The blockchain is similar to a glass safe (from indestructible glass), in which each transaction, each transmitted or registered document is visible. But it is impossible to take it from the safe, that is, to remove it. Only the owner can make changes (rather, create a new version of the document). The main properties of this technology: publicity, distribution and mathematical reliability. The Emercoin blockchain is based on Name-Value Storage (NVS) technology, distributed trusted repository of records of any kind in name-value format. The development of this subsystem was inspired by the Namcoin crypto currency. But unlike Namecoin's similar structure, which placed an emphasis on distributed DNS, Emer NVS is a binary data store, up to 20kb in size. Data is associated with a search key up to 512 bytes in length. This key is unique throughout the network EmerCoin. In fact, this is the ideal solution for verifying faithfully recorded information about the property of any goods or services. Each NVS record is unique and belongs to only one owner. He can create a new one instead of the old one or transfer ownership rights. At the same time the old record does not disappear anywhere, but remains visible in the blockade. Thus, the full history of modifications and change of ownership of a record is reflected. Therefore, the use of a decentralized storage in the form of a blocking system will provide full transparency over the actions of producers. Data in the Emercoin block is saved with a pair name-value or name-value.
Name - a label for stored data, up to 512 bytes in length.
Value - the data itself, up to 20kb.20
Kbyte is the amount that is sufficient to accommodate the public keys of most modern cryptographic applications. Just like the usual payment operations in the blockroom, NVS pairs receive confirmation during the generation of the blocks. NVS records can be managed either through the graphical interface of the Emercoin purse, or through emercoin-cli. Blockside Emer accepts NVS pairs without any restrictions in the name or value data format. However, it is better to follow the data standard agreement in the format:
<Service_abbreviation>: <unique_key>
For example, we want to use Emer DNS technology - it's an alternative decentralized system of domain names. Service for creating ultra-reliable networks. Then the data is entered into the name" tab in the format: dns: emercoin.lib (alternative internet zones .lib, .emc, .coin, and .bazar are supported by Emercoin by default)
When registering an entry, you must specify the number of days and choose the type of operation:
NAME_NEW - create a new name;
NAME_UPDATE - update the values, change the owner or renew the registration;
NAME_DELETE - delete the name.
The value tab: the data that is associated with the name. The percentage indicator shows how much of the 20KB maximum space is used. This field can contain any type of data, although conventions must be respected when the name-value pair is used by a particular service. For example,
A = 192.168.0.123 | TXT = website example
Import: this button allows you to select any file (no more than 20kb) that will be inserted in the value field.
New address: this field contains the EMC address to which the name should be transferred. Applies only to operation NAME_UPDATE.
Submit: This button confirms the operation and sends the data to the Emercoin block chain.
Names in your wallet: this table displays a list of your names. Sometimes fields are highlighted in yellow - this means that the name is waiting for registration. Red fields indicate obsolete names.
Filters
Owned by me - displays only the names that belong to the wallet. Owned by others - displays the names passed to others. Expired - Displays the expired names that previously belonged to the purse.
Names in your wallet: this table displays a list of your names. Sometimes fields are highlighted in yellow - this means that the name is waiting for registration. Red fields indicate obsolete names.
Filters
Owned by me - displays only the names that belong to the wallet. Owned by others - displays the names passed to others. Expired - Displays the expired names that previously belonged to the purse.
As already mentioned above, each pair of NVS has an owner that is associated with the payment address of Emercoin. When a new pair is created, a new payment address for the pair appears in the local wallet. Thanks to NVS, the block system has become a reliable data store, protected from unauthorized changes and a convenient platform for creating various applications. On the EMC unit, you can create your own applications or use ready-made technologies.A short list of the main services of Emercoin:
EmerSSH is a technology that allows solving network security problems. It is used for the deployment and management of a world-wide public key infrastructure.
EmerDNS is an alternative decentralized system of domain names. Service for creating ultra-reliable networks.
EmerLNX is a decentralized advertising CPC network.EmerSSL - a system of passwordless authentication on the Internet (connect your site and users to it for free at Authorizer.io!)
InfoCard - technology based on the blockbuster Emercoin, which allows you to automatically fill in user profiles. Used in conjunction with Emer SSL.
EmerTTS - a system for storing temporary stamps on the basis of the blockbuster Emercoin. The service allows you to record in the locker the time of posting any documents (use for free, register any of your files on https://letsnotar.me/
Magnet is a distributed network for storing Magnet links.
EmerDPO - a system of indisputable proof of ownership of something (working prototype of the system based on this technology - emerdpo.info!).
ENUMER is a direct connection service for IP telephony. Emer WEB - WEB-interface for the emercoin kernel (put it in a couple of clicks on your server under almost any LINUX,)
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