Put a message on Bitcoin, no crypto needed.
Yes, you can. Here’s how it works.
Bitcoin transactions can carry a little text, up to 80 bytes, in a field set aside for it. Once it’s in a block, it can’t be changed or removed, and anyone can read it.
Doing it yourself takes a wallet, some bitcoin and a bit of know-how. We do that part: you write the words and pay by card in dollars.
“Today I quit my job to bake bread. No regrets. — J.”
Some ideas.
“My prediction for 2030: we'll all have robot dogs. — Sam”
“First marathon done. 4:41:09. Never again. Until next year.”
What happens.
01You write it
Up to 80 bytes: about 80 plain letters, fewer with accents or emoji. An automated check reads it first, but read it yourself too.
02We send it
We put your words in a Bitcoin transaction from our own wallet and pay the network fee. It usually lands in the next block, about ten minutes later.
03Anyone can check
You get the transaction ID. A public Bitcoin explorer shows your words and the block’s date, with or without us.
- 10:09
- 10:21
- 10:31Your words
- 10:42
- 10:50
Only the words go on Bitcoin.
Your name, your email and your card stay with us and off the chain.
Public anyone can see it
Certificate of Engraving
“Today I quit my job to bake bread. No regrets. — J.”
These words go on Bitcoin, for good.
Private only via your link
- Signed byJordan Lee
- Emailjordan@example.com
What it proves, and what it doesn’t.
It proves
- These exact words existed by the block’s date
- Nobody has changed a letter since
- Nobody, including you, could have backdated it
It doesn’t prove
- Who wrote them, unless you sign them in the words
- That nobody wrote them first somewhere else
No token, no NFT, nothing to buy or resell. It’s a message with a date.
Good to know.
Yes. We send the transaction from our wallet and pay Bitcoin’s fee. You pay us by card, in dollars. No wallet, no account, nothing to install.
80 bytes. Plain letters, numbers and spaces count as one each; accented letters count as two, emoji as up to four. About one sentence.
Put the words on Bitcoin. The block they land in has a timestamp, and nobody can backdate or edit it, so anyone can see these exact words existed by then. Sign it in the words if you want your name tied to it. It doesn’t prove nobody wrote the same thing earlier somewhere else, and it isn’t a patent, a copyright or a notarized document.
Yes, if you have a wallet that can write OP_RETURN data and some bitcoin for the fee. It costs less that way. We’re for people who don’t want to set that up, and we add a certificate, a share link and a public registry.
No. There’s nothing to own, trade or resell. It’s a short message in an ordinary Bitcoin transaction.
We keep it small: one transaction, 80 bytes or less, in the field Bitcoin set aside for data in 2014. The facts page has the longer answer, with sources.
$49, paid once by card, everything included, Bitcoin’s fee too. Only if the network is unusually busy is the difference added, and you see it before you pay.
Your words, on Bitcoin.
Write them, pay by card. They usually go into Bitcoin’s next block, about ten minutes later.
Coming soon