Still choosing each other.
One year, ten, fifty.
Write one line about the years you’ve had, and engrave it on Bitcoin with today’s date. Nobody can change it, so it reads the same at the next anniversary, and the one after that.
It comes with a certificate to frame. The first anniversary is traditionally paper, so that one’s covered.

A certificate to keep, and a line that can’t be lost.
- A certificate to frame. A PDF for Letter, A4 or 11×14, printed at home or at any print shop.
- A page to share. One link that opens on any phone, for everyone who should see it.
- A permanent record. The line itself on Bitcoin, with its date, checkable by anyone, with or without us.
- Signed by you. The certificate carries the name on the card that pays, and theirs in “In honor of”.
Ways to give it.
You sign the certificate with the name on your card; your partner goes in “In honor of”. Put both your names or initials in the line.
For your partner, on the day
Give them the link at dinner, or the framed certificate the morning after.
“Five years in. Still my favorite person to do nothing with. — Alex”
The paper anniversary
Year one is traditionally paper, so the certificate is the gift, ready to frame.
“Year one, on paper and on Bitcoin. Here’s to fifty more. — Ben”
From the kids, for their parents
One of you orders and signs; the line says it’s from all of you.
“40 years, Mom & Dad. Thanks for showing us how it’s done. — the kids”
Lines you might write.
“Ten years married today, and I would still choose you every time. — Sam”
“Fifty years, three kids, one tandem bike. Still pedaling. — G & L”
“Year one is paper, so here is yours. Love you, Kit. — Ben, 2026”
How it’s kept.
01Write one line
Up to 80 plain letters, about one sentence. The years, a memory, or just “I’d do it again.” First names are plenty.
02Bitcoin dates it
About every ten minutes Bitcoin adds a block, stamped with the time. Your line usually goes into the next one, and stays there.
03Frame it, share it
Print the certificate, and keep the link. The transaction ID opens your line on a public Bitcoin explorer.
- 10:09
- 10:21
- 10:31Your line
- 10:42
- 10:50
The line is public. Full names aren’t.
Anyone can read the line, for good. The full names on your certificate aren’t on Bitcoin or the public page, only on your private link, so initials or first names in the line work well.
Public anyone can see it
Anniversary
“Ten years married today, and I would still choose you every time. — Sam”
These words go on Bitcoin, for good.
Private only via your link
- Signed bySam Rivera
- In honor ofAlex Rivera
- Emailsam@example.com
What it proves, and what it isn’t.
It proves
- These words were written by that date
- Nobody has changed a letter since
- They don’t depend on us, or any website, staying around
What it isn’t
- A marriage record
- Private: anyone can read the words
A marriage record comes from the county or the state. This is a keepsake.
Good to know.
One sentence: the years, a memory, an inside joke, or just that you’d do it again. Initials or first names are plenty, since it’s public.
Yes. Order it, then give them the link or a printed certificate. The private link is in your order email.
No. The date on Bitcoin is the day you engrave it. If the day matters, put it in the words.
No. Once it’s on Bitcoin nobody can change it or take it out, us included. Next year, write a new one.
$49, paid once by card, everything included, Bitcoin’s fee too. You get a link to share and a certificate to print and frame.
Another year, on the record.
Write your line, pay by card. It usually goes into Bitcoin’s next block, about ten minutes later.
Coming soon