I want to store data in the blockchain for subsequent verification. How to do it on Ethereum?

Question

bitcoin

I plan to create a service for tracking the dynamics of prices for goods, and I would like to have independent storage and verification without the ability to change the data. That is, I need to record a series of prices for a product at a certain point in time. The volume of data is not very large - somewhere around a few tens of numbers like 10.23456 (with 4-6 digit accuracy or reduced to integers for simplicity) and the code of goods and sellers (6-character id), totaling up to 1 kb of data.
How can this be done on the basis of Etherium? or another blockchain - probably Emercoin is the closest? I’ll clarify that I need a public blockchain that is well-known and active enough so that I don’t end up without data (without a network).

Answer 1

I can tell you how to do it on Emercoin. Actually, everything is simple. Download and install a node (wallet), add some coins to it to pay for services, and create an entry either through the GUI or with a name_new JSON request. Then, daily - do name_update, and add your entries. Accordingly, the history of records (with prices) can be seen with the name_history command.
I recommend making a separate new entry for each year so that in a few years history does not fall out a huge sheet.
Well, if you need something else - contact the developers [email protected]

Answer 2

For the stated task, IMHO, Emercoin is quite enough. Simple and clear.
Although practice is the criterion of truth. Who prevents both here and there from starting to lead at the same time, and independently compare?