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Solo Miner
Unisex tee · XS–3XL
$39.99
Hover to zoomLet's Hash It Out Bitcoin T-Shirt
$39.99
A big orange hash sign above LET'S HASH IT OUT and a small Bitcoin symbol, a pun for miners, nerds and arguers.
- Unisex tailored fit, sizes XS–3XL
- Free US shipping over $75, $4.99 below
- 30-day size exchanges on unworn tees
About this design
A large orange outline hash sign, two vertical and two horizontal slanted bars crossing in a grid, sits above LET'S HASH and IT OUT in two lines of bold white capitals. A small tilted orange Bitcoin symbol sits centered below the words.
Fabric, fit & print
| Material | Airlume combed & ring-spun cotton |
|---|---|
| Fit | Unisex tailored crew neck |
| Printed to order | |
| Sizes | XS, S, M, L, XL, 2XL, 3XL |
| SKU | BC-HASHITOUT |
Shipping & exchanges
Ships in 3–4 business days, tracked. See the shipping policy and returns & exchanges.
The story
Behind the Let's Hash It Out tee
Let's hash it out is what you say before a long conversation, and hashing is also what Bitcoin miners do all day. A bold hash sign sits over the pun, so the joke works for coders and non-coders alike.
In Bitcoin, a hash is a fixed-length fingerprint produced by running data through the SHA-256 function. Mining works by taking a block header and hashing it twice, then changing a number called the nonce and trying again until the result falls below a target set by the network. That is a lot of hashing. Over a conversation, the phrase means something calmer, which is the whole joke.
It works at a hackathon, a mining meetup or any office with an engineer who loves puns. The hash sign is recognizable to anyone who has used a keyboard, so even people outside the bitcoin world get to enjoy the wordplay.
Questions
About this design
What does hashing mean in Bitcoin?
A hash function turns any input into a fixed-size fingerprint. Bitcoin uses SHA-256, and miners run a block's header through it twice, adjusting a number called the nonce each try. They keep going until the result is low enough to count. Changing even one character gives a totally different fingerprint.
Is the hash sign the same as the pound sign?
It is the same character on a keyboard, called the number sign, pound sign, octothorpe or hash depending on where you are. In this design it is drawn big in orange line art, partly for the pun and partly because it makes a clean, bold shape.
Do I need to know about mining to wear it?
Not at all. Let's hash it out is an everyday phrase for talking through a disagreement, and most people will read it that way first. Bitcoiners get the second layer, and the small orange Bitcoin symbol under the words gives them the wink.
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