IOTA (MIOTA) Network To Be Decentralized: Coordicide Explained by IOTA Foundation

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Thu, 04/02/2020 - 12:50
Vladislav Sopov
The IOTA (MIOTA) distributed ledger platform, designed to fuel IoT devices, will shed its semi-decentralized status. This sophisticated process is called Coordicide.
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Contents

Yesterday, IOTA Foundation published a detailed explanation of what the Coordinator, the centralized synchronization node in the IOTA network, will be replaced with.

Coordinator is on borrowed time

According to the explanation, the Coordinator centralized node is currently used to select valid transactions in the Tangle DAG-based data structure. Therefore, the Coordinator decides which transactions should be included in the next blocks and which should be rejected.

But since the Coordinator is only an interim solution for the decentralized sphere, IOTA Foundation decided to replace it with a scheme operated by consensus' own logic. The new solution is called Coordicide and is based on the resolution of conflicts between transactions proposed by network participants using a voting system. 

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In a nutshell, it will be an exchange of opinions between nodes:

Every node will be able to request/reply to a randomly selected set of nodes what they think about the conflicting transactions. Every time a node requires other random node’s opinion is a round. After a sufficient number of rounds is reached, nodes decide which transaction is valid and the consensus arrives to finality.

Five steps to decentralization 

In order to achieve such a crucial milestone, five engineering steps are proposed. Firstly, every exchange of data will include the sender’s ID and, if nodes maliciously interfere with the consensus they can easily be identified and punished. This self-control option will be accompanied by the Mana reputation management system. Users will receive Mana for fair behavior and lose it if something is wrong with their network activity.

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Also, the Auto-Peering mode will re-consider the process of the nodes connections between one another. To prevent the network from congestion caused by spam, Rate Control will be implemented. This will adjust the amount of work a node must do in order to process transactions considering its throughput and transaction processing volume.

At the last step, the conflicts will be resolved through voting organized by the IOTA-designed Fast Probabilistic Consensus.

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About the author

Blockchain Analyst & Writer with scientific background. 5+ years in IT-analytics, 2+ years in blockchain.

Worked in independent analysis as well as in start-ups (Swap.online, Monoreto, Attic Lab etc.)

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