Tokenized collateral / intraday margin / Chainlink‑orchestrated

Collateral that earns until the microsecond it's needed.

A tokenized T‑bill fund is posted as margin on one chain. The instant a position breaches maintenance on another, the system redeems only the exact shortfall into USDC and mobilizes it back over CCIP — one automated flow, zero humans, zero over‑liquidation. The remainder never stops compounding.

▶ Run the margin event forge test — 14 passing

The event

real numbers · $10m book · 30‑day hold

JIT MARGIN ENGINE — LIVE SCENARIO ● HEALTHY

Chain A · custody

Arbitrum Sepolia — Collateral Vault

NAV / SHARE · tokenized T‑bill fund

$1.000000

COLLATERAL POSTED

$10,000,000

● 10,000,000 shares still earning ▨ 49,795 redeemed

CCIP

Chain B · venue

Base Sepolia — Margin Engine

ETH / USD · Chainlink Data Streams

$3,000 /ETH

SHORT 1,000 ETH · equity vs maintenance

equity $200,000 margin $200,000

t+0.00sPoRreserves attested · fund fully backed · collateral accepted

What the event proves

$50k

redeemed from a $10m book — the exact shortfall, right‑sized

over‑liquidation · humans in the loop · settlement windows

T+0

intraday cure vs. the T+1/T+2 collateral shuffle it replaces

14/14

Foundry tests green — full cross‑chain flow, no faucets

Why this isn't in the pilot decks yet

The composition nobody shipped

Tokenized‑collateral posting is live. Redeeming a yield‑bearing fund at the margin‑call instant, right‑sized is the open ground.

→Trigger. A Data Streams tick trips the call sub‑second — not a poll, not a batch job.
→Right‑size. Redeem only the shortfall. The rest of the fund never stops earning.
→Mobilize. CCIP carries value cross‑chain with no uncollateralized window.
→No double‑pledge. A live registry makes opaque rehypothecation impossible.

Prior art, honestly: JPMorgan met a live CME margin call with tokenized shares; DTCC is building on Chainlink CRE; UBS/SBI demoed atomic fund redemption. All move the token as‑is, or redeem decoupled from margin. The trigger‑bound, right‑sized redemption is the new part.

Chainlink is the load‑bearing wall

Remove any one service and the primitive collapses. Real paths are wired; gated services are labelled mocks — no pretending.

CCIPCross‑chain margin call + USDC settlement

REAL

AutomationStreamsLookup upkeep executes the cure

REAL

Data StreamsSub‑second mark‑to‑market · on‑chain verify

REAL

Proof of ReserveGates collateral on attested backing

MOCK

ACE / ERC‑3643Permissioned institutional transfer

MOCK

Run it yourself

no keys · no faucets · no network

# the whole two‑chain flow through Chainlink's real CCIP + Data Streams simulators

forge test -vvv

✓ 14 passed — e2e cure, right‑sizing, PoR gate, double‑pledge, compliance

# narrated walkthrough with the live numbers you saw above

forge script script/DemoJIT.s.sol -vv

$50k redeemed from a $10m book · $9.95m still earning · position cured