Get paid without exposing your client list
A client paying an invoice should not see your other clients, your rates or your savings. Each invoice gets its own address.
What Sepia is for
Unseen
Robinhood Chain made trading on-chain feel like using an app. It also made every payment permanent and public. Sepia gives you a way to get paid there without handing your whole financial history to whoever you share an address with.
The problem
One address tells everything.
On any EVM chain, an address is a public ledger page. Once someone knows yours, a block explorer shows them your balance, every incoming and outgoing transfer, and every wallet you ever dealt with. That history never expires.
A fresh address for each payment sounds like the fix, but it breaks in practice. The new address has no ETH for gas. Fund it from your main wallet and the link is back on-chain for anyone to see.
Sepia closes both gaps: a new address for every payment, created automatically, and a relayer that pays the gas when you move the money out.
Who it's for
Anyone who gets paid on-chain
Six situations where a public wallet costs real money, safety or leverage.
A tip link in your bio, safely
Fans send tips to your Sepia link. Nobody can track how much you earn or follow the money to your main wallet.
Settle deals without being copied
Receive OTC settlements and profits on unlinked addresses, so your size and timing do not become someone else's signal.
Pay contributors quietly
Team cashboxes (Phase 2) let a project pay people without publishing a salary table to the whole chain.
Take payments at the counter
A printed QR takes payments in ETH, USDC or Pons tokens. Customers never learn your turnover.
Split rent, send gifts
Friends and family pay you without learning your balance. Your money stays your business.
Not a mixer
Private by design, clean by design.
Mixers pool strangers' money and have been sanctioned for it. Sepia never touches a pool.
| Property | Mixer | Sepia |
|---|---|---|
| Funds from many users in one contract | ||
| Protocol holds your money | ||
| Each payment to its own address | ||
| Open Ethereum standard (ERC-5564) | ||
| Share a viewing key with an auditor |
Principles
Four rules Sepia does not break
Non-custodial
Keys are derived in your browser. Sepia never holds funds or private keys.
No pooled funds
Every payment goes directly to an address that belongs to the recipient.
Open standard
ERC-5564 stealth addresses, readable by any compatible wallet or tool.
Opt-in disclosure
Share your viewing key with an accountant or auditor whenever you need to prove a payment.
Why Robinhood Chain
The busiest place to trade in public.
Robinhood Chain is an Ethereum layer 2 built on Arbitrum Orbit (chain ID 4663). ERC-5564 runs on it without changes, and fees stay low enough for a relayer to cover gas on small payments.
It is also where launchpad activity is concentrated, with Pons as the leading launchpad. That means a large crowd of active wallets that trade in public and want a private way to get paid. Sepia launches $SEPIA on Pons and accepts Pons tokens as payment.
- EVM-native. Works with MetaMask, Rabby and any EIP-1193 wallet.
- Cheap gas. Relayer withdrawals stay affordable for small amounts.
- Active market. Pons tokens can be received through Sepia links.