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:.
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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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).
mainnet.observer
Shows the percentage distribution of daily transactions across different fee rate bands.
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RT @MartyBent: NGU and people who previously derided us for liking bitcoin suddenly talking nice about it is certainly fun and interesting,….
tftc.io
Don't forget, bitcoin is a distributed network that is constantly under attack.
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RT @edil_medeiros: "a Brazilian University is building out a Bitcoin Monitoring Lab, I heard". I've been leading such an effort at the Uni….
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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.
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?.
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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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.
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.
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.
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.
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.
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.
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.
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:.
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:.
mainnet.observer
Shows the Mining Centralization Index (with proxy pools).
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RT @stephanlivera: DMND: The First Full SV2 Mining Pool with Alejandro de la Torre | SLP649.Fixing the problems of FPPS and centralized blo….
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