Verifiable evidence infrastructure
Receipts you can prove.
Web2 simplicity.
Attest turns documents, events, and AI agent actions into independently verifiable receipts. No wallets, no tokens, no seed phrases. Not for you, and not for the people who verify.
Why Attest
Evidence is manual, PDF-based, and trust-me. It doesn't have to be.
In a world where anything can be generated, proof of what happened becomes infrastructure.
Document receipts
Prove a contract, report, or deliverable existed at a point in time and hasn't been altered, without ever uploading its contents.
AI agent accountability
Every agent action gets a receipt: what ran, when, under whose authority, against which policy. Provable after the fact.
Audit-grade evidence
Receipts render as plain-English certificates your auditor can verify in one click. No blockchain vocabulary anywhere.
Content stays private
Only a cryptographic fingerprint leaves your systems. We can't read your documents, and neither can anyone else.
Verification that outlives us
Receipts anchor to public blockchain infrastructure. If DataHubz disappeared tomorrow, your evidence would still verify.
Corrections, not deletions
Mistakes are superseded by correcting receipts: an append-only trail, exactly like a proper accounting ledger.
One POST request. Permanent proof.
Hash locally, send the fingerprint, get a receipt. Batched anchoring keeps the cost of proof at a fraction of a cent: flat, predictable, and billed like any other SaaS.
$ curl -X POST https://attest.datahubz.com/api/v1/receipts \ -H "Authorization: Bearer ak_live_..." \ -d '{ "kind": "agent_action", "sha256": "9f86d081884c7d65...", "claim": "Agent invoice-bot filed VAT return Q3", "metadata": { "agentId": "invoice-bot", "authorizedBy": "cfo@acme.com" } }' # response { "id": "rcpt_01JD...", "status": "pending", ... }