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World's First

The gate fires
before the
blockchain sees it

Every other blockchain analytics platform analyses transactions that have already happened. QCA intercepts the transaction before it ever reaches the mempool — binding it to a verified identity and making a gate decision in real time.

Simulate below
Live Simulation
Pre-Mempool Gate — Intercept. Evaluate. Decide.

The pipeline below shows exactly where QCA intercepts a transaction. The gate fires at step 3 — before any network broadcast.

W
Wallet
Signs tx
→
⊗
QCA Hook
Intercepts call
→
⬡
Gate
Scores risk
→
◈
Ledger
On-chain record
→
M
Mempool
Or blocked
Transaction Input
Quick Load
Risk Signal Overrides
Mixer detected
Flash loan
Sanction cluster
Bridge interaction
New recipient
Large approval
What this simulates
  1. 1.Wallet signs a transaction
  2. 2.QCA hook intercepts eth_sendRawTransaction
  3. 3.10-dimension quantum amplitude scoring
  4. 4.Gate decision: PASS / REQUIRE BIOMETRIC / BLOCK
  5. 5.Forensic record written to on-chain ledger
  6. 6.Transaction proceeds or is stopped — before mempool
Awaiting transaction intercept
Select a preset wallet or enter an address on the left, then click Simulate Gate Intercept to watch the QCA engine fire in real time.
Pre-mempool enforcement Live gate decision Court-ready PDF
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—
—
Risk Score / 10
01
Pre-broadcast interception
The QCA hook intercepts eth_sendRawTransaction at the Web3 provider level — before any bytes reach the Ethereum network. Even a subsequently failed transaction generates a permanent forensic record of the biometric-bound attempt.
No competitor does this
02
Quantum amplitude risk scoring
Ten risk dimensions are modelled as probability amplitudes in a Hilbert space. Co-occurring risk signals interfere constructively — a mixer interaction combined with an unusually large transaction value produces a score that exceeds the simple sum of both signals independently.
Patent pending — Claim 1
03
Self-verifiable on-chain evidence
Every gate decision is written to a hash-chained smart contract on Ethereum. The HMAC-SHA256 commitment, SHA3-256 nullifier, and BLAKE2b-256 ledger hash create a tamper-evident forensic record verifiable by any third party — including courts and defence counsel — without trusting QCA as operator.
Patent pending — Claim 3

Ready to integrate the gate
into your platform?

One REST endpoint. Any EVM chain. Under 500ms response time. The only pre-mempool risk gate in production today.

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