Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
When Trust Saves Energy - A Reference Framework for Proof-of-Trust (PoT) Blockchains
KTH, School of Electrical Engineering and Computer Science (EECS), Software and Computer systems, SCS.
KTH, School of Electrical Engineering and Computer Science (EECS), Software and Computer systems, SCS.ORCID iD: 0000-0003-4516-7317
2018 (English)In: WWW '18 Companion Proceedings of the The Web Conference 2018, ACM Digital Library, 2018, p. 1165-1169Conference paper, Published paper (Refereed)
Abstract [en]

Blockchains are attracting the attention of many technical, financial, and industrial parties, as a promising infrastructure for achieving secure peer-to-peer (P2P) transactional systems. At the heart of blockchains is proof-of-work (PoW), a trustless leader election mechanism based on demonstration of computational power. PoW provides blockchain security in trusless P2P environments, but comes at the expense of wasting huge amounts of energy. In this research work, we question this energy expenditure of PoW under blockchain use cases where some form of trust exists between the peers. We propose a Proof-of-Trust (PoT) blockchain where peer trust is valuated in the network based on a trust graph that emerges in a decentralized fashion and that is encoded in and managed by the blockchain itself. This trust is then used as a waiver for the difficulty of PoW; that is, the more trust you prove in the network, the less work you do.

Place, publisher, year, edition, pages
ACM Digital Library, 2018. p. 1165-1169
Keywords [en]
Blockchain, Proof-of-Work, Proof-of-Trust, Trust Graph
National Category
Computer Systems
Identifiers
URN: urn:nbn:se:kth:diva-229925DOI: 10.1145/3184558.3191553ISBN: 978-1-4503-5640-4 (print)OAI: oai:DiVA.org:kth-229925DiVA, id: diva2:1215405
Conference
The Web Conference 2018
Note

QC 20180611

Available from: 2018-06-08 Created: 2018-06-08 Last updated: 2019-04-04Bibliographically approved

Open Access in DiVA

fulltext(1045 kB)136 downloads
File information
File name FULLTEXT01.pdfFile size 1045 kBChecksum SHA-512
e4ad0793c86dea97f2d3345a1b3c1f69d44e16f14767b6202e3a68f4b3866690c227bbca35cedbbd16bcb3645caf3a0ff5cb01559e6f8bd295fa60b4a18ef379
Type fulltextMimetype application/pdf

Other links

Publisher's full texthttps://dl.acm.org/citation.cfm?doid=3184558.3191553

Authority records BETA

Girdzijauskas, Sarunas

Search in DiVA

By author/editor
Bahri, LeilaGirdzijauskas, Sarunas
By organisation
Software and Computer systems, SCS
Computer Systems

Search outside of DiVA

GoogleGoogle Scholar
Total: 136 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
isbn
urn-nbn

Altmetric score

doi
isbn
urn-nbn
Total: 752 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf