DepEd Iligan City · Document tracking
Every document, accounted for.
HashBond gives each document one tracking code and a history that can't be quietly rewritten. Every action from intake to release is sealed with HMAC-SHA256 and chained to the one before it.
Try breaking a recordHB-7X9K-2M4L
Certificate of Employment request
- Received at Records counter
a41f…09c2 - Routed to Personnel
7be3…d518 - Signed by SDS Office
c02a…6e7f - Released to client
19d8…b3a0
HB-01 · How it works
One code from intake to release.
hashn = HMAC-SHA256(key, hashn-1 | action | note)
-
Intake
The front desk logs the document and prints a slip with its tracking code, like
HB-7X9K-2M4L. -
Every action is sealed
Routing, signing and release each add an entry. HashBond signs it with the office key and the hash of the entry before it.
-
Anyone can check
Clients type the code at the kiosk or scan the slip. If a past entry was changed, its seal stops matching and the record freezes in red.
HB-02 · Tamper demo
Change one entry and watch the chain break.
This runs the same HMAC-SHA256 math in your browser, with a demo key. Edit any note below.
HB-03 · In the office
Built for the counter, the kiosk and the records room.
- Client kiosk
- Clients check their own document's status without lining up at the window.
- QR tracking slip
- Proof the document was received, with a code anyone can verify later.
- Staff dashboard
- Pending releases and frozen records in one list, so nothing sits unnoticed.
| Document | Status |
|---|---|
HB-7X9K-2M4L | Verified |
HB-3P8J-1Q7R | Released |
HB-5K2D-8Q1Z | Frozen |
HB-2N5T-9W3B | Processed |