OTB is a blockchain application underpinned by smart contract and is simple to adopt, easy to use, and quick to come onboard for any communities. OTB main functionalities: • Register files (hashes only) to distributed ledger • Verify the files’ authenticity and integrity with distributed ledger • Allow user to approve/reject/endorse/revoke files on distributed ledger • Display Info Chain during file verification for traceability of the approval / rejection / endorsement / revocation. • Publish track and trace milestone events to distributed ledger • Query track and trace milestone events for a shipment OTB will continue to add on features over time.