Building a UTXO chain from scratch | Substrate Seminar

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Parity Tech

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Published on April 22, 2020 12:39:47 PM ● Video Link: https://www.youtube.com/watch?v=XuJmxMMHvDw

Duration: 1:16:57

522 views

10

Nicole Zhu and Joshy Orndorff discuss the architecture of a Bitcoin-like node built with Substrate. The node like Bitcoin in the following ways.

* UTXO-style tokens
* Proof of Work consensus
* Dynamic difficulty adjustment algorithm
* Issuance with "Halvenings"

1:02 UTXO Design
13:36 Solving the front-running problem
18:27 Demo of the UTXO pallet
29:27 Code walkthrough of UTXO pallet
32:50 TransactionValidity API (is awesome!)
40:48 Issuing Rewards in `on_finalize`
47:30 Obtaining the block author through an inherent
55:24 Where are inherents validated? Can they be forged?
1:01:06 Issuance and halvenings
1:07:09 Difficulty Adjustment Algorithm (DAA) code walkthrough
1:14:53 DAA demonstration

UTXO Repository: https://github.com/substrate-developer-hub/utxo-workshop

Tidbits from the chat:
Unsigned transaction by default DO consume weight but do NOT consume any fee (not sure which one is gas).

Please go through the workshop! Also feel free to use these materials and run your own workshop.

It’s meant to be asynchronous, and anyone can do a popup workshop using this repo.

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#rustlang #substrate #blockchaindevelopment #utxo