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https://github.com/bptlab/blockchain-deferred-choice

https://github.com/bptlab/blockchain-deferred-choice

Science Score: 13.0%

This score indicates how likely this project is to be science-related based on various indicators:

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    CITATION.cff file
  • ✓
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    Found codemeta.json file
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    .zenodo.json file
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    Scientific vocabulary similarity
    Low similarity (10.2%) to scientific vocabulary
Last synced: 6 months ago · JSON representation

Repository

Basic Info
  • Host: GitHub
  • Owner: bptlab
  • Language: JavaScript
  • Default Branch: master
  • Size: 2.06 MB
Statistics
  • Stars: 0
  • Watchers: 3
  • Forks: 0
  • Open Issues: 0
  • Releases: 0
Created over 5 years ago · Last pushed over 5 years ago
Metadata Files
Readme

README.md

Which Event Happened First? Deferred Choice on Blockchain Using Oracles

This repository is part of a research paper and should be viewed in that context.

Blockchain Deferred Choice

An implementation and evaluation of the deferred choice workflow pattern on Ethereum, using various oracle architectures and designs to implement events contingent on external data variables.

Repository Structure

The repository is structured as follows:

  • results: Results of the simulations as used in the paper
  • scripts: Helper scripts to start geth
  • solidity: Solidity smart contracts
  • src: Off-chain components and Node.js framework
    • /keys: Private keys of all pre-funded accounts in the genesis block
    • /providers: Off-chain oracle provider code
    • /simulation: Simulation logic

Running the Simulations

Installation

To run the simulations, you will need to have the following packages installed:

  • Node.js, tested with version v12.18.3 and npm 6.14.6
  • Go Ethereum (geth), tested with version 1.9.21-stable

Everything else is then installed via npm:

bash npm install

Starting geth

The simulations require certain accounts to be pre-funded. A custom genesis block and a helpful cleanup/startup script are located in the scripts folder:

bash cd scripts ./geth.sh

Simulations

There are two simulations:

  • npm run correctness: Starts the correctness simulation
  • npm run cost: Starts the cost simulation

Both simulations will output information to the console and a CSV file.

Additionally, the CSV output of the cost simulation can be translated to custom LaTeX code for inclusion in a paper using the heatmap script.

Owner

  • Name: Business Process Technology
  • Login: bptlab
  • Kind: organization
  • Location: Potsdam, Germany

Business Process Technology @ Hasso Plattner Institute, University of Potsdam

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Dependencies

package-lock.json npm
  • 344 dependencies
package.json npm
  • fs-extra ^9.0.1
  • glob ^7.1.6
  • json-2-csv ^3.7.5
  • log-timestamp ^0.3.0
  • seedrandom ^3.0.5
  • solc ^0.7.1
  • web3 ^1.2.9