Hedera Hashgraph

Hedera Hashgraph

Swirlds is a distributed ledger platform for distributed applications. Swirlds uses a unique consensus algorithm called hashgraph, developed by Leemon Baird.

All edits by  Alex Dean 

Edits on 9 Apr, 2018
Alex Dean"Adding in patents section, citations"
Alex Dean edited on 9 Apr, 2018
Edits made to:
Article (+1/-1 videos) (+518/-130 characters)
Further reading (+2 rows) (+6 cells) (+411 characters)
Article

Introduction

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In the hashgraph data structure each communication between users creates an event (vertex) represents a gossip synch where for example Bob communicates to Alice all the events he is aware of (red). This event is signed by Alice, includes information about previous gossips from Bob as well a payload of transactions. Time flows up in the hashgraph shown here.

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Design

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History

Fundraising

Swirlds announced a three million dollar seed round led by New Enterprise Associates.

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Characteristics

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Fundraising

Swirlds announced a three million dollar seed round led by New Enterprise Associates.

Patents

In contrast to other to most open distributed ledger projects, Hashgraph will not be open-source code but rather a patented codebase. Co-founder Mance Harmon spoke on this as a positive, enabling Hashgraph to guarantee a platform that will not fork. This decision is controversial in the cryptocurrency and blockchain field as many consider the ability for open-source projects to fork based on their views.

Further reading

Author
Title
Link

Marc Hochstein

No-Fork Guarantee? New Cryptocurrency Touts Resistance to Code Splits - CoinDesk

Samantha Stein

Hashgraph wants to give you the benefits of blockchain without the limitations

Edits on 19 Mar, 2018
Alex Dean"Updating title and thumbnail with the rebranding"
Alex Dean edited on 19 Mar, 2018
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Hashgraph (Swirlds) Hedera Hashgraph

Swirlds is a distributed ledger platform for distributed applications. Swirlds uses a unique consensus algorithm called hashgraph, developed by Leemon Baird.

Edits on 19 Jan, 2018
Alex Dean"updated title"
Alex Dean edited on 19 Jan, 2018
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Related Topics (+3 topics)
Topic thumbnail

Swirlds Hashgraph (Swirlds)

Swirlds is a distributed ledger platform for distributed applications. Swirlds uses a unique consensus algorithm called hashgraph, developed by Leemon Baird.

Categories
Related Topics
Edits on 11 Oct, 2017
Alex Dean"Added details on gossip communication protocols. Plus one image of the hashgraph."
Alex Dean edited on 11 Oct, 2017
Edits made to:
Article (+1 images) (+945/-333 characters)
Academic papers (+3 rows) (+9 cells) (+333 characters)
Article

Swirlds builds consensus on its distributed network protocol through what is called "gossip about gossip" to build a hashgraph, an alternative data structure to blockchain. Nodes in the Swirlds platform communicate to each other, i.e. gossip, about both transactions that have occurred as well as a graph reflecting all of these gossip communication events that they are aware.

...

Time ordering and consensus is enforced in Swirlds through virtual voting based on the previous state of the hashgraph network.

In the hashgraph data structure each communication between users creates an event (vertex) represents a gossip synch where for example Bob communicates to Alice all the events he is aware of (red). This event is signed by Alice, includes information about previous gossips from Bob as well a payload of transactions. Time flows up in the hashgraph shown here.

Time ordering and consensus is created in Swirlds through virtual voting based on the previous state of the hashgraph network and information about how individuals would have voted based on the gossip they know about. The Swirlds whitepaper provides a variety of proofs on the consensus properties of the hashgraph data structure and virtual voting mechanisms. Apps built on the Swirlds platform define the voting stake of each member through various mechanisms, Swirlds suggests a variety of approaches including proof of stake, proof of work, proof of burn, or hybrid approaches.

Academic papers

Author
Title
Link

Leemon Baird

Overview of Swirlds Hashgraph

http://www.swirlds.com/downloads/Overview-of-Swirlds-Hashgraph.pdf

Leemon Baird

Swirlds and Sybil Attacks

http://www.swirlds.com/downloads/Swirlds-and-Sybil-Attacks.pdf

Mance Harmon

Dictatorships, Democracy, and Blockchain

http://www.swirlds.com/downloads/Dictatorships-Democracy-and-Blockchain.pdf

Edits on 10 Oct, 2017
Alex Dean
Alex Dean edited on 10 Oct, 2017
Edits made to:
Academic papers (+117/-118 characters)
Academic papers

Author
Title
Link

Leemon Baird

http://www.leemon.com/papers/2016b2.pdf

Leemon Baird

http://leemon.com/papers/2016b.pdf

Alex Dean
Alex Dean edited on 10 Oct, 2017
Edits made to:
Article (+385/-115 characters)
Academic papers (+1 rows) (+3 cells) (+126 characters)
Article

Swirlds builds consensus on its distributed network protocol through what is called "gossip about gossip" to build a hashgraph, an alternative data structure to blockchain. Time ordering and consensus is enforcedNodes in the Swirlds throughplatform virtualcommunicate votingto basedeach onother, thei.e. previousgossip, stateabout both transactions that have occurred as well as a graph reflecting all of thethese hashgraphgossip networkcommunication events that they are aware.

...

Time ordering and consensus is enforced in Swirlds through virtual voting based on the previous state of the hashgraph network.

Leemon Baird presented the hashgraph algorithm at Cloud identityIdentity summitSummit in 2016.

Academic papers

Author
Title
Link

Leemon Baird

THE SWIRLDS HASHGRAPH CONSENSUS ALGORITHM: FAIR, FAST, BYZANTINE FAULT TOLERANCE

http://leemon.com/papers/2016b.pdf

Alex Dean
Alex Dean edited on 9 Oct, 2017
Edits made to:
Article (+2 characters)
Article

Swirlds builds consensus on its distributed network protocol through what is called "gossip about gossip". Time ordering and consensus is enforced in Swirlds through virtual voting based on the previous state of the hashgraph network.

Alex Dean
Alex Dean edited on 9 Oct, 2017
Edits made to:
Documentaries, videos and podcasts (+2 cells) (-4 characters)
Documentaries, videos and podcasts

Title
Date
Link

https://www.youtube.com/watch?v=rhHfjOqlUv4

Alex Dean
Alex Dean edited on 9 Oct, 2017
Edits made to:
Article (+106/-106 characters)
Article

Swirlds builds consensus on its distributed network protocol through what is called gossip about gossip.

Swirlds builds consensus on its distributed network protocol through what is called gossip about gossip. Time ordering and consensus is enforced in Swirlds through virtual voting based on the previous state of the hashgraph network.

Alex Dean
Alex Dean edited on 9 Oct, 2017
Edits made to:
Description (+35/-10 characters)
Article (+2 videos) (+443 characters)
Academic papers (+1 rows)
People (+2 rows) (+1 cells) (+12 characters)
Further reading (+1 rows)
Documentaries, videos and podcasts (+1 rows)
Companies (+1 rows)
Topic thumbnail

Hedera Hashgraph

Swirlds is a distributed ledger platform for distributed applications. Swirlds uses a unique consensus algorithm called ahashgraph, hashgraphdeveloped by Leemon Baird.

Article

Introduction

Swirlds builds consensus on its distributed network protocol through what is called gossip about gossip.

Time ordering and consensus is enforced in Swirlds through virtual voting based on the previous state of the hashgraph network.

Leemon Baird presented the hashgraph algorithm at Cloud identity summit in 2016.

History

Fundraising

Swirlds announced a three million dollar seed round led by New Enterprise Associates.

Characteristics

People

Name
Related Golden topics

Leemon Baird

Mance Harmon

Companies

Company
CEO
Location
Services

Swirlds

Mance Harmon

College Station, Texas, USA

Distributed ledger network

Academic papers

Author
Title
Link

Leemon Baird

HASHGRAPH CONSENSUS: DETAILED EXAMPLES

http://www.leemon.com/papers/2016b2.pdf

Further reading

Author
Title
Link

Swirlds

Swirlds Raises $3M Seed Round to Bring Improved Performance, Security to Distributed Ledger Applications

http://www.swirlds.com/swirlds-raises-3m-seed-round/

Documentaries, videos and podcasts

Title
Date
Link

https://www.youtube.com/watch?v=rhHfjOqlUv4

Alex Dean
Alex Dean edited on 9 Oct, 2017
Edits made to:
Description (+134/-45 characters)
Categories (+2 topics)
Related Topics (+4 topics)
Topic thumbnail

Hedera Hashgraph

Edit to enter a brief description of Swirlds.

Swirlds is a distributed ledger platform for distributed applications. Swirlds uses a unique consensus algorithm called a hashgraph.

Categories
Related Topics
Alex Dean"Initial topic creation"
Alex Dean created this topic on 9 Oct, 2017
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 Swirlds

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