Happy Birthday, LinkingLion!
A year ago I reported about LinkingLion, an entity that's presumably linking transactions to IP addresses and has been opening hundreds of connections per minute to my monitoring nodes.
An update: https://b10c.me/blog/013-one-year-update-on-linkinglion/
Update on LinkingLion: Reduced activity and a statement by LionLink Networks
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.
https://b10c.me/blog/012-viabtc-spv-vulnerability-disclosure/
tl;dr: ViaBTC didn't check the header merkle root in their P2P client. Sending a block message with an old header and a modified coinbase transaction caused them to SPV mine on the old header for 30s at a time. I responsibly disclosed this to ViaBTC, and they awarded 2000 USDT.
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.
https://b10c.me/blog/012-viabtc-spv-vulnerability-disclosure/
I took a look at non-standard transactions in the last 117k blocks. Here's an overview:
https://b10c.me/observations/09-non-standard-transactions/?n
They were all picked up by other miners
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: https://b10c.me/observations/08-missing-sanctioned-transactions?n
MaraPool mined an invalid block at 809478 on mainnet. I observed the block on 9 out of 9 nodes.
ERROR: ConnectTip: ConnectBlock 000000000000000000006840568a01091022093a176d12a1e8e5e261e4f11853 failed, bad-txns-inputs-missingorspent, CheckTxInputs: inputs missing/spent
It's this one apparently: https://mempool.space/block/00000000000000000000ef263c1a23ba30872e9982352562df5e84115b806050
more reorgs https://void.cat/d/J8YTKxTAnMTTY6evHzi3N.webp
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A tool to create amazing a notstr account. It's not optimized yet. Try : [https://shanelau.github.io/nostr-get-luck-account/](https://shanelau.github.io/nostr-get-luck-account/)
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uh, nice. I*ve written a similar thing, but I*m only grinding the start.
hello high-PoW world