The birth of Bitcoin, which began operating in 2009, made peer-to-peer transactions secure and unmanned by removing the need for intermediaries in financial transactions, and it had a great impact on the world. Its core technology was blockchain itself, and from around 2016, the publication of many books led people around the world to recognize it as a promising fintech technology.
Even before books on the subject began to be published in Japanese, Sees Co., Ltd. was already convinced that blockchain was a technology that should be used around the world in the near future, and that it was a data security technology applicable not only to the limited field of fintech but to every industry. Ahead of other companies, Sees began research and development around 2014.
From around 2020, blockchain moved beyond topics centered on crypto assets and fintech and finally began to be recognized for its full-scale value for industrial use. The situation surrounding blockchain is strikingly similar to the way Linux, an open-source OS, was born and quietly but deeply spread throughout industry.
Over many years, Linux spread widely into the depths of society as an industrial OS, and today ordinary people rarely have occasion to be aware of Linux.
In reality, however, most industrial equipment, from control devices and communication infrastructure to medical equipment and home appliances, runs stably on Linux.
From ticket vending machines, automatic ticket gates, and train control systems at stations to the TVs and audio equipment people enjoy at home, Linux has now permeated people's daily lives.
Sees predicted as long as 12 years ago that blockchain would follow exactly the same path and become a familiar presence that people use without being aware of it, and has been acting on that prediction ever since.
The use of blockchain for crypto asset payments and fintech is merely one application.
What is essentially and truly excellent about blockchain is its highly perfected distributed processing structure, in which transactions are completed securely without depending on any specific giant server.
Books praise its tamper-proof encryption technology, but what Sees has recognized is that blockchain is the culmination of perfect distributed processing technology.
This perfected distributed processing technology can be achieved easily, simply by introducing blockchain, without modifying complex existing system configurations. This brings unparalleled benefits to industry, which constantly pursues higher availability and stability.
One feature of distributed processing comes down to this: even if a single server on the network stops due to an unexpected accident or failure, the other nodes immediately cover for it, and the system as a whole keeps running without stopping, as if nothing had happened.
In addition, because the data itself is distributed across multiple locations and held in an identical state, even if the data were completely erased from one server, the data of the system as a whole would never be lost.
Furthermore, if this distributed processing mechanism can be reproduced not only in large dedicated server clusters but also down to the chip level, in small terminals deployed on site and inside equipment, it will be possible to achieve overwhelming processing speed, stability, and fault tolerance at the same time, on a level incomparable to anything before.
Having been among the first to be convinced of the certain future and potential of blockchain as the core technology that will support the industrial infrastructure of the future, Sees has consistently devoted itself to the research and development of blockchain as a future data security technology specialized for industrial use, since before the word "blockchain" began to spread in the world.
Then, in 2018, "Sees Blockchain" was born: a new data security system for industry that highly integrates proprietary middleware, developed around a configuration similar to Ethereum and the concept of a distributed file system, with a dedicated Linux.
The history leading up to the completion of "Sees Blockchain" was itself a journey of sincerely confronting the challenges that conventional blockchain technology faced in industrial application and solving them through creativity and technical capability.
It is an approach truly unique to Sees, a company that has worked on transportation and communication infrastructure and now excels at driving business with intellectual property strategy at its core.
At the start of research and development, Sees determined that it would be impossible to protect confidential information, the lifeline of a company, and the stable operation of systems if all data remained open to an unspecified number of people, as with conventional public blockchains. Sees therefore began designing with the basic concept of an industrial private blockchain specialized in protecting stable system operation and the data itself, rather than indiscriminately disclosing data.
For the consensus algorithm, the most important agreement mechanism in distributed processing, Sees eliminated mining, an enormous computational competition among unspecified participants, and adopted PoA (Proof of Authority), in which only strictly approved validator nodes generate blocks, as is possible only with a private blockchain. This eliminated the enormous computation of mining and gave Sees an extremely fast distributed processing method.
PoA is a consensus method in which a specific group of trusted nodes verify and approve recorded data in random order and generate blocks smoothly and at high speed.
By building and operating the network only with trusted nodes, as is possible only with a private blockchain, Sees built a master model of blockchain that perfectly prevents unauthorized intrusion from outside and offers the solid security and high performance needed for industrial use.
Having thus established a robust blockchain foundation, Sees has used its creativity and technical capability to solve the technical issues that stood as practical barriers to introducing blockchain into real business settings.
The first challenge Sees faced in creating "Sees Blockchain" was that there was no mechanism for safely operating a single blockchain with multiple applications.
It had been common practice for conventional blockchains to be operated individually for a single purpose or a single application.
Even if one attempted to share the same blockchain among multiple different applications to reduce development costs, there was no technical means of keeping the applications independent of one another. This posed a security risk fatal to companies: the operations and data of one application could easily be viewed from other applications.
To solve this problem, Sees built a blockchain foundation and proprietary middleware, and created the "Multi-DApps Platform," a mechanism that allows multiple different applications to safely share a single blockchain foundation via APIs.
This "Multi-DApps Platform" is designed to completely block data viewing and interference from other applications through access control, while sharing the same blockchain foundation.
This has enabled companies to achieve extremely secure system operation on a per-application basis while keeping infrastructure costs to a minimum.
The benefit of the "Multi-DApps Platform" is that multiple companies can share a single blockchain foundation, allowing even small and medium-sized enterprises to introduce it without a heavy burden. It has also made possible service offerings such as blockchain providing.
The next challenge Sees faced was handling large-volume data, such as videos, images, and huge sensor logs, and the accompanying risk of information leakage.
Existing blockchains are designed specifically to record lightweight data, such as text data and financial transaction ledgers.
For this reason, recording large videos or images directly on a blockchain was considered technically almost impossible.
To work around this problem, a method has been widely adopted in which the actual data is stored in an ordinary external database or server, and only proof of the data's existence and its reference location are written to the blockchain.
However, when handling corporate confidential information or personal information, this method lacked a complete mechanism for both preventing tampering with the data itself and preventing leakage through advanced encryption and access restrictions. The risk remained that data on external servers could be replaced, or that information could leak through gaps in access permissions.
Sees therefore created and established its own "Encrypted, Split, and Distributed File System," which encrypts the actual data to a high level in advance, splits it into small pieces, stores them distributed across the network, and records only the hash values generated from those data pieces on the blockchain to detect tampering.
By combining advanced encryption and split, distributed storage of the actual data with strict tamper detection by blockchain, Sees made it possible to store even large volumes of data securely and at low cost, achieving both advanced information security and stronger compliance for companies at the same time.
In addition, general-purpose OSs such as server Linux have conventionally been used as-is as the OS for building and running nodes.
However, a general-purpose server OS runs various background processes, such as web server and database functions, and contains many unnecessary functions not directly related to blockchain operation.
During demonstration tests, Sees discovered a problem: these unnecessary functions constantly strain CPU and memory resources, and as a result, the high processing performance and stable operation that blockchain should inherently have are significantly impaired.
Furthermore, Sees actually faced serious problems: the frequent OS security updates inherent to a general-purpose OS increased on-site operating costs, and on small devices with limited processing power and specifications, the OS itself was too heavy to even run.
To fundamentally solve the resource inefficiency and processing delays caused by general-purpose OSs, Sees independently developed "Sees Blockchain Linux," stripped down to only the functions necessary for running blockchain and specialized in the minimum required functions.
This dedicated Linux comes in three optimized types to suit the application and hardware scale: "Full Node Type," "Light Node Type," and "Embedded Type."
In particular, the creation of the lightweight Light Node Type and Embedded Type has made it possible to run blockchain nodes at extremely high speed and stably, even on off-the-shelf microcontroller boards and inside IoT devices, where blockchain nodes could never have run before.
As a result, Sees succeeded not only in significantly reducing hardware product costs but also in drastically reducing the on-site burden of operation management and maintenance after introduction.
After the creation of "Sees Blockchain," the barriers to entry for engineers and the development workload at system development sites stood as very major challenges.
To develop conventional blockchain applications, it was necessary to learn blockchain-specific development languages such as Solidity, and to code extremely advanced and specialized node integration processes, including complex cryptographic knowledge, digital signing of transactions, and dynamic calculation and management of network gas fees (transaction fees).
For web engineers familiar with general web systems and corporate core systems, the lack of the standard REST APIs (Application Programming Interfaces) and development kits (SDKs) they use every day was a hopeless barrier when integrating existing systems with blockchain or adding new functions.
To fundamentally break down these hurdles in blockchain application development, Sees independently developed and created the "Sees Blockchain Development API/SDK," which includes familiar REST development APIs and various software development kits (SDKs).
Sees generalized every basic function required for blockchain into an easy-to-use form, from basic operations such as recording, updating, and retrieving data and blocking references by restricting viewing, to checking crypto asset balances and processing remittances.
This has enabled ordinary web engineers without special blockchain skills to intuitively build decentralized applications (DApps) that run on blockchain, without having to be aware of complex cryptographic processing or specialized node integration.
With fast integration of functions into existing systems and easy custom development now possible, productivity at development sites has improved dramatically.
Sees also developed the "Hakoniwa System," a blockchain learning tool that incorporates these APIs and is customized for learning, and by holding its own courses and seminars for engineers, has made a major contribution to training the next generation of blockchain engineers and spreading the technology throughout industry.
This "Sees Blockchain Development API/SDK" has already earned high praise and a proven track record even at financial institutions that support real social infrastructure.
As a specific example, it was adopted as the backend system for a service application at a shinkin bank (a Japanese cooperative regional financial institution).
The "Sees Blockchain Development API/SDK" was adopted as a highly reliable application that securely holds important and sensitive confidential information requiring extremely strict management, such as users' wills and rights relationships, and reliably preserves it for the future without it ever being tampered with.
The challenges of introducing the technology did not stop at development languages and APIs.
A major obstacle in business settings was the enormous development cost and preparation time incurred when building a system from scratch.
In typical blockchain development, smart contracts (self-executing programs) had to be built completely from scratch for each company and use case, which required huge development costs and an enormous preparation period ranging from several months to several years.
The absence of proven, trusted application bases (ready-made contracts) that could be introduced and put into operation immediately on site strongly hindered the rapid business expansion of companies that value speed.
To address this challenge, Sees analyzed general-purpose use cases frequently required at diverse industrial sites, such as traceability management, various quality assurance records, secure video distribution, and complex project management, and packaged them in advance as a rich set of ready-made contracts ("Sees Pre-packaged Blockchain").
Adopting companies do not need to develop programs from scratch. Simply by customizing the user interface to fit their own business workflows, they can immediately begin operating it as a practical system.
As a result, Sees not only dramatically shortened the development period before introduction but also achieved an overwhelmingly low price and short delivery time, keeping development costs to 30% or less of those for building from scratch.
For Sees, the dramatic weight reduction and efficiency improvement achieved by creating the blockchain-dedicated Linux became a major stepping stone, making it possible to extend the application of blockchain, which had until then been confined to high-performance server clusters in the cloud, all the way down to the chip level at once.
The first innovative result of this was the birth of the "Blockchain Gateway," which implements a node directly inside a small hardware terminal.
In conventional system configurations, data generated on site had to pass through internet lines crowded with an unspecified number of users before being sent to and recorded on a blockchain in the cloud, and serious security risks such as hacking, data eavesdropping, and man-in-the-middle attacks lurked in that communication process.
However, by installing this "Blockchain Gateway" at an office or factory site and connecting it to the local LAN, data can be recorded securely and directly on the blockchain from on-site PCs and terminals, entirely within the local network and without going through the internet at all.
This has created an extremely secure data-sharing environment that structurally and completely avoids the risk of cyberattacks launched from the external internet.
This "Blockchain Gateway," which combines advanced security with on-site convenience, has already been introduced at a chemical trading company.
It is provided as a foundational service application for sharing product information and transaction data flowing through the supply chain securely and quickly, and contributes greatly to improving on-site compliance and operational efficiency.
Sees also anticipated situations where a stable local LAN connection is not available, such as business trip destinations and outdoor work sites, and created the "Blockchain Transformer," which functions as a node on the spot simply by connecting a USB dongle to a PC and borrowing its network environment.
This makes it possible to access the blockchain environment securely from anywhere, simply by plugging the USB dongle into a PC.
For Sees, the challenge does not end with simply adding node functions to existing terminals.
Aiming for the ultimate in edge computing and the automation of all industrial equipment, Sees went on to develop the "Blockchain Chip," which implements blockchain node functions directly on an ultra-compact hardware chip.
By incorporating this Blockchain Chip, on-site sensors, surveillance cameras, manufacturing equipment, and transport equipment themselves have evolved into blockchain nodes that independently verify and record data without relying on external servers.
Then, as blockchain penetrated to the very edges of society through the miniaturization of terminals and their conversion into chips, the last and most difficult challenge Sees arrived at was the vulnerability of the transmission path at the communication level, before data reaches a node.
The existing two-layer structure of Layer 1 (main chain) and Layer 2 (sidechain), which increases processing capacity, was effective in solving scalability (processing capacity limit) problems within the blockchain.
However, no matter how robust the inside of the chain is, there is no mechanism to guarantee the security of the transmission path itself, through which data is sent from IoT terminals and sensors to nodes.
If transmitted data is illegally tampered with in transit, or false data is sent from a spoofed terminal disguised on the network, the blockchain cannot determine whether the data is legitimate, and the fraudulent data is recorded as-is as tamper-proof data. This fatal loophole remained.
To fundamentally overcome this vulnerability in the transmission path, Sees built its own Layer 3 (Hashchain), which links hash values together like a chain at the level of the smallest unit of communication, in addition to Layer 1 (main chain) as the foundation and Layer 2 (sidechain), which aggregates data with high processing capacity.
With the establishment of this world-unique three-layer structure, when data is sent from IoT terminals and various sensors to nodes, it has become possible to perfectly prove, at the communication stage, the continuity from the moment the data was sent, the integrity of its content, and the legitimate identity of the terminal that sent it.
This has completed a truly advanced and perfect platform for industrial use, which instantly guarantees the reliability of the primary data generated on site along the transmission path and writes it directly to the blockchain without allowing any tampering or spoofing along the way.
Having completed Sees Blockchain, the blockchain-dedicated Linux, the hardware implementation of blockchain, and the Layer 3 Hashchain as the ultimate data transmission security platform, Sees moved on to the industrial use of NFTs (non-fungible tokens) as a next-generation technology to directly support more advanced and complex value transactions and fluid business processes in the real world, and to the development of the patented technology "Continable NFT" (*a portmanteau of "Continue" and "Able"), which takes NFTs a step further.
In the industrial field, handling NFTs securely itself required advanced technical solutions.
In conventional, standard blockchain development, the mainstream implementation for handling NFTs was to execute crypto asset payment processing and NFT ownership transfer processing as separate programs and forcibly link them on the application side.
However, this method created security vulnerabilities, such as hacking that exploits gaps between web applications and the blockchain, and extortion of tokens through unauthorized access, and had the drawback of being an easy target for attacks.
On the other hand, using multi-token standards (such as ERC-1155) that can execute payment and NFT transfer simultaneously in a single program on conventional public chains leads to other problems: enormous gas fees, and the need for advanced know-how in implementing complex smart contracts.
"Sees Blockchain" fully integrates smart contracts compatible with these multi-token standards (such as ERC-1155) into the blockchain foundation.
As a result, Sees established secure NFT wallet processing (a proprietary contract) that completes the two processes of crypto asset payment and NFT rights transfer securely and irreversibly within a single transaction, with no risk of tampering along the way.
By fundamentally eliminating vulnerable linking on the application side and combining a fast, low-cost platform environment with APIs, Sees completed a mechanism for easily building a highly secure NFT trading environment.
Born on this secure token foundation is "Continable NFT," a patented technology of Sees that fundamentally transforms the conventional concept of NFTs.
Conventional NFTs were limited to static proof of ownership, fixing data for a specific piece of content or ownership only once.
Therefore, it is structurally impossible to rewrite or update the content of the data after issuance.
If you wanted to update the data, the only option was to issue a completely new NFT, and it was considered impossible to smartly represent changes in content or the continuity of history from past to present while keeping the same identifier.
In contrast, the patented technology "Continable NFT" developed by Sees is a groundbreaking technology that, through advanced integration with smart contracts, can keep securely updating the data and change history contained within it in a tamper-proof form while retaining the unit of a single, identical NFT.
This has made it possible to perfectly prove the latest status and the entire history to date with just one NFT, when tracking complex systems and business processes whose data is updated daily, such as manufacturing histories, maintenance records, or the progress of learning processes.
Sees combines this patented technology "Continable NFT" with "Sees Blockchain" to develop and operate representative decentralized applications (DApps) that companies can flexibly choose according to their diverse business challenges and on-site needs.
Created in October 2026
HISAO ITO, CEO, Sees Co., Ltd.
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