Some moments deserve to last forever.
Permanently record your most important milestones, including births, memorials, weddings, and achievements, on the blockchain. No company, no government, and no one can ever delete or change it.
No crypto knowledge needed. Pay with a card or Bitcoin.
Every inscription pays Bitcoin miners directly, helping secure the most permanent network ever created.
Permanent is Not Enough
Permanent is not enough. Every OnChainImprint inscription is also verified, cryptographically signed and permanently traceable to a single trusted source. No other inscription service can say that.
Patent pending. Protected by U.S. patent application(s).
Before OnChainImprint, anyone could put a message on the blockchain. That's still true. But only OnChainImprint inscriptions carry proof that they came from us, and only us.
That proof is permanent, unforgeable, and verifiable by anyone, anywhere, forever. It means your inscription is genuinely yours. No one can copy it and claim they made the original.
Anyone can put words on the blockchain. Only OnChainImprint proves where they came from.
Beyond Social Media
Social media posts disappear. Accounts get deleted. Platforms shut down. Algorithms decide what gets seen and what gets buried.
Some moments deserve better than a feed.
Not a post. Not a tweet.
A permanent record, written directly onto the blockchain, owned by no one, permanent forever.
Choose Your Milestone
Select the moment you want to preserve forever.
Send a Tribute to Satoshi
A permanent message on the Bitcoin blockchain, with a coin sent to the wallet that started it all.
$49.99 →🎁Give a Gift
Give someone the power to permanently inscribe their own moment on the blockchain. They choose what to say. You cover the cost.
From $24.99 →📄DocuSeal
Permanently seal any document on Bitcoin. Cryptographically prove it existed. Your file never leaves your device.
$39.99 →📝Leave Your Mark
Leave a message on the blockchain forever. Simple, low-friction, all chains.
$19.99 →✏️Correct an Inscription
Made a mistake? File a permanent correction linked to your original inscription on the blockchain.
From $9.99 →🌳Family Tree
Build your family's permanent record on the blockchain. Every birth, marriage, and memorial linked together forever. A living tree that grows with every generation.
From $39/mo →How It Works
Three steps. Then it's permanent.
Choose Your Moment
Pick the milestone type: a birth, memorial, wedding, achievement, or anything worth preserving.
Write Your Message
Put into words what you want preserved forever. Review it, then pay with a card or Bitcoin.
It’s Permanent
Your words are recorded on the blockchain and can never be removed. Not by anyone, not ever.
Why This Is Different
Unlike social media posts that can be deleted, databases that go offline, or companies that shut down, your inscription lives on the Bitcoin, Ethereum, or Solana blockchain permanently. As long as the blockchain exists, your moment exists.
Your inscription, your privacy.
Effectively private by default
With billions of transactions across Bitcoin, Ethereum, and Solana, the odds of anyone stumbling onto yours without the transaction ID are astronomically small. Keep your TXID to yourself and your inscription is invisible to the world: permanent, but private.
An extra layer of privacy
Choose binary encoding and your message appears as unreadable noise on any block explorer. Even if someone finds your transaction, they see nothing but garbled data. Only someone with your transaction ID and the decoder can read it.
Share it with the world
Share your transaction ID anywhere, including social media, a memorial page, or a family group chat. Anyone can verify your inscription is real, permanent, and unchanged. The blockchain is the proof.
Your identity stays yours
Your inscription is not tied to your name or identity unless you choose to include them. What you inscribe, and who knows about it, is always your decision.
The blockchain remembers. You decide who knows.
Your Transaction ID: the key to your message
When your message is recorded on the blockchain, it receives a unique Transaction ID: TXID. Think of it as the permanent address of your message. No two are alike, and yours will exist as long as the blockchain does.
Read your message
Paste your TXID into onchainimprint.com/decode to read your message exactly as it was recorded, word for word, unchanged, and permanent.
Share it
Give your TXID to anyone you want to share your message with. They can read and verify it themselves, with no account needed and no trust required. The blockchain is the proof.
View it independently
Your TXID can be looked up on any public block explorer, independent tools that let anyone examine the blockchain directly. Your message lives there permanently, completely independent of OnChainImprint.
How to verify on a block explorer
Bitcoin
mempool.space
Go to mempool.space, paste your TXID in the search bar, and look for the OP_RETURN output to see your message.
Ethereum
etherscan.io
Go to etherscan.io, paste your TXID in the search bar, and check the Input Data field to see your message.
Solana
solscan.io
Go to solscan.io, paste your TXID in the search bar, and find the Memo instruction to see your message.
You don't need to trust us. You just need your TXID.
Wait, is this like an NFT (Non-Fungible Token)?
We get it. But no, and the difference matters.
When you buy an NFT, you own a token that points to an image or file stored somewhere else, on a server or another external system. If that server goes down, the image disappears. The token remains but what it pointed to is gone forever. Worse, whoever controls that server can alter or replace what your token points to without your knowledge or consent.
When you create an OnChainImprint, your actual message, your words, your moment, lives directly on the blockchain itself. There is no server. There is no file stored somewhere else. There is no company that needs to stay in business for your message to survive. Your words are the blockchain record.
An NFT
A certificate of ownership for something stored elsewhere, on a server you don't control.
OnChainImprint
The thing itself, permanently written into the most secure and permanent record system humanity has ever created.
We also offer NFT services because sometimes a certificate of ownership is exactly what you need, especially for collector items and provenance records. But for your most important moments? Your message deserves to be more than a pointer to a file sitting on a server that can go down, be altered, or disappear entirely, taking your moment with it.
Inscription Tiers
From a single line of text to Eternal tier inscriptions with room for your full story on any chain.
Basic
$24.99 + network feeA permanent marker on the blockchain. ~70 words (429 bytes) per inscription on Bitcoin, Ethereum, and Solana, preserved in a single transaction forever.
Chained
From $24.99 per linked inscription + network feeFrom ~70 words — grows automatically as you write, from $24.99 per linked inscription
Eternal
$99.99 + network feeYour full story, permanently recorded
Genesis
Phase 4The rarest inscription possible. Your tribute is embedded in a freshly mined Bitcoin block, one of only a few granted per block, forever part of the block that created new Bitcoin.
Union Bundle
$149.99 + network feeThree permanent inscriptions: one for each partner's vows, and a third that references both on-chain.
Renewal Bundle
$149.99 + network feeRenew your commitment on-chain. Two inscriptions, one for each partner, linked together forever.
Twin Bundle
$124.99 + network feeBorn together, recorded forever. Two inscriptions + one linking both.
Triplet Bundle
$174.99 + network feeBorn together, recorded forever. Three inscriptions + one linking all.
The Vault
From $34.99 + network feeYour inscription permanently recorded across multiple blockchains simultaneously. The most durable record a human being can create.
Wishing Well
$49.99 + network feeA permanent message on the Bitcoin blockchain, with a coin sent to Satoshi genesis wallet tribute. Optional message up to ~83 words (500 bytes UTF-8), plus certificate photo.
Memo
$19.99 + network feePut any message on the blockchain forever. ~50 words (300 bytes) before encoding across every chain.
Ready to Preserve Your Moment?
Some things are too important to trust to any company or platform. Make it permanent.
Preserve a Moment