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Blockchain LabVENTURE STUDIO

whitepaperConsensus2018

DFINITY Consensus System

Internet Computer. Timo Hanke, Mahnush Movahedi, Dominic Williams.

The DFINITY consensus overview: a randomness beacon, a ranking of block proposers, and notarisation so that a chain can come to agreement quickly among a large set. The Internet Computer is the later network built by the DFINITY foundation on this line of research.

The problem the paper names

Large committees are slow if every round is a full Byzantine agreement from scratch, and they are unsafe if the next leader is known early enough to attack. The overview's answer is a random beacon that ranks potential proposers and a notary that signs the block it sees first among the admissible ones.

What the design proposes

  • A threshold relay produces randomness that subsequent rounds depend on.
  • Notarisation is not the same step as finality. The paper separates them.
  • The goal stated in the series is a blockchain that can host software, not only balances.

How the mechanism is specified

  • Threshold signatures keep the beacon unpredictable to any small coalition.
  • A block that is notarised can still be excluded later if a higher-ranked alternative appears, until the finality rule says otherwise.
  • Canisters, cycles and the later Internet Computer specification are not this 2018 overview.

What this page does not treat as proven

  • The consensus overview is not the Internet Computer interface spec.
  • Threshold cryptography concentrates trust in the ceremony and the key-sharing assumption. That has to be read, not skipped.
  • This page does not evaluate the foundation's governance or token distribution.

Why a venture studio still reads it

Relevant when a venture wants 'the network hosts the app, not just the settlement'. The prior question from this paper is narrower: where does the randomness come from, and is notarisation being sold as finality.

This is Blockchain Lab's reading of a public design paper. It is not the paper, not a copy of it, and not an offer of tokens, equity, custody or a partnership. Later network behaviour can diverge from the text. Nothing here is investment, legal or technical advice.