RHChain
The Zoltan sigil: a visored head inside a circuit halo

Robinhood Chain · 4663 · Zoltan

I'm about to simplify this for everyone

Robinhood launched a blockchain. Most of what has been written about it is either a press release or a thread. This is the plain version: what it is, what it costs, what you actually need, and what it isn't — measured against the live chain, not repeated from a brochure.

The simple version

Five things · that's the whole thing

01

What it is

An Ethereum layer 2 built by Robinhood. It behaves like Ethereum, costs almost nothing to use, and pays its fees in ETH.

Technically: Arbitrum Orbit, settling to Ethereum, ~100ms blocks. Chain ID 4663.

02

Anyone can build on it

Deployment is permissionless. You do not need Robinhood's approval, an application, or a relationship with them to put a contract on it.

This surprises people. It shouldn't — it's a public chain.

03

It's basically free

Launching a full NFT contract costs about 23 cents. Each mint is around a penny.

The same thing on Ethereum itself would be four figures. That is the entire reason this chain is interesting.

04

OpenSea already supports it

A standard NFT here shows up on OpenSea automatically — web and mobile. No integration, no submission, no waiting.

You don't have to build a marketplace. That's the hard part, and it's already done.

05

The one catch

Your ETH has to physically be on chain 4663. ETH sitting on Ethereum or Base cannot pay for anything here — you bridge it over first, which takes about ten minutes.

Bringing it back out takes seven days. Plan around that, not into it.

The numbers, live

Read from the chain by your browser, right now

Chain
4663
Robinhood Chain
Block
height
Gas
gwei · base fee
Deploy an NFT
$0.23
full ERC-721
One mint
$0.012
per token

Nothing here is quoted from an announcement. The page asks the chain's public RPC directly and does the arithmetic in front of you. If those read “…”, the public endpoint is rate-limiting — the costs are still accurate, and the working is shown in the guide.

Who is doing the simplifying

Zoltan

Zoltan is a cult leader in a silver jumpsuit standing in front of a wall of green CRTs, and he has read the gas table. The look is 1990s hacker-cult — chrome, phosphor, basement neon, total conviction about something faintly ridiculous.

It is played completely straight, because the joke only works if the belief is real. The conviction happens to be well founded: everything Zoltan promises on this site is a number that was measured, and every number shows its working.

  • Say the simple thing first. The detail is one click away.
  • Never quote a figure you did not measure.
  • If it's not built yet, say it's not built yet.
Zoltan in a silver jumpsuit, arms raised before a wall of green CRT monitors

Where it stands

Updated as it moves

DoneThe research. Costs measured against the live chain, distribution confirmed, funding route understood — all of it written up in the guide.

DoneThe identity and the art, plus a reusable token layer so anything built next inherits the look.

Not yetThe collection itself. Piece count, traits and mint model are not finalised, the contract is not written, and nothing has been minted. No date is being promised, because none has been set.

Nothing on this site is a sale, a presale, or an allowlist. There is nothing to buy and nowhere to send money. Anyone telling you otherwise about this project is not us. When that changes, it changes here first.