Who can decipher this graffiti?

A London artist presents numerous graffiti on a website, each showing a binary sequence. Can a reader decode these messages?

Deutsche Version

As I’ve reported several times, as a crypto professional I suffer from a kind of occupational disease: in almost every pattern I encounter, I see a coded message.

Most of the time, of course, that message doesn’t exist, but there are exceptions. These include, for example, the dots at the entrances to Victoria Station subway station in London, which I have reported on several times. These encode a message in Braille, and it’s hard to believe that there was no information about them on the Internet before my blog articles.

In addition to dot patterns, graffiti keeps jumping out at me. Many of them contain some kind of symbols that might mean something. Cryptographically, however, this is usually not very interesting, which is why I have rarely blogged about graffiti on Cipherbrain.

However, I have noticed some interesting graffiti in my Internet searches for blog topics. For example, this article is about graffiti depicting hobo signs that were spotted in the US city of Hartford.

The binary graffiti

Even more interesting is a series of graffiti I found on a website by London artist Stanza. Here is one of them:

– artwork by Stanza courtesy The Binary Graffiti Club

Unfortunately, the website does not mention where the respective graffiti appeared. Apparently, the photos come from different cities.

– artwork by Stanza courtesy The Binary Graffiti Club

As you can see, all these graffiti represent binary sequences.

– artwork by Stanza courtesy The Binary Graffiti Club

The artist does not mention who created these works. There is probably a whole team of sprayers active. We don’t learn more details, because of course it is forbidden to spray graffiti on public places – even if they are cryptographically interesting.

– artwork by Stanza courtesy The Binary Graffiti Club

Solutions

The binary sequences shown are not always the same, but there are repetitions. Many of the zeros and ones form groups of eight and could therefore represent ASCII characters. Can any reader make sense of this? Maybe there is also a hint or two on the website in question.

As always, I will gladly accept any relevant hints.

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Further reading: Graffiti-Verschlüsselung gelöst: Hat sich der Urheber selbst verraten?

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