Sigil - Sealed Documents

Seal a rate-con, sign a BOL at pickup, capture the GPS-bound POD at the dock. Sigil chains every freight document into a tamper-evident audit log a court can verify.

Sigil is the sealed-records layer underneath a freight move. Sign a rate confirmation. Capture the BOL at pickup with GPS bound into the seal. Photograph the POD at the dock and the consignee signature locks it. Every event becomes a block in a per-load hash chain that anyone, broker, carrier, factor, or a judge in a deposition, can verify at sealedby.com/verify without an account.

Built for carriers tired of arguing over manila-folder paperwork two weeks after delivery. Built for brokers who carry the liability when a load goes sideways and need the trail to hold up. Built for factors who want to underwrite from cryptographic proof instead of a scanned BOL.

Why Sigil is different

• Tamper-evident by construction. Each event in a load, rate-con offered, rate-con agreed, at pickup, BOL signed, GPS pings in transit, at delivery, POD signed, is hashed and chained to the one before it. Edit one event and every later hash breaks. The chain is checked hourly.

• Sealed records that hold up. Final BOLs and PODs are PAdES-signed PDFs with RFC 3161 trusted timestamps. Anyone can check a sealed document at sealedby.com/verify or with our open verifier, no account and no special software required. The proof travels with the document.

• GPS is bound into the seal. Latitude, longitude, accuracy, and source are part of the hashed input for the BOL-signed and POD-signed events. Moving a single coordinate after the fact breaks the chain at that link, and the chain names the broken event.

• Carriers earn reputation on-chain. Reputation is computed from sealed events: on-time delivery rate, completed sealed POD count, months active. New carriers start at zero and build a public, recomputable track record.

What you can do in the app

• Accept and sign rate confirmations
• Sign the BOL at pickup, with device GPS bound to the seal
• Capture POD photos and the consignee signature at the dock with the camera
• Pull the audit chain for any load and share the public verify URL with anyone

What is in the box

• Hash-chained audit log with an hourly integrity check
• Mobile signing, sign with a finger at pickup and at the dock
• Native camera capture for POD, and device GPS bound into the seal
• Public verification page and open protocol (Sigil-Protocol v1.0), no account required to verify
• ESIGN and UETA aligned, see sealedby.com/trust

Open the load, sign it, move on. The chain does the rest.