Example of a multichannel (four channel) and multipixel (five pixels) event clustered from individual brightenings into a single nanoflare using the algorithm described in the main text. The left panel illustrates the overlap of brightenings in time. The right panel shows the pixel spatial distribution. The event is not typical and was chosen only to demonstrate the method (single-pixel and single-channel events dominate the nanoflares studied here). Brightening in different channels can also occur in the same pixel.