b10c
@0xB10C
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Bitcoin developer and observer. @OpenSats grantee. Previously funded by @spiralbtc, @hrf, @bitcoinbrink, and @coinbase. [email protected] (not an e-mail address)
Zurich, CH
Joined June 2011
I've persistent my notes on the May 2023 Bitcoin Core node DoS problems. These are background information for the disclosure from last year. When non-ideal sorting, mass BRC-20 mints, and spy nodes caused a CPU Denial-of-Service on the Bitcoin network: https://t.co/KZvpPo2Ivh
b10c.me
In October 2024, the Bitcoin Core project disclosed a Denial-of-Service due to inv-to-send sets growing too large, which I authored, for Bitcoin Core versions before v25.0. I have a few notes and...
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Updated statistics on compact block reconstructions from @0xB10C's Bitcoin network monitoring: "on 2025-09-17, I switched the nodes to run with a lowered minrelayfee. That’s also visible in both the reconstruction rate getting better and having to request a lot less data from
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Good time to backup (and maybe even mirror) your GitHub repository issues and PRs if they contain discussion worth keeping. Tooling is available here:
b10c.me
This year, the Bitcoin Core project will have its 13th anniversary being hosted on GitHub. 13 years of issues and pull requests with critical design decisions and nuanced discussions hosted with a...
hey @github can you help me understand why my account was suspended without any notice? this is extremely disheartening! 💔 I'm funded by @Vinteum_org to do Bitcoin FOSS on the @StratumV2 project, so my github account is primordial for my livelihood.
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new mainnet-observer chart: Transaction Feerate Distribution contributed by @ozdeadman Shows the percentage distribution of daily transactions across different feerate bands (including a sub 1 sat/vbyte band). https://t.co/BhlGuhwZvb
mainnet.observer
Shows the percentage distribution of daily transactions across different fee rate bands.
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NGU and people who previously derided us for liking bitcoin suddenly talking nice about it is certainly fun and interesting, but it is all for naught if the network isn't sufficiently monitored and defended by those who would like to see bitcoin succeed. https://t.co/u2S3rJkPCV
tftc.io
Don't forget, bitcoin is a distributed network that is constantly under attack.
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"a Brazilian University is building out a Bitcoin Monitoring Lab, I heard". I've been leading such an effort at the Univ. of Brasília, more info soon. Monitoring is one of the most relevant and underrated activities in the Bitcoin ecosystem. I want to contribute to the long
github.com
Contribute to ClubeBitcoinUnB/peer-observer-docker development by creating an account on GitHub.
I've written a bit about a project I've been working on for a while: peer-observer: A tool and infrastructure for monitoring the Bitcoin P2P network for attacks and anomalies https://t.co/doLMGV98Bx
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I've written a bit about a project I've been working on for a while: peer-observer: A tool and infrastructure for monitoring the Bitcoin P2P network for attacks and anomalies https://t.co/doLMGV98Bx
b10c.me
Over the past few years, I’ve been working on monitoring tools for the Bitcoin network. One of these projects is peer-observer: A tool and infrastructure for monitoring the Bitcoin P2P network for...
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I have too many other projects currently, but I think this could be a fun side-project for someone: Can we spot public spy-Electrum servers run by Chainanalysis? https://t.co/knoB0vlGJW
github.com
My primary interest here is finding out how many Electrum servers are Chainalysis honey pots and sybils that collect your data, link your addresses to your IP, and use it to enhance their address-c...
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Love this new merkle branch Sankey on https://t.co/sktYedwWfs great job csjones and @boerst!
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Anyone have the contents of the stale block at height 635366 with hash 0000000000000000000e83ae1e2f069094cc1deab4aede641e028df3c8507b41 ? Gotta catch 'em all!
@evanwinget @sanket1729 I show historical forks on https://t.co/BaXonmUtab and started a dataset here
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This is one of my favorite bitcoin blockchain visuals. The share of low/high r and S values in ECDSA signatures. First high-S is made non-standard and then wallets begin to grind r-values to make smaller signatures. https://t.co/BadlOUsf40
mainnet.observer
Shows the distribution of low and high r and S-values in ECDSA signatures per day.
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With 100% of the hashrate, it would currently take about 800 days to rewrite the complete Bitcoin block chain. https://t.co/rWpwIP08rE
mainnet.observer
Shows the Proof-of-Work equivalent days.
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In sum, there have been about 2^96.5 hash attempts for Bitcoin mining (the cumulative log2(work) is 96.5). It's clearly visible when GPU and ASIC mining started. https://t.co/96GNiFMBq7
mainnet.observer
Shows the cumulative log2(work) done.
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Currently, more than ~500000000000000000000000 (500 zeta or 5×10²³) hash attempts are required on average to mine a block. https://t.co/izyC9WFhGv
mainnet.observer
Shows the work required to mine a block.
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This is the current hashrate distribution among the top 5 pools when taking AntPool & friends into account. https://t.co/YzFJfZg81E
mainnet.observer
Shows the top 5 pool hashrate distribution (including proxy pools).
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More than 42 BTC are now forever lost in provably unspendable OP_RETURN outputs. https://t.co/yBnIa99AD6
mainnet.observer
Shows the provably lost OP_RETURN output values in sat.
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There have been close to 1200000000 (1.2 billion) transactions on Bitcoin. https://t.co/kilgOziLwJ
mainnet.observer
Shows the cumulative number of transactions.
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There are currently about 172M UTXOs. Here is the UTXO set composition by output type: https://t.co/23yrHmSYlR
mainnet.observer
Shows the UTXO set composition over time.
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The "Mining Centralization Index" (with proxy pools) is now updated daily on mainnet-observer: https://t.co/gs5OOGZCK1
mainnet.observer
Shows the Mining Centralization Index (with proxy pools).
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