According to the latter data from node monitoring resource Bitnodes, Tor-enabled Bitcoin (BTC) nodes are back to normal after a nearly complete crash in early January 2021. As of January 13, the number of accessible Tor-based BTC nodes was 2,581, up from just 122 nodes on January 9.

Based on Bitnodes data, Tor compatible Bitcoin nodes make up a significant portion of the Bitcoin network, normally accounting for around 25% of fully reachable active nodes. According to the latest recorded data, Tor-based nodes made up more than 23% of all BTC nodes on January 13.

According to Bitnodes, the current number of Bitcoin nodes is 11,190 nodes, up from about 8,300 on January 7.

The Bitcoin (BTC) the network is steadily recovering in terms of running BTC nodes after a major outage on the Tor network.

Number of reachable Bitcoin nodes in the last 90 days. Source: Bitnodes

A Bitcoin node is a computer that is connected to other computers to host and sync a copy of the entire Bitcoin blockchain and essentially keep the entire network running. Tor based Bitcoin nodes are a type of node implemented private using the anonymous Tor network.

The latest dip in Tor compatible BTC nodes is likely caused by a recent crash on the Tor network. The Tor Project was officially opened on January 10 announced that the Tor network was unstable due to an implementation error in its v3-ui service. Tech-focused news agency TechNadu reported that the outage was likely due to a hacker attack.

The downtimes in the Tor network subsequently affected a large number of Tor-enabled or so-called “ui” websites, including private Bitcoin wallets and exchanges such as Wasabi and Bisq. January 11 was Wasabi reported that it managed to keep its services intact with the help of a fallback system. “If the backend’s Tor-ui service is no longer available to the user, the wallet will revert to communication with the backend’s clearnet endpoint, still through Tor,” Wasabi wrote.