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Automated Market Making Mechanisms and Issues in Uniswap, Balancer, and Curve

Early decentralized exchange (DEX) proposals took their inspiration from classical exchange markets and made use of order books to match sell and buy orders. A complementary approach to offchain order books for decentralized exchanges uses the concept of automated market makers (AMMs). In this post we look at the basics of the following three AMM projects: Uniswap, Balancer, and Curve.

Censorship of Harmful Data in Blockchains

Public blockchains allow insertion of arbitrary data. Even specific-purpose blockchains like Bitcoin already contain a lot of non-financial data. Although this data insertion can be beneficial in some use cases (e.g. proof of existence), it can also cause damage. If a blockchain contained videos with instructions on how to torture someone, there would immediately be broad consensus that this data must be deleted. But since blockchains are supposed to be immutable databases, the question is: what can be done if this happens?

Immutability: Is There a Limit?

Any information stored in a blockchain is supposed to be preserved forever, nobody will be able to change it or even less erase it. But is this really true? Is there any chance that governments or private groups with enough money to finance costly attacks might delete information from a blockchain?

Some Insights into Cardano ´s Blockchain

In this blog post, we present a high-level overview of the paper describing the Ouroboros Proof of Stake protocol implemented in Cardano´s blockchain. After the overview follow some comments about theoretical aspects of the protocol.
In general, Proof of Stake (PoS) consensus protocols elect the network nodes responsible to send the next block to the blockchain on the basis of the nodes’ amount of stake.

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