sheaf

Testnet · Ethereum Sepolia

Magnificent Eight

MAG8 · 0x6a47…6141 · creator fee 0.25% of shares created

One share, at the real stocks' price

$10.03

Robinhood Stock Token quotes

HyperCore 24/7: reading

One MAG8 share is a claim on 8 holdings sitting in a contract on Ethereum that has no owner, no pause and no upgrade path. Anyone can create a share by depositing the recipe, and any share can be redeemed for it. No issuer has stock tokens on this testnet, so the holdings are labeled mirrors: free tokens named “Tesla (Sheaf testnet mirror)” and so on, worth nothing. The dollar figure is what the same recipe would be worth in the real shares.

METAAMZNAAPLTSLANVDAMSFTGOOGLPLTR
Shares outstanding
—— creations, — redemptions
Everything in the vault
—At the real stocks' price
Backing
—Held against owed, every component
Dollar desk
sUSDA labeled test dollar

Bring a little Sepolia ETH for gas; the house has none to spare here.

Sepolia faucets: Google Cloud, PoW faucet.

Then mint the mirrors yourself: every one has a public faucet(), so your own wallet calls it and no key of ours is involved. Enough for two shares, plus 50 sUSD.

The recipe

Written once, in the constructor, with no setter. The recipe is in raw token units, so a split or a dividend that a token applies through its multiplier accrues to every share without anyone touching the vault.

HoldingPer shareValueWeight
TSLAmirror
0.00331$1.2612.6%set 12.5%
NVDAmirror
0.00537$1.2612.5%
AAPLmirror
0.003671$1.2212.2%set 12.5%
MSFTmirror
0.002388$1.2612.6%set 12.5%
AMZNmirror
0.004889$1.2512.5%
GOOGLmirror
0.003575$1.2612.5%
METAmirror
0.001734$1.2612.5%
PLTRmirror
0.006265$1.2612.5%

Is it actually backed?

Held is the vault's balance of each token right now, from vaultBalances(). Owed is the recipe times totalSupply(). Deposits round up and redemptions round down, so held can never fall below owed.

Reading the vault…

Verify it yourself

Two reads against the public RPC, no key:

cast call 0x6a47aC82a3eE22FCC2b80D5c1F45Daba23e06141 "totalSupply()(uint256)" --rpc-url https://ethereum-sepolia-rpc.publicnode.com
cast call 0x6a47aC82a3eE22FCC2b80D5c1F45Daba23e06141 "vaultBalances()(uint256[])" --rpc-url https://ethereum-sepolia-rpc.publicnode.com

For every component, vaultBalances[i] must be at least unitsPerShare[i] × totalSupply ÷ 10^18. The recipe is in components().

The desk's book

Dollar orders on Ethereum Sepolia, newest first, read from getOrder(). A buyer escrows sUSD; any participant who delivers the components in kind collects it, and the shares are minted straight to the buyer. The house filler is one such participant.

Desk 0x336c…26E4

Reading the desk…

Priced around the clock

The stock exchanges close; HyperCore's stock perpetuals do not. This prices the same recipe from trade.xyz's oracle on Hyperliquid testnet, read through HyperEVM's oraclePx precompile with a plain eth_call, no gas and no key. It is a reading, not a deployment: nothing of Sheaf runs on Hyperliquid yet.

—

Priced from HyperCore, not deployed

PerpPrecompile indexOracle price
xyz:TSLA—reading
xyz:NVDA—reading
xyz:AAPL—reading
xyz:MSFT—reading
xyz:AMZN—reading
xyz:GOOGL—reading
xyz:META—reading
xyz:PLTR—reading

The contracts, verified

Also on Ethereum: AI Core (AICORE), Everyday Tech (EVDY).