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Alex Grintsvayg 2019-10-30 10:33:34 -04:00
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content/bio/rob-smith.md Normal file
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---
name: Rob Smith
role: VP of Growth
email: rob@lbry.com
twitter: robdoes
github: robvsmith
---
Rob focuses on ensuring users get a top notch experience with LBRY, from the earliest brand engagement to running the app and follow up communications.
He believes in wielding design, technology, and art to deliver joyful experiences that connect people with the things they care most about. Rob's background is in game design, game publishing, software business development, and project management.
Rob has a Bachelors of Science from The Art Institute of California - San Francisco, and a Master of Business Administration from California State University, Stanislaus.

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content/news/223-hf1910.md
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@ -4,6 +4,10 @@ title: 'HF1910: A Blockchain Hard Fork on October 30th, 2019'
date: '2019-10-03 10:00:00'
category: technical
---
**Update 2019-10-30 10:24am EST**: The fork is live. Block 658309 occurred on October 30 at 9:53am ET. The prefork chain halted at that block, while the postfork chain is proceeding normally (at block 658325 at the time of writing).
### What's Changing
The LBRY blockchain will experience a hard fork (named HF1910) on October 30th, 2019, to enable the ability to prove the existence of non-winning claims (via Merkle tree proofs).
@ -12,7 +16,7 @@ Staked claims compete against others of the same name. The intention was that t
To address this limitation, after HF1910 lbrycrd will percolate all claim IDs into the trie root hash. Simultaneously, the mechanism for computing the hash of the claims and node children in the trie will change to use an actual Merkle tree (rather than string append) for the hash computation. This significantly reduces the output of the proof RPC methods and allows us to take advantage of newer SIMD instructions for the hash computations.
HF1910 will activate on the mainnet at height 658300, with a second phase on block 658310, which both should take place on October 30th, 2019. The testnet activation will happen today at block 1198550. Regtest activates HF1910 at height 350.
HF1910 will activate on the mainnet at height 658300, with a second phase on block 658309, which both should take place on October 30th, 2019. The testnet activation will happen today at block 1198550. Regtest activates HF1910 at height 350.
A third and unrelated hard-fork phase for enabling Segwit will take place on December 11, 2019, at block 680770. We expect that it will take some time before the LBRY SDK and other LBRY tools support Segwit transactions.