Vehicle Service History Platform "Ledra" Officially Released, Adopted by 6 Stores in 1 Month Since Launch
HOLY Inc. has officially released "Ledra," a platform that allows vehicle service history to be checked via NFC tags. Adopted by 6 stores within one month of its launch, it aims to improve transparency and trust in the automotive coating and customization industry.
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- 📰 Published: May 7, 2026 at 22:34
- 🔍 Collected: May 7, 2026 at 14:01
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HOLY Inc. (Headquarters: Minato-ku, Tokyo; Representative Director: Yusuke Horikoshi), which handles automotive coating, customization, and electrical services nationwide, launched "Ledra," a service history platform that allows vehicle-specific service history to be checked from NFC tags, on April 1, 2026.
Ledra is a service that records service information such as coating, PPF, customization, and electrical work linked to vehicles, making it accessible to owners, service shops, insurance companies, and used car distributors. Approximately one month after its launch, 6 stores, mainly in the Kanto region, have adopted the service.
Image of Ledra's public certification page. By holding a smartphone over an NFC tag affixed to the vehicle, service history can be checked on the spot.
■ Development Background — There was no way to prove the fact of service
Car coating is widely offered in Japan for new cars, used cars, and the aftermarket, but there has been no mechanism to objectively prove its content and quality. Paper warranties are still common, and there are countless cases where they are lost when the vehicle is sold or disappear without being passed on to the next owner.
As a result, insurance companies find it difficult to correctly assess vehicle value, and the used car market continues to struggle to reflect the value of services in prices. Furthermore, within the industry, some businesses display unperformed services as performed, and some substandard services are rampant, making it not uncommon for end-users to question, "Is this car really coated?"
Service shops that do good work often find it difficult for their value to reach the market.
Mr. Horikoshi, CEO of HOLY, has long faced these structural issues in the field of automotive coating and customization. "Ledra" was developed as an industry infrastructure to connect insurance, used car distribution, and owners by recording service facts in an unalterable manner.
■ Features of Ledra
Image of Ledra's vehicle history management. History of coating, re-coating, maintenance, etc., can be accumulated and managed chronologically for each vehicle.
1. On-site proof of service history with NFC tags
Simply hold a smartphone over a dedicated NFC tag affixed to any location on the vehicle to instantly check all history, including service date, products used, technician, and warranty period.
No app installation is required, and the system is designed so that the new owner can seamlessly inherit the history when the vehicle is transferred.
2. Blockchain for easy assurance of record authenticity
Service data is recorded on-chain on Polygon, making it difficult to tamper with after recording and maintaining it as verifiable history for third parties.
It adopts an EVM-compatible design with a view to future migration to Ethereum mainnet, etc., providing a flexible foundation that can adapt to changes in the ecosystem and advanced recording requirements.
3. From 9,800 JPY per month, designed for on-site completion
Available as a SaaS for service shops from 9,800 JPY per month. It adopts a mobile-first design that allows service staff to input service details from their smartphones and complete records on the spot.
No additional investment in PCs or dedicated equipment is required, minimizing the burden of introducing it into existing workflows.
4. API design with future connection to insurance and used car appraisal in mind
We are proceeding with API design to provide service history data to insurance companies and used car distributors. In the future, we aim for it to function as a cross-industry data infrastructure that enables optimization of insurance premiums and reflection of service history in used car appraisals.
■ Why NFC x Blockchain?
Image of Ledra's service certificate/confirmation screen. Service history is preserved as a certificate, and third parties can also check it via QR codes or public pages.
While QR codes and paper warranties exist as means to record service history, both are easily duplicated or forged and lack durability to remain linked to a vehicle over the long term. By using dedicated NFC tags, the system is designed to be easier to operate as a physical proof medium linked to the vehicle compared to paper warranties or simple QR codes.
In addition, even if the recording medium itself is robust, if the data itself can be rewritten, its value as proof is lost.
Ledra adopts an EVM-compatible chain design, and for current production operations, it uses Polygon, which excels in low cost and high-speed processing. Depending on future recording requirements and changes in the ecosystem, expansion to Ethereum mainnet, etc., is also envisioned.
Service data remains permanently verifiable by third parties and is guaranteed to be unalterable by the intervention of service shops, HOLY, or third parties.
NFC's physical authenticity
Ledra is a service that records service information such as coating, PPF, customization, and electrical work linked to vehicles, making it accessible to owners, service shops, insurance companies, and used car distributors. Approximately one month after its launch, 6 stores, mainly in the Kanto region, have adopted the service.
Image of Ledra's public certification page. By holding a smartphone over an NFC tag affixed to the vehicle, service history can be checked on the spot.
■ Development Background — There was no way to prove the fact of service
Car coating is widely offered in Japan for new cars, used cars, and the aftermarket, but there has been no mechanism to objectively prove its content and quality. Paper warranties are still common, and there are countless cases where they are lost when the vehicle is sold or disappear without being passed on to the next owner.
As a result, insurance companies find it difficult to correctly assess vehicle value, and the used car market continues to struggle to reflect the value of services in prices. Furthermore, within the industry, some businesses display unperformed services as performed, and some substandard services are rampant, making it not uncommon for end-users to question, "Is this car really coated?"
Service shops that do good work often find it difficult for their value to reach the market.
Mr. Horikoshi, CEO of HOLY, has long faced these structural issues in the field of automotive coating and customization. "Ledra" was developed as an industry infrastructure to connect insurance, used car distribution, and owners by recording service facts in an unalterable manner.
■ Features of Ledra
Image of Ledra's vehicle history management. History of coating, re-coating, maintenance, etc., can be accumulated and managed chronologically for each vehicle.
1. On-site proof of service history with NFC tags
Simply hold a smartphone over a dedicated NFC tag affixed to any location on the vehicle to instantly check all history, including service date, products used, technician, and warranty period.
No app installation is required, and the system is designed so that the new owner can seamlessly inherit the history when the vehicle is transferred.
2. Blockchain for easy assurance of record authenticity
Service data is recorded on-chain on Polygon, making it difficult to tamper with after recording and maintaining it as verifiable history for third parties.
It adopts an EVM-compatible design with a view to future migration to Ethereum mainnet, etc., providing a flexible foundation that can adapt to changes in the ecosystem and advanced recording requirements.
3. From 9,800 JPY per month, designed for on-site completion
Available as a SaaS for service shops from 9,800 JPY per month. It adopts a mobile-first design that allows service staff to input service details from their smartphones and complete records on the spot.
No additional investment in PCs or dedicated equipment is required, minimizing the burden of introducing it into existing workflows.
4. API design with future connection to insurance and used car appraisal in mind
We are proceeding with API design to provide service history data to insurance companies and used car distributors. In the future, we aim for it to function as a cross-industry data infrastructure that enables optimization of insurance premiums and reflection of service history in used car appraisals.
■ Why NFC x Blockchain?
Image of Ledra's service certificate/confirmation screen. Service history is preserved as a certificate, and third parties can also check it via QR codes or public pages.
While QR codes and paper warranties exist as means to record service history, both are easily duplicated or forged and lack durability to remain linked to a vehicle over the long term. By using dedicated NFC tags, the system is designed to be easier to operate as a physical proof medium linked to the vehicle compared to paper warranties or simple QR codes.
In addition, even if the recording medium itself is robust, if the data itself can be rewritten, its value as proof is lost.
Ledra adopts an EVM-compatible chain design, and for current production operations, it uses Polygon, which excels in low cost and high-speed processing. Depending on future recording requirements and changes in the ecosystem, expansion to Ethereum mainnet, etc., is also envisioned.
Service data remains permanently verifiable by third parties and is guaranteed to be unalterable by the intervention of service shops, HOLY, or third parties.
NFC's physical authenticity