Anonymous login — no email, no password

CRYPTTRON Willkommen in der Zukunft

🔑 Sign in with Bit-SIGN

Anonymous login. No password, no email address, no name, no phone number, no identity check and no sign-up form. Your account is a Bitcoin key: you sign a one-time line, and that signature is the login. Nothing personal is collected, so there is nothing here to leak, sell or breach — identity protection by design, not by promise.

Sign a line in a wallet you already control. Easiest route, and no software to install.

▶ Watch the video — 90 seconds on what crosses the gap, and what never does

▶ Watch it: exactly what passes between this site and your wallet — and what never does. Open full screen ↗ · which wallets can sign →

1 · A Bitcoin address you control (bc1q…)

It cannot move your coins. Signing text is arithmetic on a key — it produces no transaction, pays no fee, and writes nothing to the blockchain. Authorising a payment means signing a transaction, which is a different operation and is not what happens here. Crypttron never connects to your wallet: you copy a line out, sign it on your own device, and paste a signature back.

Don't want to use your funded wallet? Make an empty one. A signature proves you hold a key; the balance behind it is never looked at. Any wallet listed in the setup guide will make one in two minutes at no cost.

If your wallet can't sign a message, or you'd rather work in a terminal, you can sign with a raw key instead. It reaches the same account — identity is the public key either way, so both routes land in the same place.

One-time setup. You need Python 3 and one library. ⬇ Download crypttron_sign.py, put it in a folder, open a terminal in that folder, and run pip install embit. The signing is done by that script on your own machine — nothing secret leaves it, and it never contacts this site.

1 · Your public key (66 hex characters, starts 02 or 03)

Not sure? Run python crypttron_sign.py --pubkey YOUR_PRIVATE_KEY to print it.

⚠ Never paste a private key into this or any other website. It is only ever typed into the script on your own machine, and this site has no field that would accept one.

⚠ There is no recovery. No password to reset, no email to send a link to. Lose the wallet and the account is gone — so keep your seed words, and don't put anything in here you would miss. An account holds saved searches and an API key, nothing more.