3e a minimal black line tattoo design of a heartbeat ecg pulse line with the number 226922 integrated in the center2c and below it in small persian calligraphy the text 22daa9d984d8a8 d8b2db8cd986d8a822. clean lines2c black ink only2c simple composition2c suitable for forearm tattoo2c vector style. tattoo idea - made by Ink Studio AI