b10c (@0xB10C) / X

b10c

1,222 posts

b10c

@0xB10C

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

Pinned
b10c
@0xB10C
Mar 23
We just had a rare-ish two block fork/reorg between Foundry and AntPool+ViaBTC. Foundry mined six blocks in a row. bnoc.xyz/t/two-block-re…
387K
b10c
@0xB10C
Nov 21, 2023
My miningpool-observer project recently reported six OFAC-sanctioned transactions as missing from blocks. Four of these transactions were likely filtered by F2Pool. This is the first filtering based on OFAC sanctions I've seen. More in:
b10c.me
Six OFAC-sanctioned transactions missing
My project, miningpool-observer, aims to detect when Bitcoin mining pools are not mining transactions they could have been mining. Over the past few weeks, it detected six missing transactions...
428K
b10c
@0xB10C
Apr 17, 2024
Looking at the merkle branches that mining pools send to miners as part of stratum jobs, it's clear that the BTCcom pool, Binance pool, Poolin, EMCD, Rawpool, and possibly Braiins* have exactly the same template and custom transaction prioritization as AntPool.
475K
b10c
@0xB10C
May 6, 2021
In response to block #682170, mined by MARA Pool, I'm announcing a project I've been working on. I hope this brings transparency into mining pool transaction selection. miningpool.observer This compares block templates generated by my node to the blocks mined by pools.
b10c
@0xB10C
Oct 10, 2019
How is the Bitcoin network being used? I've build a Bitcoin Transaction Monitor to gain deeper insights on the Bitcoin network usage. Transactions are plotted by time and feerate, which reveals interesting activity patterns. mempool.observer/monitor/
b10c
@0xB10C
Mar 28, 2023
An entity I call LinkingLion, active since 2018 and on a Monero banlist, is opening connections to many clearnet Bitcoin nodes. Its presumably attempting to link transactions to node IPs. Maybe a chain analysis company trying to enhance its product?
LinkingLion: An entity linking Bitcoin transactions to IPs?
From b10c.me
73K
b10c
@0xB10C
May 6, 2021
MARA Pool mined its first 'clean' block today. mempool.space/block/00000000…
b10c
@0xB10C
Dec 22, 2024
Another sanctioned transaction missing from @f2pool's block 875840 miningpool.observer/template-and-b…
b10c
@0xB10C
Dec 20, 2024
miningpool-observer alerting about a "Sanctioned Transaction missing from Block" on @f2pool_offical's block 875575. I think it was reasonable for F2Pool not to include it as they knew about transactions paying a higher fee - but I'll keep an eye on it miningpool.observer/template-and-b…
69K
b10c
@0xB10C
Dec 18, 2024
btw, I'm still looking for people interested in joining forces on FOSS Bitcoin network monitoring. I'm not able to monitor a 2T dollar network "alone". I have more than double the work I can handle already happy to mentor and introduce to potential grantors if you are interested
Mike Schmidt
@bitschmidty
Dec 18, 2024
On "leaders" in Bitcoin Core Im not interested in wading into semantics and definition hell here, but Ill point out that Bitcoin Core has MANY (what Ill call) project champions. @fanquake has a vision and strong opinions about the build system @MarcoFalke and the CI
31K
b10c
@0xB10C
Sep 16, 2024
I had another look at similarities between mining pool block template by comparing the Merkle branches in the mining jobs. This confirms suspicion about proxy pools and raises the question if some pools are directly peering with each other.
Block Template Similarities between Mining Pools
From b10c.me
47K
b10c
@0xB10C
Jun 4, 2024
P2P connections and messages between my node and its peers in realtime
00:00
15K
b10c
@0xB10C
Jan 29, 2024
I took a look at non-standard transactions in the last 117k blocks. Here's an overview:
An overview of recent non-standard Bitcoin transactions
From b10c.me
37K
b10c
@0xB10C
Apr 20, 2024
Replay of 840000 being mined. Happy halving!
00:00
15K
b10c
@0xB10C
Mar 20, 2024
In January, while investigating a misbehaving client on the Bitcoin P2P network, I found a vulnerability in @ViaBTC's SPV mining code that allowed a remote attacker to waste their 60 EH/s hashrate by sending a single, crafted Bitcoin P2P message. Details:
b10c.me
Vulnerability Disclosure: Wasting ViaBTC's 60 EH/s hashrate by sending a P2P message
In January, while investigating a misbehaving client on the Bitcoin P2P network, I found a vulnerability in ViaBTC’s, the fourth largest Bitcoin mining pool, SPV mining code that allowed a remote...
16K