BitcoinTalk 3 messages
Version 0.3.2.5 -- please test!
Context post by jgarzik in BitcoinTalk topic 556. after msg5443.
Jeff Garzik (1974–)
Linux kernel developer and early Bitcoin contributor
Jeff Garzik is a software engineer who studied computer science at Georgia Institute of Technology and worked at Red Hat, where he was a significant contributor to the Linux kernel. He discovered Bitcoin in July 2010 and became one of the most prolific early contributors to the project.
Discovery of Bitcoin
Garzik discovered Bitcoin in July 2010 through a post on Slashdot, the popular technology news aggregation site. He quickly began studying the codebase and contributing patches. His Linux kernel development experience gave him a strong foundation for working on Bitcoin’s C++ codebase.
Bitcoin Core Contributions
Garzik became one of the top three most prolific contributors to Bitcoin Core by commit count, alongside Satoshi Nakamoto and Gavin Andresen. He was one of the earliest developers to receive commit access to the Bitcoin repository. His contributions spanned networking, mining, and protocol improvements.
cpuminer
Garzik created cpuminer, a widely-used open-source CPU mining software for Bitcoin. The tool was one of the first standalone mining applications, enabling users to mine without running the full Bitcoin client.
Interaction with Satoshi
Garzik interacted with Satoshi Nakamoto on the BitcoinTalk forum and through code contributions during the period when Satoshi was still active. He submitted patches directly to the project and received feedback from Satoshi on protocol design decisions.
Bitcoin Improvement Proposals
Garzik authored multiple Bitcoin Improvement Proposals (BIPs), including BIP 100, which proposed a dynamic block size limit determined by miner voting. His scaling proposals were part of the broader debate about Bitcoin’s transaction capacity that became a central issue in the Bitcoin community.
Later Career
In 2015, Garzik co-founded Bloq, a blockchain technology company providing enterprise solutions. He continued to be active in the cryptocurrency industry, advocating for pragmatic approaches to Bitcoin’s technical evolution.
Related Entries
55 entries
BitcoinTalk 5 messages
bitcoind without wxWidgets
Context post by jgarzik in BitcoinTalk topic 576. after msg5904.
BitcoinTalk 12 messages
[PATCH] implement 'xlisttransactions'
Thread starter by jgarzik in BitcoinTalk topic 611.
BitcoinTalk 46 messages
*** ALERT *** Upgrade to 0.3.6 ASAP!
Context post by jgarzik in BitcoinTalk topic 626. quotes Satoshi.
BitcoinTalk 8 messages
Implementation bug prior to 0.3.6
Context post by jgarzik in BitcoinTalk topic 628. before msg6508.
BitcoinTalk 11 messages
Linux distribution download
Quoted post by jgarzik in BitcoinTalk topic 612.
BitcoinTalk 7 messages
Protocol Buffers for Bitcoin
Context post by jgarzik in BitcoinTalk topic 632. before msg7090.
BitcoinTalk 8 messages
Fedora 13 libcrypto
Context post by jgarzik in BitcoinTalk topic 296. after msg3495.
BitcoinTalk 45 messages
4 hashes parallel on SSE2 CPUs for 0.3.6
Context post by jgarzik in BitcoinTalk topic 648. after msg7084.
BitcoinTalk 10 messages
Authentication, JSON RPC and Python
Quoted post by jgarzik in BitcoinTalk topic 689.
BitcoinTalk 15 messages
Bitcoind x86 binary for CentOS
Context post by jgarzik in BitcoinTalk topic 685. before msg7331.
BitcoinTalk 9 messages
Bitcoin Watchdog Service
Quoted post by jgarzik in BitcoinTalk topic 691.
BitcoinTalk 14 messages
A proposal for a semi-automated Escrow mechanism
Context post by jgarzik in BitcoinTalk topic 645. quoted by msg8137.
BitcoinTalk 21 messages
Bitcoin minting is thermodynamically perverse
Context post by jgarzik in BitcoinTalk topic 721. before msg8114.
BitcoinTalk 12 messages
Escrow
Context post by jgarzik in BitcoinTalk topic 750. after msg8140.
BitcoinTalk 8 messages
What could be the transition plan to Y2038 compliant Bitcoin? (it already is)
Context post by jgarzik in BitcoinTalk topic 760. before msg8413.
BitcoinTalk 14 messages
Version 0.3.8.1 update for Linux 64-bit
Context post by jgarzik in BitcoinTalk topic 765. before msg8422.
BitcoinTalk 8 messages
Running on a port other than 8333
Context post by jgarzik in BitcoinTalk topic 589. before msg12483.
BitcoinTalk 2 messages
Compile error in SVN r127
Context post by jgarzik in BitcoinTalk topic 784. before msg8651.
BitcoinTalk 5 messages
Bugfixes in SVN rev 130
Context post by jgarzik in BitcoinTalk topic 795. before msg8960.
BitcoinTalk 8 messages
Proposed change to sendtoaddress API call
Context post by jgarzik in BitcoinTalk topic 807. before msg9134.
bitcoinarchive
The day 184 billion BTC was minted — the centralization paradox, soft-fork rescue, and a 5-hour response
Structural reading of the 2010-08-15 overflow incident — soft-fork rescue mechanics, why a 5-hour response was only achievable then, transaction-shape forensics, and the centralization paradox.
BitcoinTalk 7 messages
Version 0.3.9 rc1, please test
Context post by jgarzik in BitcoinTalk topic 806. quoted by msg9475.
BitcoinTalk
Value overflow incident — 184 billion BTC created in Block 74638
An integer overflow bug (CVE-2010-5139) was exploited to create 184 billion BTC in Block 74638. Satoshi published a fix within 5 hours; the corrected chain overtook the invalid one within 15 hours.
BitcoinTalk 3 messages
Strange block 74638
Jeff Garzik posts the first public alert of the value-overflow incident, sharing the raw block data for #74638 with two outputs of 92,233,720,368.54277039 BTC each.
BitcoinTalk 55 messages
overflow bug SERIOUS
Context post by jgarzik in BitcoinTalk topic 823. before msg9531.
BitcoinTalk 49 messages
tcatm's 4-way SSE2 for Linux 32/64-bit is in 0.3.10
Context post by jgarzik in BitcoinTalk topic 820. before msg9655.
BitcoinTalk 5 messages
RFC: remove DB_PRIVATE flag
Jeff Garzik starts a discussion: RFC: remove DB_PRIVATE flag.
BitcoinTalk 7 messages
New web service: obtain dump of bitcoin block NNNN
Context post by jgarzik in BitcoinTalk topic 928. before msg11400.
BitcoinTalk 14 messages
auto backing up of wallet.dat
Context post by jgarzik in BitcoinTalk topic 921. before msg11345.
BitcoinTalk 14 messages
Version 0.3.11 with upgrade alerts
Context post by jgarzik in BitcoinTalk topic 941. after msg11439.
BitcoinTalk 11 messages
Always pay transaction fee?
Jeff Garzik starts a discussion: Always pay transaction fee?.
BitcoinTalk 6 messages
Version 0.3.12
Context post by jgarzik in BitcoinTalk topic 999. after msg12181, quotes Satoshi.
BitcoinTalk 8 messages
Auto-detect for 128-bit 4-way SSE2
Context post by jgarzik in BitcoinTalk topic 1007. after msg12262.
BitcoinTalk 9 messages
Prioritized transactions, and tx fees
Jeff Garzik starts a discussion: Prioritized transactions, and tx fees.
BitcoinTalk 11 messages
[PATCH] increase block size limit
Jeff Garzik starts a discussion: [PATCH] increase block size limit.
BitcoinTalk 5 messages
Tor connections not working reliably, many seednodes offline
Context post by jgarzik in BitcoinTalk topic 1375. before msg15682.
BitcoinTalk 4 messages
Version 0.3.14
Context post by jgarzik in BitcoinTalk topic 1528. after msg17924.
BitcoinTalk 12 messages
Multiple Wallets, one computer (multiple accounts)
Context post by jgarzik in BitcoinTalk topic 665. after msg18508.
BitcoinTalk 11 messages
Transaction / spam flood attack currently under way
Jeff Garzik starts a discussion: Transaction / spam flood attack currently under way.
BitcoinTalk 16 messages
New getwork
Context post by jgarzik in BitcoinTalk topic 1901. after msg23891.
BitcoinTalk 30 messages
RFC: ship block chain 1-74000 with release tarballs?
Jeff Garzik starts a discussion: RFC: ship block chain 1-74000 with release tarballs?.
BitcoinTalk 8 messages
New demonstration CPU miner available
Thread starter by jgarzik in BitcoinTalk topic 1925.
BitcoinTalk 16 messages
WikiLeaks and the End of the Beginning
Quoted post by jgarzik in BitcoinTalk topic 1735.
BitcoinTalk 19 messages
JSON-RPC method idea: list transactions newer than a given txid
Context post by jgarzik in BitcoinTalk topic 2151. before msg28228.
BitcoinTalk 19 messages
Version 0.3.18
Context post by jgarzik in BitcoinTalk topic 2162. after msg28549, quotes Satoshi.
BitcoinTalk 8 messages
Fees in BitDNS confusion
Jeff Garzik suggests users increase transaction fees if confirmations are slow, and notes that specialized software for non-currency transactions would provide user-friendly fee interfaces.
BitcoinTalk 39 messages
BitDNS and Generalizing Bitcoin
Context post by jgarzik in BitcoinTalk topic 1790. after msg28696, quotes Satoshi.
GitHub 8 messages
Log timestamp
PR #91 thread starter by jgarzik in bitcoin/bitcoin.
GitHub
Bitcoin moves to GitHub — Early committer access grants (2010–2011)
Bitcoin's migration from SourceForge SVN to GitHub, and the chronological record of developers who received commit access to the GitHub repository in 2011.
Wired
"The Rise and Fall of Bitcoin" — Wired's landmark feature on Bitcoin's first boom and bust
Benjamin Wallace's Wired feature — an early major mainstream article on Bitcoin. Traces the whitepaper, mining boom, Mt. Gox hack, and growing pains, ending with Garzik's "We really don't care."
GitHub 8 messages
BDB: restore DB_PRIVATE flag to environment
PR #1367 thread starter by jgarzik in bitcoin/bitcoin.
GitHub 7 messages
Remove fClient
Comment by jgarzik in bitcoin/bitcoin PR #2161. context for Satoshi mention.
Breaker Magazine
Jeff Garzik: 'Bitcoin's Wild Decade' — early developer retrospective
Jeff Garzik, one of Bitcoin's earliest core developers, reflects on his work with Satoshi. He discovered Bitcoin via a July 2010 Slashdot post and became one of the top three contributors.
Bitcoin Magazine
Jeff Garzik on Satoshi Nakamoto: 'A Beautiful Mind type lone genius'
Early Bitcoin developer Jeff Garzik released videos detailing his time working with Satoshi, describing the creator as a self-taught, solitary genius who never revealed any personal information.