BLK

EquitiesLive

Tokenized BlackRock Inc.

Tokenized BlackRock Inc., on-chain exposure to the underlying equity.

See BLK on /markets →Underlying ticker: BLK

Key facts

On-chain symbol
BLK
Underlying
BLK
Asset class
Equities
Custody
Held at Flo Finance
Chains
Base, Arbitrum, Ethereum
Distribution treatment
Total return, accrued to NAV
Attestation cadence
Daily
Issuer
Flo Finance
Backing
1:1 backed by the real underlying

How BLK resolves to BLK

Each BLK on-chain represents a 1:1 claim on the underlying BlackRock Inc. held at an institutional custodian. The issuer and backing model are the same for every Flo token; only the underlying differs.

  1. 01

    Issuance

    Flo Finance issues BLK as a tokenized BlackRock Inc., 1:1 backed by the real underlying.

  2. 02

    Custody

    The underlying BlackRock Inc. is held at Flo Finance, an institutional custodian.

  3. 03

    Settlement

    BLK settles on-chain on Base, Arbitrum, Ethereum. Cross-chain transfers route through Chainlink CCIP.

  4. 04

    Attestation

    Reserves are attested daily by an independent auditor and published on the Flo transparency surface.

Mint BLK with one SDK call

Every Flo-issued token shares the same six SDK methods. Mint, redeem, supply, withdraw, borrow, repay.

POST /v1/mint

{
  "asset": "BLK",
  "notional_usdc": "1000.00",
  "slippage_bps": 50,
  "settlement": {
    "currency": "USDC",
    "chain": "base"
  }
}

Where BLK lives today

Flo distributes through partners. The same BLK on-chain is the asset every partner integrates against; partner UIs may relabel it for their own brand.

Partner integrations in build

No live partner is distributing BLK yet. Twelve integrations are in build across exchanges, wallets, fintechs, neobanks, and asset managers. Partners are listed here only after they ship.

Audits

Four independent firms, $250K bug bounty

Sherlock, Halborn, Cantina, and Cyfrin have audited the smart contracts that issue and settle BLK. The same contracts power every Flo-issued token; one audit covers the catalogue.

Read the audit reports →

Backing

1:1 backed by the real underlying

BLK is issued by Flo Finance and 1:1 backed by real BlackRock Inc. held at institutional custodians. Reserves are attested daily and published on the Flo transparency surface.

Open the transparency page →

Risks

BLK carries the market risk of the underlying BlackRock Inc., plus the structural risks common to every tokenized asset: custody concentration, smart-contract risk, and oracle dependency. Read the full risk disclosures on the Flo transparency surface before integrating or holding.