Tamper-proof audit trails that satisfy examiners in minutes, not weeks. Seal approvals, evidence, rationale, and review into a cryptographic record for fraud, AML, and financial compliance workflows.
Your system blocks, approves, files, or escalates
Attestr permanently records it with tamper-proof integrity
Pull a verified evidence packet in seconds when examiners ask
An examiner asks why you blocked a payment. You need cryptographic proof, not a spreadsheet export. Attestr seals every fraud decision — model scores, reason codes, reviewer actions, and timestamps — into an examiner-ready audit trail.
From decision to complete audit trail in four steps.
Your system makes a decision — approve, block, escalate, file, or review. Just send it to Attestr.
Attestr hashes it, chains it to the previous record, signs it with Ed25519, and stores it in an append-only ledger.
Months later, an examiner, auditor, or regulator asks about a specific decision. Your analyst opens the investigation view.
A cryptographically verifiable evidence packet proves exactly what happened, when, and why. Tamper-proof.
Six layers of protection. Zero chance of tampering.
Every decision is permanently linked to the one before it. Change one record and the entire chain breaks — instantly detectable.
Know exactly who made each decision and when. Every record is digitally signed and independently verifiable.
Prove any single record is authentic without exposing your entire dataset. Perfect for regulatory inquiries.
Records cannot be altered or removed after the fact — by anyone, including Attestr. This is enforced at the database level.
Only authorized systems can write to your ledger. Every request is authenticated and time-limited to prevent replay.
Complete separation between organizations. Your audit trail is fully independent — no cross-contamination, no shared keys.
From “trust us” to mathematical proof.
When an examiner asks about a decision, you don't explain — you prove. Evidence packets contain everything needed for independent verification.
The exact decision your system made, with the risk score and reason codes.
When the decision was made, down to the millisecond. Independently verifiable.
Mathematical proof that no records were added, removed, or changed in the sequence.
Anyone can verify the proof using our public key — no Attestr account needed.
One-click export to examiner-ready PDF format with all verification details included.
No vendor lock-in: Evidence packets are self-contained. Examiners verify them independently — they never need to contact Attestr.
Prove the input, not just the output.
Can you prove the data that fed the decision wasn't tampered with? Dual attestation closes this last trust gap.
Your fraud engine says it blocked a transaction. But can you prove the inputs weren't changed after the fact? An insider could alter the transaction data before the engine saw it — and you'd never know.
Gap: No proof the data was authentic
Both the input data AND the decision are independently sealed. If anyone changes either one, the mismatch is instantly detectable. Full chain of custody from raw data to final decision.
Proof: Input and output are cryptographically linked
Regulators can verify that the data feeding your fraud model was the real, unaltered transaction — not a reconstructed version.
Even if someone with database access changes the raw data, the sealed fingerprint reveals the tampering.
Source data, fraud decision, and audit record — all mathematically linked. No gaps, no assumptions.
Proves the decision record hasn't been altered after it was saved.
Proves both the decision AND the original input data are authentic. Full chain of custody.
Dual attestation is optional. Records without it are still fully protected by single attestation. Adding it is a one-field upgrade — no workflow changes needed.
Your ledger doesn’t just record. It watches.
Continuous monitoring catches problems before examiners do. Get alerted when your fraud operations change — no manual review needed.
Are fraud scores slowly shifting? Get alerted before it becomes a problem.
Monitors your fraud model's scoring patterns and flags when scores start trending higher or lower than normal.
Approval rates changed overnight? Know immediately.
Tracks the ratio of blocked vs. approved decisions. Alerts you when ratios deviate from normal patterns.
Missing records in your audit trail? We'll catch it.
Monitors the flow of decisions being recorded. If records stop arriving or slow down unexpectedly, you'll know right away.
Your fraud model's behavior changed — here's how.
Tracks which fraud rules are triggering and alerts when the mix changes significantly, helping you spot policy or model updates.
Track which model version made each decision.
Automatically detects when a new fraud model is deployed and shows how decision patterns change with each version.
Unusual volume surges flagged in real-time.
Catches unexpected spikes in transaction volume that could indicate batch errors, attacks, or integration problems.
All monitoring runs on your infrastructure.
No data is sent to external services. All analysis happens locally using proven statistical methods. Fully auditable — no black boxes.
How it works in practice.
See how Attestr transforms common audit scenarios from weeks of scrambling into minutes of confidence.
Weeks pulling logs, rebuilding timelines, and explaining your process to skeptical examiners.
Pull a verified evidence packet in seconds. Examiner verifies it independently. Done.
Reconstruct SAR filing rationale from emails, notes, and scattered systems.
Every triage, escalation, and filing decision is sealed and chained. Examiner-ready.
Manual review of approval workflows across spreadsheets and email chains.
Every exception, override, and supervisory approval is sealed and provable.
Up and running in under 5 minutes.
Attestr plugs into your existing fraud workflow. No rip-and-replace, no new infrastructure, no lengthy onboarding.
Your fraud engine already makes the decision. Just send it to Attestr with a single request. We handle the rest — hashing, chaining, signing, and storage.
Cloud-hosted and fully managed. No servers to provision, no databases to maintain, no security patches to apply. We handle uptime and scaling.
Integrates with any fraud engine, rules platform, or ML pipeline. Language-agnostic REST API — if it can make an HTTP request, it works with Attestr.
What happens when the examiner calls.
Write SQL queries to reconstruct decision logs from scattered tables and email threads
Format CSVs, cross-reference timestamps, fill gaps in the audit trail
Explain log inconsistencies to a skeptical examiner in writing
Re-pull data after examiner finds discrepancies in your first export
Pray the timestamps are close enough and the examiner doesn’t dig deeper
Plus the stress. Plus the risk. Plus the billable hours.
Examiner requests evidence for decision evt_abc123
Open dashboard, search event_id, click “Export Evidence”
Send the PDF. Hash chain, signature, Merkle proof — all included.
Examiner verifies independently using the public key. No questions.
Go back to building.
Mathematical proof. No explaining. No stress.
You shouldn't audit your own decisions.
Neither should your employees.
Internal audit trails fail the one test that matters: independence. If the people who made the decision also control the records, no compliance audit will accept them as evidence.
Your engineers have database access
They can ALTER, UPDATE, or DELETE any record
Your ops team controls the signing keys
They can re-sign tampered data and nobody would know
Your infrastructure, your liability
An examiner has zero reason to trust logs you control
Attestr separates the decision-maker from the record-keeper. Your engine makes the call. An external audit trail proves it. Evidence packets can be verified offline with a public key — no trust in Attestr required. That's the point.
Everything you need to know.
No. Think of it like a tamper-evident envelope: once sealed, any attempt to open it leaves obvious marks. Blockchains use the same idea but require thousands of computers to agree before anything is confirmed — which is slow and expensive. We use the same tamper-proof math without the overhead, so your records are locked in milliseconds, not minutes, with no transaction fees.
No — and this is by design. Every record gets a unique digital seal, like a wax stamp on a letter. If anyone changes even a single character, the seal breaks and it's immediately obvious. We can't quietly alter anything without the math exposing it. Better yet, you can verify any record yourself using free, standard tools — you don't have to take our word for it.
Your evidence works like a printed certified document — it doesn't need to call home to be valid. Even if Attestr went offline tomorrow, an examiner could still verify every record you've ever exported. You can also run our open-source verification tool on your own servers for complete independence.
Most teams are up and running within an hour. You send us your decisions — fraud blocks, AML actions, compliance approvals — via a simple web request, and we handle all the cryptographic heavy lifting behind the scenes. No new infrastructure, no lengthy onboarding. If your system can send an email, it can work with Attestr.
No. Evidence packets are self-contained — think of them like a certified document with a verification code printed right on it. Examiners can confirm authenticity using free, standard tools and our publicly available key. No account, no subscription, no vendor dependency. The proof travels with the record.
Never. Think of it like separate safe deposit boxes — same bank vault, but no one can see inside yours. Your records live in their own private chain, completely separate from every other customer's data. Zero cross-tenant visibility, no exceptions.
No. Attestr seals any high-stakes decision — fraud blocks, SAR filings, compliance exceptions, supervisory approvals. If your team makes a decision that might need to be proven later, Attestr records it.
Yes. You can run separate ledgers for fraud, AML, and compliance within the same tenant — or use a single ledger with decision-type filtering. Each workflow gets its own evidence trail.
Simple, predictable pricing.
Start free. Scale when you're ready. No hidden fees. No per-seat charges. You pay for records ingested.
For prototyping and evaluation.
For teams in production that need audit-ready evidence.
For compliance-heavy operations with examiner scrutiny.
Your team already makes the right calls. Attestr gives you the cryptographic audit trail to prove it — to examiners, regulators, and your board.
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