Solana Whitepaper Explained | Understanding Proof of History, Validators, Staking, and More!

Let's be honest, when you bought some Solana, did you reaaallly know how the technology works? Luckily for you! In this video I will be going through the Solana whitepaper and docs so you don't have to! We'll be talking about the Solana blockchain architecture and all the different things to consider when making a L1 solution!
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🐦 Twitter: / imjoshchang
📙 Solana Playlist: • Rust Crash Course Tuto...
00:00 - Intro
01:20 - Solana Network Architecture
03:01 - Leader Selection
05:43 - What is Proof of History?
12:23 - Verifying PoH Hashes
15:17 - Reaching block consense (PoS)
17:16 - Handling bad actor in consensus
19:25 - CAP Thorem for Distributed Systems
22.56 - Solana Cap Thorem Architecture
23:47 - How Solana Handles Network Failures
26:50 - Vertical Scaling vs Horizontal Scaling
33:11 - Conclusion and final thoughts
Solana Whitepaper:
solana.com/solana-whitepaper.pdf
Solana doc:
docs.solana.com/cluster/overview

[@johncool8653]

Thanks Josh for the effort to make such a great video to explain Solana POH.

[@zmuhammad-only2889]

Thank you! best explanation I've seen thus far!

[@harshvardhanbanerjer6672]

hey josh....i just started learning about blockchain dev and got really intimidated by Solana . Thank you for making me understand this whitepaper in a concise manner . You deserve a lot more subscribers 👍

[@yongkangchia1993]

great explaination with very useful visuals!

[@haniman4618]

Amazing Video! Thank you!!

[@hrushikevlogzzzzz7765]

Thank you Josh, great video :)

[@0xarunk]

Brilliant summary!

[@user-zv6sf1cs5o]

Awesome Video!! Best Explanation

[@jpmitsch]

awesome video!! Learned a lot

[@yulongcoding9542]

Great job! thank you!

[@zenithlight6132]

23:54 The fact that for a few seconds after sending a transaction the receiver won't see their balance update says nothing about strong consistency. Strong consistency is only talking about committed writes. In the case of a database, that means the write operation will block until all nodes have committed the new state, then it will return a success. In the case of a blockchain, that means that once a block that includes a transaction is finalized, that every validator will have the same view on your friend's balance.

[@Jrej_dev]

Very helpful video. I'll share that with my own community. ;-)

[@0xsuperman]

Very good explanation on solana. One question, when people say solana is more centralized than ethereum, is it referring to the much lesser number of validators compared to on ethereum?

[@dcc__750]

Best explanation I have found on TH-cam about proof of history. Thank you, subbed.

[@Crypto-vb3tx]

great explanation

[@lherfel]

thanks nice overview

[@MayaC-td4jl]

Amazing! One question I have been trying to understand is how does solana determine which tx are dropped when there is network overload?

[@fiscage7908]

Another main concern with vertical scaling and Solana's validator hardware requirements in general (due to PoH) is that only a small % of the world's population can and will run such hardware because of the associated costs, making the network potentially centralized. That being said, more research is warranted to understand this issue better.
Great video by the way!

[@ruiii709]

Do we know how much available validator in solana network now?

[@SMoore-vj7bt]

Regardless of the POH, it is centralized because of PoS (proof-of-stake) is centralized. All fungible resources are power-law distributed in nature. There are no exceptions. Thus stake is always power-law distributed. Thus 50+% of the stake is actually in control and can do whatever it wants with the block chain. I verified the mechanism by which 50+% stake can take control of Ethereum for example. I have done this analysis for many proof-of-stake systems, and there will be no exceptions as it is a fundamental invariant. This applies to Ethereum and every altcoin that is not proof-of-work. Eventually this will manifest itself. For now everyone is making enough money on mining the FOMO. The entire industry is a scam.
SOL(ana) is just more of the usual aping dogsh8t.
More on this at the appropriate time and venue.

[@DatoAbesadze-tv3wj]

Hi, Josh. I wanted to see solana rich list on sol explorer and this info is not there. Can you suggest the way I can get a legit data about sol account holdings?

[@berhanxo]

My question is why don't the verifiers just commit the block directly to the ledger instead of handing this decision back to the leader node?

[@prakyathreddy5790]

Regarding Proof of history, do all the Leader Nodes ever have the exact same hash currently being processed ?

[@branislav3800]

I didn’t get the timeout. If the 200 SOL and the 2 100 SOL keep voting the no one gets removed. So how does that reach consensus

[@Psxbs]

can you give me the tldr?

[@aidin3186]

❤‍🔥❤‍🔥❤‍🔥❤‍🔥

[@Flaneur27]

You are very likeable man kee goimg

[@WilliamBrown-ug1hv]

Sponge V2 is unstoppable, join the revolution! 🚀🔥

[@vincenzoniglio8547]

Just take some SOL and earn by locking it. But what can bring Solana in the future ?

[@eduardomedin9563]

Gacias amibo chinito por ayuda a Dodito att dodita

[@offgridvince]

1st

[@offgridvince]

Thanks again! I still love Solana.

[@J-a-c-k-0]

check out the power of ICP. dont let fud make u sleep on the best tech in the world

[@scottlim5597]

we're all clueless and just got liquidated

[@JoshsDevBox]

HODL!!!!!

[@pengye5280]

so hard

[@celissebearce1557]

𝔭𝔯𝔬𝔪𝔬𝔰𝔪

[@bademarc2147]

Its cool but solana can die cuz FTX have big problems