator campaign.

On Monday, the American Federation of Teachers asked the Senate to withdraw the crypto market structure bill, warning it poses profound risks to pensions and the broader economy. The 1.8 million‑member union said the Responsible Financial Innovation Act lacks adequate safeguards for crypto assets and stablecoins and could open retirement plans to unsafe holdings. The measure was first introduced in 2022 and updated in September.

On December 3, Tajikistan’s parliament adopted Criminal Code amendments introduced by Attorney General Khabibullo Vokhidzoda, adding Article 253(2) to penalize crypto miners who use stolen electricity. Penalties include fines of $1,650 to $8,250 or imprisonment from two to five years, rising to five to eight years for especially large-scale violations. The bill will take effect after President Emomali Rahmon signs it.

On December 8, 2025, Rep. Keith Self criticized Republican leaders for leaving anti-CBDC language out of the US defense bill and filed an amendment on Tuesday to block a Federal Reserve digital dollar. The proposal would prohibit the Fed from developing or issuing a central bank digital currency and from holding direct consumer accounts, while carving out an exception for open, permissionless, private dollar-denominated currency.

On 8 December 2025, Binance founder Changpeng Zhao stated that a secure hardware wallet should never allow a private key to leave the device under any circumstances. He argued that making keys exportable undermines the fundamental purpose of self-custody, especially as more users move to non-custodial solutions in the current market cycle. His remarks, made in line with long-standing guidance from security practitioners, emphasized strict on-device key isolation as essential for protecting digital assets.

The National Hockey League has signed multiyear licensing agreements with prediction market platforms Kalshi and Polymarket, granting both the rights to use NHL trademarks, logos, and team names. The deals mark the first time a major US professional sports league has extended the same intellectual property terms to prediction markets that it provides to traditional sportsbooks like DraftKings and FanDuel.

Federal Reserve Governor Christopher Waller directed staff to explore granting stablecoin firms limited access to Fed payment systems through restricted master accounts. The proposed framework would enable direct settlement on central bank infrastructure without traditional banking intermediaries. Speaking at the Fed's inaugural payment innovation conference, Waller acknowledged that distributed ledgers and crypto-assets have become integral to mainstream financial infrastructure.

Coinbase launched Payments MCP on Wednesday, enabling AI models including Claude and Gemini to execute wallet operations, fiat conversions, and stablecoin transfers through natural language commands. The company also introduced its Coinbase One Card in the United States, offering bitcoin cashback rewards of up to 4% for subscribers.