Skip to content
Anatomi RupiahID· Language

3D — Dilihat, Diraba, Diterawang

The three steps Bank Indonesia teaches, and the physical reason behind each. The order is arranged to need no equipment at all: eyes, then fingers, then a window.

If you have a Rp100,000 note (TE 2022) in hand, this is exactly what you would find at this step — not the general rule, but that one denomination, start to finish.

  1. Step one

    Dilihat — look

    Hold the note in ordinary light and tilt it slowly. Watch for areas whose colour moves with your angle.

    Features checked at this step

    On this note

  2. Step two

    Diraba — feel

    Run a fingertip over the main image, the numerals, and the edges of the sheet. You are looking for surfaces that feel rough and raised.

    Features checked at this step

    On this note

  3. Step three

    Diterawang — hold to light

    Lift the note towards the light. What appears, appears because light passes through the material rather than bouncing off it.

    Features checked at this step

    On this note

Beyond the three

The fourth channel

Some features sit outside 3D because they need equipment: elements visible only under ultraviolet light, and features read by counting machines. Bank Indonesia built 3D from checks anyone can make, anywhere, carrying nothing.

On this note

After the three steps

This site draws no conclusion about any particular note, and never will. If something troubles you, take the note to a bank or to a Bank Indonesia office. The authority to determine whether Rupiah is genuine rests with Bank Indonesia.

One step cannot be done here

Diraba is a check made with a fingertip. A screen has no texture; a phone’s vibration does not imitate raised printing, and an animation would only teach the wrong thing. This site describes what to feel for, and then stops.

Diraba tidak bisa lewat layar. Ambil uangnya, rasakan cetakan timbulnya.