BlockShots: Blockchain Simplified

In the last episode, we touched on how rollups work. In this episode, we go a step further. Let’s understand what are Fraud and Validity proofs and how they are used in rollups.

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In the episode 46 of Block Shots, we did a brief introduction of blockchain rollups. In this episode, we go a bit deeper into how rollups work and what components are involved in the block production and verification of rollup blocks.

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You must have heard about the term Metaverse quite a bit in the last few months, ever since NFTs became famous. In this episode, let’s try to explore the most basic understanding of Metaverse and how does blockchain come into the picture.

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You must have heard this phrase quite a few times — Not your keys, not your crypto. Let’s find out, in this episode, what it actually means and how it effects you and your crypto currency holdings.

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Smart contracts are simply code stored and executed on a blockchain. But how do they work? What happens when a user sends a transaction to deploy or execute a smart contract? Let’s find out in this episode.

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Most of us are fans of computer or online gaming. In this episode, we discuss how blockchains make gaming more fun and fulfilling. They also allow different revenue streams though novel economic models in the world of gaming. Let’s explore.

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In this episode, the topic is Soul Bound Tokens. In the most basic sense, they are just non transferable NFTs. However, SBTs open up quite a few interesting use-case cases for blockchains. Listen to the episode to learn more about what are Soul Bound Tokens and how they could be used in several blockchain applications.

Vitalik’s blog post about SBTs - https://vitalik.ca/general/2022/01/26/soulbound.html

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In this episode, we cover Directed Acyclic Graph or DAG.

In blockchain, we have blocks as collection of transactions and the current block references the previous one, and a chain is formed.

In DAG, we don’t have any blocks. Transactions directly reference previous transactions. The nodes verify the previous transactions by referencing them in new transactions.

When a new transaction is submitted to a DAG, some previous transactions are referenced in it. 

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In this episode, we cover Inter-planetary File System (IPFS) and decentralized file storage protocols in general. We also take a slightly deeper look into how IPFS works.

* NFT storage. Metadata storage of on-chain assets.

* Distributed, cannot be controlled by single organization.

* Censorship resistant.

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In this episode, we cover Verifiable credentials. These are a standard to represent digital credentials that could be issued for an identity by an identity, and could be verified cryptographically.

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