Case 03/02. Skull ↔ steganography
Череп ↔ стеганография
Art
- Artist
- Hans Holbein the Younger
- Work
- The Ambassadors
- Year
- 1533
- Where
- National Gallery, London
A strange grey smear lies at the bottom of the state portrait. Stand at the right edge and it becomes a skull.
Code
steganography
Steganography hides the very fact of a message: text in the lowest bits of a photo, a mark in a sound file.
Action
Find the spot on the floor where the word becomes readable.
Найдите на полу точку, с которой читается слово.
The label in the room
The same hash is printed at the foot of the label. If they match, nobody changed the text.
Holbein's skull is visible from one spot only. Steganography hides a message the same way, in the lowest bits of a photo. Find the spot on the floor where the word appears.
Череп у Гольбейна виден только с одной точки. Стеганография прячет сообщение так же: в младших битах фото или в звуке. Найдите на полу точку, с которой читается слово.
SHA-256 of the Russian label text 5ddcc389a7ffa067180ebd6ca2a6d5e0115fd1bb02f375b90f9622ff075fc3ee
In the room
A reproduction and an anamorphic floor sticker with a word readable from one spot
Rights
Public domain