Talks

Image for Bitcoin Core PR Review Club: #20827

December 29, 2021 at #bitcoin-core-pr-reviews IRC channel

Bitcoin Core PR Review Club: #20827

I’ve prepared and moderated a Bitcoin Core PR review club meeting on luke-jr’s PR #20827: During IBD, prune as much as possible until we get close to where we will eventually keep blocks. This is an potential IBD speed-up for pruned nodes.

Image for Bitcoin Core PR Review Club: #23724

December 15, 2021 at #bitcoin-core-pr-reviews IRC channel

Bitcoin Core PR Review Club: #23724

I’ve prepared and moderated a Bitcoin Core PR review club meeting on my PR #23724: add systemtap’s sys/sdt.h as depends for GUIX builds with USDT tracepoints. My goal was to get feedback and eventually reach consensus on having the tracepoints for Userspace, Statically Defined Tracing in GUIX, and release builds.

Image for Updates on USDT in Bitcoin Core

October 14, 2021 at Bitcoin CoreDev Zurich

Updates on USDT in Bitcoin Core

I updated about my recent work on Userspace, Statically Defined Tracing (USDT) support for Bitcoin Core, and showed examples. We discussed where debug logging and where USDT makes more sense and security and performance of USDT. We briefly touched on adding automated testing for the tracepoints. A few additional tracepoint ideas were proposed by different developers.

Blog post: Userspace, Statically Defined Tracing support for Bitcoin Core on my blog.

Image for Update on Reorgs on SigNet

October 13, 2021 at Bitcoin CoreDev Zurich

Update on Reorgs on SigNet

I updated about my recent work on reorgs on SigNet and showed a work-in-progress block tree visualization. Approach and reorg parameters were discussed.

Discussion: Reorgs on SigNet - Looking for feedback on approach and parameters on the bitcoin-dev mailing list.

Image for Bitcoin Core PR Review Club: #22006

May 26, 2021 at #bitcoin-core-pr-reviews IRC channel

Bitcoin Core PR Review Club: #22006

I’ve prepared and moderated a Bitcoin Core PR review club meeting on my PR #22006 Tracing: first tracepoints and documentation on User-Space, Statically Defined Tracing (USDT). My goal was to familiarize Bitcoin Core contributors with the concept of Userspace, Statically Defined Tracing, and to get review on the first tracepoints, examples, and documentation.

Image for Regulatory conform mining on einundzwanzig Podcast (German)

May 14, 2021

Regulatory conform mining on einundzwanzig Podcast (German)

Dennis Reimann and I chat about regulatory conform mining in the context of my miningpool.observer project.

Podcast (German)

Image for BIP42 on einundzwanzig Podcast (German)

April 1, 2020 at home due to COVID-19

BIP42 on einundzwanzig Podcast (German)

Dennis Reimann and I chat about BIP42. We talk about the background of BIP42, Satoshi’s implementation of the subsidy function, the bug in the implementation and the fix which enables a finite monetary supply for Bitcoin.

Podcast (German)

Image for Interview on einundzwanzig Podcast (German)

March 20, 2020 at home due to COVID-19

Interview on einundzwanzig Podcast (German)

Dennis Reimann and I talk about my projects, the Chaincode Labs Residency, and more on the German einundzwanzig Podcast.

Podcast (German)

Image for How Bitcoin Core works: LoadMempool() and DumpMempool()

June 21, 2019 at Chaincode Labs (NYC)

How Bitcoin Core works: LoadMempool() and DumpMempool()

I’ve talked about the LoadMempool() and DumpMempool() functions of Bitcoin Core at the 2019 Chaincode Labs Summer Residency seminar. These functions are used to write and read the mempool.dat file.

Slides (Google Slides) Slides (PDF)

Image for BIP-42: A finite monetary supply for Bitcoin

June 20, 2019 at Chaincode Labs (NYC)

BIP-42: A finite monetary supply for Bitcoin

I’ve talked about BIP-42 at the 2019 Chaincode Labs Summer Residency seminar. With BIP-42 a fix for a bug in the block subsidy calculation of Bitcoin Core is described. This BIP is meant as an april-fools joke and will only become relevant in 2262.

Slides (Google Slides) Slides (PDF)

Image for BIP-125: Opt-in Full Replace-by-Fee Signaling

June 14, 2019 at Chaincode Labs (NYC)

BIP-125: Opt-in Full Replace-by-Fee Signaling

I’ve presented about BIP-125 Replace-by-Fee at the 2019 Chaincode Labs Summer Residency seminar. This talk was about the motivation, the history, other proposals and the specification of BIP-125 Replace-by-Fee.

Slides (Google Slides) Slides (PDF)

Image for Building mempool.observer - mempool stats and visualizations

June 14, 2019 at NYC BitDevs

Building mempool.observer - mempool stats and visualizations

I’ve presented my mempool.observer project at the 93rd NYC BitDevs Socratic Seminar. This included past challenges, current todo’s and future ideas as well as a demo of the site.

Slides (PDF)