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Solving the NPoS problem with Phragmen | Substrate Seminar | Archives
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Today we're joined by Kian Paimani to discuss Substrate's use of Phragmen's algorithm and it various on- and off-chain implementations.
0:00 Introductions
1:59 Overview - Three varieties of Phragmen
3:04 Sequential Phragmen
10:55 The NPos Problem
15:28 Question: How did we choose the criteria for a "good" NPoS solution
Criticism: The criteria incentivizes validators splitting stake
24:10 Example: Comparing two NPoS solutions
27:23 Question: When is Phragmen run?
30:30 Offline Phragmen
34:55 Offchain Phragmen
41:57 Encoding NPoS Solutions
1:01:37 Validating and Scoring Solutions
1:26:29 Wrap-up
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→ For more videos on blockchain development and building Web 3.0,
→ To stay informed about Parity updates and events,
0:00 Introductions
1:59 Overview - Three varieties of Phragmen
3:04 Sequential Phragmen
10:55 The NPos Problem
15:28 Question: How did we choose the criteria for a "good" NPoS solution
Criticism: The criteria incentivizes validators splitting stake
24:10 Example: Comparing two NPoS solutions
27:23 Question: When is Phragmen run?
30:30 Offline Phragmen
34:55 Offchain Phragmen
41:57 Encoding NPoS Solutions
1:01:37 Validating and Scoring Solutions
1:26:29 Wrap-up
⎼⎼⎼⎼⎼⎼⎼
→ For more videos on blockchain development and building Web 3.0,
→ To stay informed about Parity updates and events,
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