My latest proposal for scaling Rootstock and other EVM blockchains: Optimistic State Prefetching (OSP).
Research done in the IOV Labs Research Team.
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Sergio Demian Lerner (sergio.lerner.rsk)
@SDLerner
Cryptocurrency Security Consultant.
Chief Scientist at IOV Labs.
Designer of the Rootstock Bitcoin sidechain
-- All opinions are my own --
Blog: bitslog.com
Sergio Demian Lerner (sergio.lerner.rsk)’s Tweets
The objection "miners can steal" for drivechains (see stacker.news/items/127974) does not apply to my hybrid drivechain proposal (BIP-R11).
It allows sidechain BTC custody to be shared between the miners AND a multisig federation.
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Rootstock peg-outs resumed after bug fixed.
Thanks to the RSK core devs who dedicated so much time to fix it. They analyzed, prepared a fix, proposed it to the community, coded, tested and monitored the activation of the fix.
blog.rsk.co/noticia/incide
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Is world state I/O the bottleneck when scaling EVM blockchains?
Can we build a state database engine to maximize I/O performance?
Do we need ACID properties?
Read the 1st article about our research at IOVLabs on statebases and FlatDB for Rootstock !
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Paper on Rootstock Flyover protocol published!
The Flyover protocol is an overlay protocol on top of the Powpeg that enables fast (1-conf) peg-ins and peg-outs with the same level of security for the user as standard Powpeg transfers.
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#ePrint Flyover: A Repayment Protocol for Fast Bitcoin Transfers over Federated Pegs: JÁ Cid-Fuentes, DA Masini, SD Lerner ia.cr/2023/086
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🔥 Get ready to join 2023’s first Scientific Moment TOMORROW, January 26th at 12 pm (GMT-3)
💻 The Security of Blockchain Bridges
🎙️Speaker
🚀 Host:
Watch the live streaming:
youtube.com/watch?v=FOHweL
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"Bitcoin will be the major asset, Lightning Network its currency, and Rootstocks its DeFi environment."
Post in a Sovryn forum >
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📢 Quick reminder to all #Rootstock community: The hop 4.0.1 upgrade is happening in less than 2000 blocks! This is an important step towards resuming the PowPeg peg-out service.
Full details 👉 : blog.rsk.co/noticia/rsk-ho
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📢 Mañana, el viernes 13, volvemos con un nuevo programa de 🎙El Bloque de la Alianza
👉 sobre:
La (in)Seguridad en los Bridges en Blockchain
Participan 🗣:
🔴 Lo podrás ver en vivo en: youtu.be/Sea-ZMMzzYU
#Blockchain #bitcoin #Educación
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Rootstock uses since 2016 a fee smoothing mechanism that acts mostly like burning, because there is player replaceability in merge-mining. Modifying the fee mechanism to make it a 2nd price auction could be an interesting improvement.
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I watched the excellent video of of her work on transaction fee mechanism.
youtube.com/watch?v=XGf4-R
Although burning all fees is incentive compatible, letting miners manipulate the amount of fees burned as in EIP-1559 is not, see:
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Happy Birthday, Rootstock!
On January 3rd, 2018, #bitcoin sidechain went live on mainnet. Theres now multiple dappa providing real world use cases including and .
rootstock.io
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Awesome!!
Check the code, try to break it and get a bug bounty.
/** Code repo was already open for months **/
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The #Rootstock PowHSM firmware, aka #PowPeg, is now completely open-source!
This significant milestone further aligns the Rootstock ecosystem with #Bitcoin’s values of transparency and decentralization. 
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THE REVOLUTION WILL NOT BE CENTRALIZED 📢
Twitter Space ft:
of
of
of @RSKsmart
Topic:
Everything Bitcoin DeFi
Set a Reminder:
twitter.com/i/spaces/1MYxN
Submit Anonymous Questions:
bit.ly/3hlNM6E
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This is something I also wish to see in 2023. It is an interesting technical challenge and AFAIK 100% feasible!
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Replying to @elsultanbitcoin @jakeeswoodhouse and @moneyonchainES
Tks Sultán!!
DoC running on Taro LN
, minted using the Rootstock 2Waypeg, is top of my bitcoiner wish list for 2023.
Cc @starkness @lucasdcf @SDLerner 
, minted using the Rootstock 2Waypeg, is top of my bitcoiner wish list for 2023.
Cc @starkness @lucasdcf @SDLerner 
GIF
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Cool news! RSK transactions and RSK stablecoins integrated ? I'll test it!
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@TallyCash has integrated #Rootstock! #DeFi for #Bitcoin is now available on the community-owned and operated web3 Tally wallet!
Try it out: tallyho.org
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I wrote the first in a series of articles about merged mining. In this article I start with the basics, but then I'll explain how this method has evolved and improved, why Rootstock uses it and why Bitcoin needs it. @RSKsmart
bitslog.com/2022/11/22/mer
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This could be a great opportunity to learn about crypto and rootstock.
Quote Tweet
@RSKsmart has a brand new Blockchain Developer Course!
Enroll now in the beta --> rsk.thinkific.com/courses/blockc
#Blockchain #Developer #Course
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I had an idea:
A solution to MEV that requires adding a searcher, a proposer, a relayer, a builder, a packer, a bundler, a snark-generator, a state-provider, a forwarder and of course, the PoS validator.
Now, with this many actors this must be decentralized. Right?
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Preliminary page for PowHSMs attestation verification can be found here:
developers.rsk.co/rsk/architectu
Congrats to the contributors of the powpeg firmware/node that made this possible!
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We just published our research paper on #DeFi on #Bitcoin.
Thanks to for supporting us
Thanks to for writing the foreword
Thanks to the community from Stacks, @RSKsmart, , and for all the input.
Read on here:
insightdefi.com/post/research-
read image description
ALT
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Covenant may be better known as "vaults". They are withdraw cancelation buffers
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What do all these terms have in common?
circuit breaker, rate limiter, escape hatch, redundancy, fault tolerance, defense-in-depth, fraud proof, emergency backup system, safe mode, covenant, time lock
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RSK's Powpeg verifies RSK consensus in a HSM.
Likewise, Datachain building secure enclaves to verify cross-chain consensus for the Cosmos IBC bridges with the LPC protocol.
LPC solution is more modular than RSK's, but enclaves are less secure than HSMs.
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- Embedded node subtree size (to download state snapshots in parallel from multiple peers using starting byte offsets in a linearized trie)
- Node versioning for more upgrades
- Storage rent ready (upgrade planned)
RSK leads L1 scalability by using the minimum resources!
(4/4)
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- 10X data compression in EAOs (from 150 bytes down to 15 bytes)
- 10X the number of elements that can be stored in a memory cache.
(3/4)
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Properties:
- Binary trie (shorter membership proofs for faster light clients)
- Embedded value size (EXTCODESIZE is just a lookup)
- Embedded key pre-images without overhead (no need for separate database)
- Single trie to store accounts and contracts
(2/4)
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Did you know that the Rootstock EVM was the first EVM implementation (probably still the only one) that uses a completely redesigned and memory-efficient storage data structure ? The Unitrie.
(1/4)
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Only 21 million. Ever.
We believe in code and math.
We are the Honey Badgers.
#Bitcoin is bullsh1t free,
#Bitcoin NEVER DIES!
#LABITCONF 10 years of passionate defense and promotion of the Bitcoin & Blockchain ecosystem through Latin America.
Join us in our 10th Anniversary!!
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I'm taking a look at the RSK PowHSM attestation page that will soon be available online.
Looks very nice!
Information is detailed and it has links for anyone to check against the Bridge contract.
This increases the transparency, auditability and security of RSK.
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The dumbest bitcoiners are those who say they won't use Rootstock because it is unpopular.
Think for a second what Satoshi would have responded to similar criticism of Bitcoin during the early years.
When did Satoshi cry over "popularity"?
We'll never give up.
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Gracias criptonoticias!
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«La desaparición de Satoshi puso a Bitcoin en manos de su comunidad”: Sergio Lerner criptonoticias.com/entrevistas/de via @CriptoNoticias
@SDLerner #Bitcoin
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My conclusions from extensive analysis performed on early Bitcoin blocks that fall into the Patoshi Pattern.
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Awesome work by Paul Sztorc to make BIP300 as clear as possible.
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I have updated Bip300 to make it easier to read. (Hopefully)
Read the new draft here! github.com/psztorc/bips/b
(On psztorc/bips, while we wait patiently for Luke-Jr to merge in the changes)
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The RSK contract that consumes the highest amount of storage is the SOV StakingProxy. It consumes 230 Mbytes of RSK storage (~3.7M nodes). The next 3 in the top rank are also from .
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Regardless of how censorship-resistant the Rootstock peg is now, in the future the Rootstock community may consent to allow peg-out censorship, if it is on the horns of an existential dilemma. (requires a hard fork).
And the same could happen to Bitcoin miners.
#@¬÷[{„]´‚¿?!
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