Orphograph

iOS

Anchor from the share sheet.

A small Shortcut installed on your iPhone or iPad places Orphograph next to AirDrop, Mail, and Messages in every share menu. From Photos, Files, Voice Memos, the camera roll — anywhere a share button appears — a single tap registers the file. The bytes themselves never leave the device.

What is shared

The mathematical fingerprint of the file, computed on the device. Nothing more.

What is required

iOS 16 or later. The Shortcuts app, which is preinstalled on every iPhone since iOS 13.

Installation

  1. On the iPhone, open Shortcuts and tap the plus icon to create a new Shortcut.
  2. Add the action Get File from Share Sheet. Set Input Types to Files.
  3. Add Get File Hash. Set Type to SHA-256. The input is the file from the previous step.
  4. Add Get Contents of URL. Set the URL to https://orphograph.com/api/anchor, method POST, headers Content-Type: application/json, body type JSON: { "hash_hex": "<hash from previous step>" }.
  5. Add Show Result with the JSON response — the receipt identifier is the value of the receipt_id key.
  6. Name the Shortcut Orphograph. In its settings, toggle Use with Share Sheet on; set the accepted input to Files.

The Shortcut reads the file with native Apple cryptography on the device. The fingerprint is the only datum that crosses to Orphograph. The Shortcut can be inspected, edited, or removed at any moment; what it does is exactly what is written above.

Using it

  1. Open Photos, Files, or any app with a share button.
  2. Select a file. Tap the share icon.
  3. Choose Orphograph. The Shortcut returns the receipt identifier within a few seconds.
  4. To view the full receipt, visit orphograph.com/r/<identifier> at any time. The Shortcut can be extended to open this URL automatically.

A note on rate-limiting

The Shortcut respects the same tiering as the website. Free-tier devices may anchor three files per twenty-four hours; account-holders with a Pack or Standing Order anchor without restriction once an account API key is added to the Shortcut as an X-Orpho-Api-Key header. The key is created from the account page; see Account.

An Android equivalent is being prepared as a Quick Tile and share-target progressive web app. Notice will be given on this page upon issuance.