A U.S. government-controlled account, holding nearly $2 billion worth of Bitcoin seized from the now-defunct dark web marketplace Silk Road, initiated a series of transactions on Tuesday, sparking speculation about a potential sale of these digital assets, according to reports from multiple blockchain analytics firms.

The account conducted a minor transaction of around $65 to a deposit address at Coinbase Global Inc.’s Coinbase Prime unit, as observed by Arkham Intelligence Inc.

On the whole, transfers totaling approximately $131 million were recorded going to Coinbase on Tuesday, with a significant portion of these funds then redirected to other addresses associated with the U.S. government, as per the firm’s analysis.

Analysts noted that the $65 transaction appeared to be a test transaction from the U.S. government.

“The small amount is being sent to Coinbase Prime, while the large amount is being credited back to the U.S. government as a ‘change output.’ Most likely, they will follow up by sending a larger (possibly the full) amount to Coinbase Prime, having confirmed the test transaction arrived at its intended destination.”

Subsequent transactions showed approximately 2,000 Bitcoin being consolidated from various government addresses and transferred to Coinbase, according to Flipside Crypto.

While digital wallets generally maintain anonymity, these transactions are closely monitored by market participants due to their potential impact on Bitcoin’s market price.

The U.S. government has previously sold portions of its Silk Road Bitcoin holdings, often through auctions. The account involved in Tuesday’s transactions originally held 30,174 Bitcoin.

The Silk Road platform, shut down by the government in 2013, allowed users to purchase illicit goods such as narcotics and counterfeit documents using BTC.

At the time of the platform’s closure, federal agents seized Bitcoin valued at $3.6 million, a figure that has since soared to billions of dollars due to the cryptocurrency’s surge in value.