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This week's episode features Stuart Popejoy, founder of the Kadena, creator of the Pact smart contract language, and engineer/designer of the Chainweb blockchain protocol. We go in-depth on design decisions for Pact, how language simplicity impacts the security and adoption of second generation blockchains, how formal verification can be used to improve certainty in smart contracts, and the over-emphasis of Turing completeness for a very domain-specific language such as smart contracts. We go into the design behind Chainweb, an unboundedly scalable Proof of Work blockchain architecture, which expects to reach a whopping 10,000 tx/sec (864,000,000 tx/day) on its first year of release.

Hashing It Out

Episode 6 · 3 years ago

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Episode 6 · 3 years ago

Hashing It Out #6: Stuart Popejoy

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Episodes (108)

Episode 36 · 2 years ago

Hashing It Out #36: Dan Robinson - HTLCs (And why they suck)

We have the pleasure to present one of the more entertaining speakers at SBC19, Dan Robinson. After two talks on Hash Time Locked Contracts (HTLCs), he drops a massive bomb in with a slide deck entitled, "HTLCs (And why they suck)." Lively and entertaining, we have him step through is thoughts on HTLCs and the alternate solutions to this technique that Interleger implements. Bombastic show chocked full information and analysis!

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Episode 35 · 2 years ago

Hashing It Out #35: Constantinople Postponement - Trail of Bits & ChainSecurity

Back with season 2 of Hashing It Out, and we have a doozy! This Episode features Trail of Bits and ChainSecurity to talk about their amazing last-minute catch of EIP-1283's impact on the Constantinople Ethereum hard fork. We go over how they found it, what recommendations they made, and how the hard fork was postponed to quickly. We also discuss the tooling behind analyzing such a vulnerability, the true impact had it been released, and how the processes around hard fork release candidates could be altered by this detection.

Links: - empire hacking videos - EIP-1283 Analysis - contract upgrade anti-patterns - How contract migration works - Blockchain security contacts - securify - slither - eveem.org

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Episode 34 · 2 years ago

Hashing It Out #34: Storj - Shawn Wilkinson & JT Olio

File storage has long been known as a centralized solution. Storj seeks to change this with their decentralized file storage and retrieval architecture. We'll go over their design, engineering goals, and challenges. We dive deep into how erasure codes can be used to mitigate replication requirements, how trust is managed on their decentralized platform, and how one can be incentivized to donate their storage space and bandwidth to the world through their network.

**Links** https://storj.io/ https://github.com/Storj/

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Episode 33 · 2 years ago

Hashing It Out #33: Loom Network / Plasma Cash - Georgios Konstantopoulos

Plasma is one of the strongest candidates for Layer 2 scaling solutions. Since the Plasma whitepaper was released in August 2017, there's been a multitude of Plasma implementations experimenting with the idea. On this episode we feature Georgios Kosntantoploulos, Lead Researcher at Loom Network, to talk about Plasma, the different variations, and the future of scaling through Layer 2 solutions.

https://github.com/loomnetwork/plasma-paper https://www.gakonst.com/

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Episode 6 · 3 years ago

Hashing It Out #6: Stuart Popejoy

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Episodes (108)