Document-hash signing

Bind one person to exact bytes.

Successful result$0.30Charged only when this step verifies

Upload documents for Alentra to hash, show, and bind to the wallet presentation.

Use in the flow builder →

Small request surface

Input on the left.
Fact on the right.

Alentra captures and reports cryptographic facts. Your application decides what the result means and whether the session continues.

RequestPOST /v1/sessions

{
  "steps": [
    {
      "primitive": "sign",
      "params": {
        "document_ids": [
          "contract"
        ]
      }
    }
  ]
}

Completed stepwebhook

{
  "primitive": "sign",
  "result": {
    "document_hash": "sha256:…",
    "signature": "wallet-bound evidence"
  },
  "audit_id": "sess_…_0"
}

Business result

What you receive.

The business receives the ordered file hashes, signed manifest commitment, signer result, and audit identifiers.

Evidence boundary

What remains provable.

Original encrypted documents and completed evidence remain immutable. Ordinary signer download access ends 48 hours after the terminal event.

Where it fits

A verb,
not a vertical.

Alentra keeps primitives horizontal. Your product owns the industry-specific policy around them.

01Agreements

02Authorizations

03High-value instructions

Credential profiles

Route it through
the right credential.

Credential availability varies by route. These profile pages show the exact countries, wallets, trust requirements, and rollout state.

mdocUS mDL

An ISO mobile driver’s licence issued by a participating US jurisdiction.

View routes →mdocGoogle ID Pass

A Google Wallet identity credential profile available in selected countries.

View routes →mdocAadhaar

The Aadhaar credential route listed for Google Wallet in India.

View routes →mdocUS Digital ID

A passport-derived Digital ID presented from Apple Wallet by eligible US holders.

View routes →mdoc+jpkiMy Number Card

Japan’s My Number Card credential route through Apple Wallet.

View routes →mdocEUDI PID

Person Identification Data presented by a compatible EU Digital Identity Wallet.

View routes →

Composition is the product

Add sign to a complete flow.

Order multiple wallet-attested actions under one bound subject and one audit chain.

Compose a session