Be opposite as people fake the attention of product problem, to tracing to the source technical demand also rises increasingly. And the occurrence of technology of area piece catenary, to trace to the source the technology that prevent bogus offerred new settlement train of thought. Originally with date from commodity whole technological process traces to the source for the purpose technology, with have cannot distort, but the area of the characteristic such as date from piece catenary technology is characteristic very agree. It is so in the setting of a lot of application of area piece catenary, trace to the source can saying is the easiest understanding and most first one of setting of be born.
Everybody is right trace to the source the technology is not new, the production that trace to the source even if carries pair of goods, treatment, carry, current, retail wait for link track a record, can examine each participator that swims up and down to industrial catenary. In the meantime, trace to the source also all the time consist in in our daily life, the goods that buys in day cat international for instance can undertake commodity trace to the source etc.
The 2 dimension code that place of day cat international uses traces to the source also is we trace to the source one kind the commonnest at ordinary times technology, still have besides with technology of commodity bar code, technology of RFID wireless radio frequency is carrier trace to the source technology. But these technologies are put in a few blemish mostly, for instance 2 dimension code traces to the source of the technology can duplicate the data capacity of technology of bar code of the high cost of technology of wireless radio frequency of gender, RFID, commodity is coarse.
Besides, trace to the source industry itself returns existence to cannot assure to trace to the source the authenticity of the information in the system, center is changed can distort and the enterprise uses cost advanced problem.
1. cannot assure to trace to the source the authenticity of the information in the system
Somebody is examining the possibility trace to the source the information in the system crosses such apprehension from time to tome, "What how I know to be recorded above it is false still really, is if trace to the source,the information on the system false how to do? " trace to the source that is to say the system still assures us without method the information that through tracing to the source systematic place examines is true. And the case that is put in a few enterprises to be able to offer source of professional go against the river subdue Wu surely really, the price is low to 2 wool money, 2 million rise calm.
2. center is changed can distort
Trace to the source traditionally what the technology uses is means of the record that the center spends, memory, can distort at will, and the security of unwarrantable information, trace to the source the information in the system will be missing because of contingency.
3. cost is high
To medium and small businesses, a complete set of of direct butt joint traces to the source the system is not small cost however, the confused current situation as a result of current product code and standard of date from standard, also increased medium and small businesses to build the burden of date from system further.
In the light of trace to the source the pain spot of the industry, technology of area piece catenary was pushed, but area piece catenary also is not solve trace to the source all-pervasive antidote of the problem.
Area piece catenary most the characteristic of core cannot distort namely, will achieve through the technical measure such as jab of distributed charge to an account, time and consensus mechanism cannot distort, the purpose that can trace to the source, the problem that it solves is the tradition traces to the source trade center turns the issue that can distort.
But area piece catenary still assures to go up without method the authenticity of catenary information itself, and because complex degree of the technology is exorbitant,bring about on the question that catenary cost also raises, even itself of technology of area piece catenary still is facing a lot of problem.
If just use the technical character of area piece catenary to assure,trace to the source information is safe, come from demand saying is necessary, and in existing technology, can accomplish this be afraid have area piece catenary only. Although area piece catenary has not been accomplished,solve completely trace to the source the problem that faces, but area piece catenary is in aiding force to trace to the source also is not to chicken ribs in technical development, but it is to trace to the source no matter of the technology perfect, still be the development be born of technology of area piece catenary, need time.
