# Immutable Log Storage as a Service

arXiv: https://arxiv.org/abs/1908.10944 · HTML: https://mlsanity.com/paper/1908.10944/

## Key facts

- Cited by 1 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 28 Aug 2019.

## Built on by (most cited first, 1 of 1)

- [Cognitive Ledger Project: Towards Building Personal Digital Twins Through Cognitive Blockchain](https://mlsanity.com/paper/2201.08163/) (2022)

## Abstract (arXiv)

Logs contain critical information about the quality of the rendered services on the Cloud and can be used as digital evidence. Hence, we argue that the critical nature of logs calls for immutability and verification mechanism without the presence of a single trusted party. In this paper, we propose a blockchain-based log system, called Logchain, which can be integrated with existing private and public blockchains. To validate the mechanism, we create Logchain as a Service (LCaaS) by integrating it with Ethereum public blockchain network. We show that the solution is scalable (being able to process 100 log files per second) and fast (being able to "seal" a log file in 23 seconds, on average).