GRUBSTAKE markGRUBSTAKE
Prototype. The flow you see is simulated; nothing here is live and nothing moves money.

Sources

All data is read directly from GRUBSTAKE’s own database and each user’s wallet signature — never invented. The board itself is off-chain and self-reported by design; Longbow is where the money actually moves, on-chain, in the backer’s own wallet. Empty board means no open requests right now.

Wave evidence — Longbow

Claims

  • Longbow is a live curated lending protocol on Robinhood Chain, listed by DefiLlama in the Lending category with ~$3.59M TVL on 2026-09-15.
    “Longbow is a curated lending protocol on Robinhood Chain.”
    · source
  • Morpho's official addresses page lists Robinhood Chain among the networks where Morpho Blue and Morpho Vault V2 are deployed.
    “Robinhood Chain”
    · source
  • On Morpho a borrow position becomes liquidatable as soon as its LTV exceeds the market's LLTV, which can happen from collateral price falls or accrued interest.
    “A position becomes liquidatable when its LTV exceeds the market's Liquidation Loan-To-Value (LLTV) which can happen due to:”
    · source
  • Morpho liquidations are permissionless: any external party can repay the debt and take collateral plus a liquidation bonus.
    “When a position becomes liquidatable, any external party (a liquidator) can repay part or all of the borrower's debt in exchange for an equivalent amount of collateral plus a liquidation bonus.”
    · source
  • USDG is natively available on Robinhood Chain, announced 2026-07-01 as the lending asset of Robinhood's Earn product.
    “Global Dollar (USDG) is now available on Robinhood Chain, an EVM layer 2 built on Arbitrum”
    · source
  • Robinhood Chain's official docs give the canonical USDG token contract address on the chain.
    “0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168”
    · source
  • Robinhood Chain mainnet is an Arbitrum L2 on Ethereum using blobs for data availability, chain id 4663, ETH as gas, Blockscout as explorer.
    “Robinhood Chain is an Arbitrum Layer-2 Chain built on Ethereum, using Ethereum blobs for data availability”
    · source
  • Robinhood Stock Tokens are not registered under U.S. securities laws and may not be offered, sold or delivered in the United States or to U.S. persons.
    “Stock Tokens are not registered under U.S. securities laws and may not be offered, sold, or delivered, directly or indirectly, in the United States”
    · source
  • Stock Tokens are standard ERC-20 tokens that can be held, transferred and composed into on-chain applications, which is what makes them usable as Longbow collateral.
    “Stock Tokens are issued as standard ERC-20 tokens that can be held, transferred, and composed into applications onchain”
    · source
  • The SEC's framework states an investment contract exists when money is invested in a common enterprise with a reasonable expectation of profits derived from the efforts of others — the shape of a grubstake profit split.
    “investment of money in a common enterprise with a reasonable expectation of profits to be derived from the efforts of others”
    · source
  • Hyperliquid legacy vault leaders take a 10% profit share for trading depositors' capital, the closest live on-chain analogue of a backing split.
    “Vault leaders receive a 10% profit share for managing the vault.”
    · source
  • Onchain prop firms fund traders who pass an evaluation and pay 80–100% profit splits, with payouts settled publicly on a block explorer.
    “An onchain prop trading firm provides capital to traders, typically in cryptocurrency, requiring them to pass an evaluation phase by trading on decentralized exchanges (DEXs)”
    · source
  • Staking/backing is the established name for investing in a performer's results for a share of profits.
    “Staking in poker is the process where a person invests in a poker player's performance.”
    · source
  • Staking marketplaces already exist as products: StakeKings lets anyone buy a share of a vetted performer's action, from 1% up to the full buy-in.
    “StakeKings is a unique platform that allows individuals to invest in poker players by purchasing stakes in their tournament entries.”
    · source
  • Markup is the premium a performer charges on top of the stake to price their own track record — the number a reputation book would compute.
    “Markup in poker refers to the additional percentage a player charges on top of their tournament buy-in to account for their skill and potential profitability.”
    · source
  • Blockscout exposes a documented REST API per instance (docs at instance/api-docs) with keyset pagination, usable to read address token transfers on the Robinhood Chain explorer.
    “REST API methods are used to render the UI for new versions of Blockscout”
    · source
  • Robinhood Chain gives sub-second soft confirmation but hard finality only when the batch reaches Ethereum finality.
    “Soft confirmation in under a second; hard finality when the batch reaches Ethereum finality”
    · source
  • Longbow's LONGBOW/USDG pools are live and trading on the robinhood network today (pons-v2), visible through GeckoTerminal's public pool search.
    “LONGBOW / USDG”
    · source
  • GeckoTerminal's free public API is limited to 10 calls per minute.
    “10 calls/min”
    · source
  • Robinhood Chain shows ~$936M of DeFi TVL in DefiLlama's live chains API on 2026-09-15.
    “"name":"Robinhood Chain"”
    · source
  • The Ethereum Attestation Service contracts repo lists deployments for chains such as arbitrum-nova, base, optimism, ink and unichain, and has no Robinhood Chain deployment folder.
    “arbitrum-nova”
    · source
  • A read of USDG transfers between the backer's and the analyst's addresses on the Robinhood Chain Blockscout instance returns the stake and settlement transactions with timestamps.
    “REST API methods are used to render the UI for new versions of Blockscout”
    · source
  • The Robinhood Chain public RPC answers eth_chainId with 0x1237 (4663) without a key.
    “Robinhood Chain is an Arbitrum Layer-2 Chain built on Ethereum, using Ethereum blobs for data availability”
    · source

Data sources

  • GRUBSTAKE board (asks, stakes, settlements) — Off-chain, wallet-signed records stored in this product's own Supabase schema (p_grub). Every ask, stake and settlement is a user-signed EIP-712 payload verified server-side before it is written — it is not read from a chain contract, because this product does not have one on purpose (see FAQ: no custody, no product contract).
  • Longbow / Morpho Blue on Robinhood Chain — Where the actual USDG borrow-against-Stock-Tokens happens, in the backer's own wallet. GRUBSTAKE links out to it and never routes or custodies that transfer.
  • Wallet signatures (EIP-712) — Every write on this site is signed by the acting wallet (eth_signTypedData_v4) and verified server-side with viem's verifyTypedData before it reaches the database — see scripts/test-signing.mjs for an automated proof.
Cited claim

C1 — Longbow is a live curated lending protocol on Robinhood Chain, listed by DefiLlama in the Lending category with ~$3.59M TVL on 2026-09-15. Source

Internal data-source labels (used per content band)
  • user-input — a wallet’s own signed ask, stake or settlement submission.
  • chain:longbow-grub-contracts — the open-requests board: rows written after a signed post, read straight from the p_grub.asks schema on the hub.
  • chain:settlement-events — recent settlement stamps, from p_grub.settlements.
  • chain:reputation-book — the computed repeat-stake / paid-rate view, from p_grub.reputation.
  • chain:past-performance — the same reputation view, read for the “re-stake” prompt.
  • chain:active-positions — a wallet’s own open asks and stakes on /my-stakes, always a live query, never simulated.

None of these read a GRUBSTAKE-owned smart contract — there isn’t one. “chain:” here names the data band, not an on-chain read; every row is a wallet-signed record in this product’s own database (see Longbow above for the one leg of the flow that is genuinely on-chain).