Capture & Seal
- Open Picture or Video from the hub.
- Frame your subject and tap the mechanical shutter control.
- FactLockCam seals the capture on-device—SHA-256 fingerprint, AES-GCM encryption, and a transactional journal that records prepare/commit integrity.
- When online, integrity metadata can sync to the public ledger; offline captures stay marked pending sync until retried.
Archive & Inspect
The Archive tile lists sealed items in grid or chronology view. Tap an item to inspect metadata, view a thumbnail, decrypt the full asset on demand, export a certificate, or Send Proof.
Send Proof
- Choose Send Proof from the asset inspector or archive action sheet.
- Create a password for this package. Share that password separately.
-
Share the generated
.flcprooffile,proof.json, and certificate PDF through the iOS share sheet (Messages, Mail, AirDrop, Files). -
Tell the recipient to open
factlockcam.com/open, choose the
.flcprooffile, and enter the password.
The unlock page reads the file from the recipient's device. Nothing is uploaded. Password unlock is not a chain attestation — after unlock, the page can verify the signed capture manifest offline and, optionally, on Polygon.
Backup & Restore
FactLockCam is non-custodial, so backup is yours to manage. Two files cover it, and Account & Settings → Backup & Restore gathers every action in one place. FactLockCam never holds either file or its password.
1. Back up your keys (.factlock)
- Open Account & Settings → Backup & Restore → Export archive keys.
- Choose a backup password (8+ characters) and confirm it.
-
Save the
.factlockfile to Files, iCloud Drive, or another location you control. It contains your signing key and archive encryption key—not your photos or videos.
Keys are stable for an install, so one export covers every capture until you Lock, reinstall, or change devices. The panel shows when keys were last exported.
2. Back up sealed items (.flcproof)
- Open any item in Archive and choose Export sealed backup.
- Set a password for that file.
- Save the
.flcproofcontainer wherever you keep your records.
Export sealed backup writes the same container Send Proof uses, but for you. It does not consume a Send Proof share. Each file holds one item's original media, title, description, and signed capture record. If you lose its password, that copy cannot be recovered.
3. Restore
- Keys: after Lock archive or a reinstall, the locked screen asks for your
.factlockfile and password. Sign in with the same email first on a reinstall. Once unlocked, the app can read any sealed files still on the device or in cloud sync. - Sealed items: open Account & Settings → Backup & Restore → Restore
sealed backup (or the Restore backup tile in an empty Archive), choose the
.flcprooffile, and enter its password. The item returns with its original fingerprint and capture record. No new seal is created and no quota is used.
A restored item keeps the wallet that signed it. A package sealed by another account can still be restored; it appears as Historical and is never re-anchored by you.
Account & Burn
Account deletion (Burn Account) requires double confirmation and invokes
perform_full_burn to purge cloud-linked profile data. Local encrypted files are
wiped from the device as part of the burn flow.