step 1
Connect your exchange
Paste a read-only API key. We verify it’s read-only before touching anything.
- BloFin
- Bybit
- Binance
- OKX
- Bitget
Independent verification · perpetual futures
We don’t trust the screenshot.
We recompute it.
Connect a read-only key. We rebuild your equity curve from the raw exchange records, check it against the exchange’s own balances, and seal the result with SHA-256. You get a link anyone can verify.
Read-only API keys. We can’t trade or withdraw, and keys are never written to disk.
- raw exchange data — not self-reported
- exact decimal math — zero float drift
- deterministic SHA-256 seal
- re-verifiable without the raw data
How verification works
Three steps. The same inputs always produce the same result — that’s what makes it checkable.
step 2
We recompute from scratch
Every trade, fee, and funding payment — independently recalculated in exact decimal math.
equity = Σ realized − fees + funding + transfers
step 3
Share tamper-proof proof
SHA-256 sealed report with a public link. Anyone can verify, no account needed.
seal a3f8c27e…f14b7d
Display is not verification
Other tools show you what a trader or an exchange reported. None of them recompute it.
capabilityPreuvalOthers
- Independent recomputation
- Cryptographic seal
- Read-only keys only
- Free public reports
- Multi-exchange CEX perps
the output
A link, not a PDF
Every verification produces a public report page: the verdict, the recomputed equity curve, reconciliation results, scores — and the seal.
preuval.com/v/a3f8c27e91b40d6a
VERIFIEDBybitJan 1 – Jun 30, 2026
87/ 100
B+
Grade- Trades
- 142
- Return
- +24.6%
- Max DD
- −8.2%
SHA-256 verification seal
Built for the people who get lied to
Traders
“Tired of trust me bro?”
Share a cryptographically verified track record instead of a screenshot.
verified, not claimedProp firms
“Is this application real?”
Screen intake against reconciled exchange records, before you fund anyone.
verified, not claimedCopy-trade platforms
“Whose numbers are these?”
Gate listings on verification. Every ranked strategy carries a re-checkable seal.
verified, not claimedWhat we can and can’t do with your key
Zero credential storage
API keys are wiped from memory the moment the data fetch completes.
Read-only verified
We confirm your key can’t trade or withdraw before we use it.
Full transparency
Every API call we make is logged and shown on your report.
Auto-deletion
Raw data is automatically purged after 7 days — 30 for Pro.
Cryptographic seal
SHA-256 over all inputs — any tampering changes the seal.
Open audit trail
Endpoint log with method, status, and record counts on every report.