日本語 
Leetex Co., Ltd., which develops electronic contract and electronic signature services, has announced its plan to commercialize its electronic contract service “ONE Digi,” which utilizes its proprietary “One-Time Digital Signature” technology, in Indonesia. The plan aims to establish a local subsidiary within the year and begin SaaS sales in March 2027, starting with obtaining a patent for the core technology in April 2026.
This is what President Ogura said in an interview published on August 13, 2026, in the Japanese-language Indonesian newspaper “The Jakarta Nippo” and its online edition.
ONE Digi” is an electronic contract service that utilizes our proprietary “one-time digital signature” technology, which generates unique signature information for each document and signature.
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By storing records of “when, who, and on which document” in a cloud-based signature ledger utilizing blockchain technology, the basis for verifying electronic signatures is placed in an external ledger rather than within the document itself. This allows for verification of the document’s authenticity by checking the electronic original via a QR code, not only from electronic files but also from printed documents.
With traditional certificate authority-based digital signatures, the verification function of the digital signature is lost when the document is printed on paper.
One of the key features of “ONE Digi” is that even after printing a document on paper and handing it over to someone, you can access the electronic original and verify the authenticity of the document.
Source: PRTimes
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