This Week in Blockchain Research Issue #18
|zk Capital||Jul 24, 2019|
Paper of the Week:
Many currently popular cryptocurrencies, such as Bitcoin, Litecoin, Ripple or Stellar, do not natively support the concept of smart contracts. On the contrary, the ones that do, such as Ethereum, are based on a Turing-complete programming language and are highly restricted.
Therefore, this work attempts to design a solution that enhances systems like Bitcoin that have no built-in smart contract support and extends the contract execution capabilities of platforms like Ethereum.
It enables contract developers to write contracts in their favorite programming language.
For evaluation purposes, a security analysis is provided and Bitcontracts are implemented to run on Bitcoin, supporting Python contracts.
Finally, to compare the viability of using Bitcontracts in different cryptocurrencies, a comparison of the cost for storing state changes is also discussed.
Summary: A scalable low-latency solution which can run in parallel to a global consensus mechanism such as blockchain, protecting against double spending in the short-term, while the n nodes reach consensus on transactions with a lag of some hours from the transaction time.
Authors: Zvi Schreiber*,
Affiliations: * Fizz.
Summary: This work aims to lift execution limits and enable safe execution of more complex smart contracts for permissionless blockchain systems like Ethereum, while maintaining smart contracts’ transparency and good liveness.
Affiliations: * ETH.
Summary: A systematic cryptographic study of clock synchronization in the permissionless PoS setting, deviseing a novel protocol based on Ouroboros Genesis.
2. Paper Title: Towards a Multi-Chain Future of Proof-of-Space.
Summary: An innovative multi-chain scheme of proof-of-space based on the SpaceMint, built on a combination of a shared proof and a chain-specific proof of storage, which makes the same storage source contributes simultaneously to multiple blockchains, and the cost for an adversary to launch a newborn attack is enormous.
Summary: Facebook’s claim of the Libra Blockchain as a decentralized network is far from reality.
Authors: John Taskinsoy*,
Affiliations: * UNIMAS.
Summary: This paper examines how investors react to the first publicly available news that a firm is investing in blockchain technology.
3. Paper Title: Who is Liable if a Public Cryptocurrency Protocol Fails?
Summary: This paper discusses the failure risks associated with cryptocurrency protocols and the degree to which protocol developers, network participants, and other stakeholders can be held liable for such failures.
Authors: Peder Østbye*,
Affiliations: * Norges Bank.
“Significant research in the blockchain space is constantly being achieved by academic researchers. Unfortunately, a lot of this research is overlooked due to the massive numbers of papers being generated and the way they are being promoted and published. We’ve put together a categorized list of academic papers that can guide our subscribers and keep them up to date.”
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