PGP registry
& public ledger.

Find a public key

Register or update a key

Your email is verified by a code. A detached PGP signature proves you hold the private key. Keep your private key in your own PGP application.

Use a username

Email-only registration is free and includes a user ID. A one-time US$5 BTC payment unlocks a username. US$10 XMR is an alternative awaiting a Monero receiving address.

Scan to pay for your username

The QR code fills in the receiving address and exact Bitcoin amount. Review and approve the payment in your wallet.

SEND EXACTLY

Copy BTC amountTo this Bitcoin addressCopy address

Open Bitcoin walletSave payment receipt

Keep the receipt before leaving this page. Send BTC on the Bitcoin network. Wallet network fees are separate.

After sending, paste the Bitcoin transaction hashCheck payment and continue

Your username unlocks after two Bitcoin confirmations.

PGP service access · US$10

One-time BTC payment to view the registered-user directory and publish signed PGP messages. Free email registration and exact-email key lookup remain available.

Publish ciphertext

Encrypted messages are publicly downloadable and cannot be withdrawn from this ledger. Sender fingerprints, times, message sizes and encryption metadata remain visible. Encryption does not hide all metadata or guarantee secrecy forever.

Hash-linked ledger

Number8 and Omerta use the same ledger. Each entry commits to the previous entry’s hash. This is an operator-hosted, tamper-evident log, not a decentralized blockchain. The operator could rewrite the full history; retain independent checkpoints to detect changes.