Next Generation Blockchain Technology O2O CHAIN
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O2O Chain mainnet provides a total social media platform optimized for DApp social media. Providing an API on top of the mainnet, it supports easy DApp opening.
The CertiK project is based on high validity and credibility.
Total Official Verification (We mathematically prove that each realization meets the specifications).
Deep Spec Technology (Break down technology based on stratum for extended verification).
Mostly automatic, verification through device confirmation is possible.
DDPoS (Dual Delegated Proof of Stake) is an algorithm that Sigma Chain developed by improving the DPoS method, which is a decentralized public network based on block chain using Graphene Toolkit Technology. This algorithm improves transaction speed which is a disadvantage of existing PoW method and strengthens the security aspect of DPoS method. In the O2O chain, the DDPoS algorithm is introduced and applied so that the participants of the O2O market participate in the block generation when creating the block.
Block generation period is recommended to be at least 3 seconds in order to avoid problems such as network delay. The maximum size of blocks and transactions is unlimited and can be set according to the user's needs.
It’s difficult to apply the PoW method in actual service since it can only process 7 – 10,000 transactions per second.
Accordingly, companies applying the existing PoW method are making various efforts to increase the speed, but they cannot go beyond the limits of the original model. This has been improved in the DPoS method used by EOS, which processes about 100,000 transactions per second, but the DDPoS method applied in the O2O chain processes about 300,000 transactions per second, generates a block every three seconds and is also superior in stability. Because of that it is suitable for the O2O service where a large number of transactions occur.
The O2O chain is a model which further improved the security. When 17 representative nodes are selected, eight nodes are picked from the O2O market participating small-enterprise nodes and fixed as a verification target. When four verification nodes are randomly selected the small-enterprise nodes also participate in the verification process. The existing DPoS model can be specified as the target of hacking 21 people, but in the O2O chain the O2O market participants participate in block generation and separate verification nodes are being randomly selected, which makes it even more difficult to hack.
Using the mainnet developed in alliance with Sigma chain, the O2O chain allows smooth transactions handling and natural ecosystem structure, providing Web/App wallet creation and stable service.
Smart Wallet, Smart Contract Etc.
We provide individually customized restaurant information based on the Big Data analysis of user’s restaurant usage, other user’s reviews etc. If the users pay for the food using SODAT, they can receive SODA tokens for writing a review, and if other users relate to their review, they can receive additional SODA tokens.
This service allows users to easily sell/share their own-made recipes, lunch-boxes, side dishes, ingredients etc. through the SODADApp. It connects the buyers and sellers through big data analysis, and the SODA tokens can be used for transaction payments.
This is a community-type service, which matches users having similar food taste and interest so that they can become friends by sharing a meal together. The participants verify their identity through SODA service and can pay using SODA tokens.
The restaurants and user can easily pay the delivery rider commission using SODAT. The food-themed booklets to be issued by the SODA service is also distributed by the delivery riders, and the riders receive SODA tokens in return. The restaurants advertising on the SODA platform can also pay the promotion fee using SODAT.
This service allows ordering food and payment (SODA tokens) through DApp using NFC tagging in offline restaurants, QR code scanning etc.