Turn your Seed Phrase into
a Memory you Can't Lose.
Your memory→Your keys→Your coins
Mindlockr is a zero-knowledge memory editor that encodes your 24-word seed phrase into visual triggers only you can decode.
Be the first to join
The Problem
Self-custody has a blind spot.
Every physical backup is a single point of failure.
PAPER & METAL FAIL
A house fire reaches 1,100°F in 3 minutes. Steel plates warp at 1,500°F. Your seed phrase vaporizes before the fire department arrives.
PHYSICAL = SEIZABLE
If your backup exists in the physical world, it can be found by anyone with access to your home — a thief, a guest, or a government.
DIGITAL = HACKABLE
Password managers and cloud drives are honeypots. One breach, one compromised device, and it's over. Forever.
HARDWARE WALLET
Secures the transaction
METAL PLATE
Survives fire and flood
MINDLOCKR
Survives everything else
LAYER 3"Your Ledger secures the transaction. Your metal plate survives the fire. Mindlockr survives everything else — including you forgetting."
How It Works
Three steps. One unbreakable backup.
Enter your seed phrase positions
We work with positions only — Word 1, Word 2, Word 3. Your actual words never leave your device.
Upload and annotate images
For each word, choose an image and annotate it with personal memory triggers using the Mindlockr editor.
Encrypt and remember
Your annotated images are encrypted in your browser before upload. Practice recall. Build the memory. Carry it forever.
The Solution
How Memory Mapping Works
We don't store your words. We store visuals that force your brain to recall them. Hover over the cognitive stack below to inspect the pipeline.
Memory Trigger
BROTHER CONFESSED TO BREAKING MY GUITAR
1The Word Stays Offline
The seedphrase word is never an input. You never type it into your device. You just look at your physical backup and pick the exact word. We don't know it, and we want to keep it that way.
2The Mental Link
If your seedphrase word is "Admit", you deliberately link it to a memory: the afternoon your brother confessed to breaking your favorite guitar. The logical connection is now severed. A computer can't guess this because it only exists in your brain.
3The Cryptographic Layer
You generate a picture of a smashed guitar. To a hacker intercepting your data, it's just a random photo encrypted with AES-256. But to you, the splintered wood immediately screams the original seedphrase word.
4The Biological Recall
Months later, you restore a wallet. Mindlockr shows you the smashed guitar. Your neural network fires: Guitar → Confession → "Admit". You extract the specific seedphrase word instantly without us ever storing it.
The Case for Mindlockr
The DIY Memory Fallacy.
Once you understand visual memory, the first instinct is to build a DIY backup: "I'll just save my memory images in a Google Doc or PowerPoint." But a static document is the weakest link. It doesn't actively train your recall, it becomes chaotic across multiple wallets, and it leaves your metadata exposed in the cloud. Mindlockr is a purpose-built architectural solution.
Security through effort
A file can be copied in milliseconds by malware. A metal plate can be photographed by a guest. But a memory association stored in your brain cannot be brute-forced, subpoenaed, or skimmed.
Stop checking your hiding spots
Physical backups create anxiety. Digital backups create vulnerability. Mindlockr encrypts the data client-side and stores the key in your mind. The anxiety disappears because the vulnerability disappears.
Proof of Security
We put 0.1 BTC behind our system.
We funded a real Bitcoin wallet, published all 24 visual memory associations, and challenged the world to crack it. Nobody has.
Client-side BIP-39 derivation · Your guesses never leave your browser
The Case for Self-Custody
Don't take our word for it.
"Self custody is a fundamental human right... Just make sure you do it right."
"Self-custody. That's it. That's the tweet."
"The entire point of crypto is Self-Custody."
The Science Behind Mindlockr
random words recalled after 6 weeks of visual memory training
seed phrase retention in Bitcoin-specific mnemonic study
method of loci in documented use
Dresler et al., Neuron 2017 · Vlahavas et al., IJSG 2025