The model
A conventional token launch starts with no asset behind it. A stock-backed launch starts from an equity position that already exists onchain.
Robinhood issues tokenized stocks on Robinhood Chain. Stockback’s premise is that those positions can serve as the reserve for a new token: the stock is the underlying, and the token issued against it is a simpler, tradable exposure layer.
Tokenized stock → underlying reserve → new token.
Underlying, reserve, exposure
- 01 Underlying
- One or more tokenized equities held onchain. This is the asset the token refers to.
- 02 Reserve
- The position held against the issued supply. A reserve can reference a single stock or a basket of several.
- 03 Exposure
- The token itself: a single tradable instrument that expresses the composition underneath it.
Network
Stockback targets Robinhood Chain mainnet and no other network. There is no testnet build, no network selector, and no fallback chain.
| Network | Robinhood Chain (mainnet) |
|---|---|
| Chain ID | 4663 / 0x1237 |
| RPC | https://rpc.mainnet.chain.robinhood.com |
| Gas token | ETH (18 decimals) |
| Explorer | https://robinhoodchain.blockscout.com |
Values verified against Robinhood’s chain documentation. The public RPC is rate limited and carries no service guarantee; a dedicated endpoint can be supplied through NEXT_PUBLIC_RPC_URL, which must still resolve to chain 4663.
Robinhood Chain is an Ethereum layer-2 built on the Arbitrum stack that settles to Ethereum, with gas paid in ETH. Its public mainnet opened on 1 July 2026.
Stock tokens
The tokenized equities on Robinhood Chain are issued by Robinhood, not by Stockback. Their terms are set entirely by their issuer, and they carry restrictions that apply regardless of what is built on top of them.
- They are debt securities issued by Robinhood Assets (Jersey) Limited, giving economic exposure to an underlying security.
- They do not grant legal or beneficial rights in the underlying security, or against its issuer.
- They are not registered under U.S. securities laws and may not be offered, sold or delivered in the United States, or to or for the benefit of U.S. persons.
Stated by Robinhood in its Robinhood Chain mainnet documentation. Availability varies by jurisdiction. Stockback has no control over these terms and is not a party to them.
Contract address
No contract address is published yet. The CA control appears in the site header as soon as one is set, and no placeholder stands in for it before then.
The address has one source of truth, config/contract.json, written only by npm run ca -- set <address> and npm run ca -- clear. Addresses are checked for EIP‑55 validity before anything is written.
Using the composer
The composer connects a wallet, verifies it is on chain 4663, and lets you define a token symbol, a name, and the underlying equities it references with relative weights.
Weights are normalised to basis points by largest remainder, so allocations always total exactly 100.00% with no rounding drift. The resulting definition can be copied as JSON.
Wallet balances are read from the chain. When a balance cannot be read it is shown as an em dash rather than estimated.
Disclaimers
Stockback is an independent project. It is not affiliated with, endorsed by, or sponsored by Robinhood Markets, Inc. or any of its subsidiaries, and it does not issue, custody or redeem any tokenized security.
Nothing on this site is investment, legal or tax advice, an offer to sell, or a solicitation to buy any security or token. The conceptual token examples used throughout the site do not exist and are not offered.