Happy to announce that our new Community Sponsor program is now live! Support The Mempool Open Source Project and get t-shirts, color-changing mugs, and more as a gift in return. Sign up now -- swag just started shipping!

The Mempool Open Source Project®

Explore the full Bitcoin ecosystem with The Mempool Open Source Project®. See the real-time status of your transactions, get network info, and more.

Check out our inaugural mempool research report which dives deep into the empty block phenomenon!

mempool research

Empty Block Report

A data driven analysis of the bitcoin empty block phenomenon.

2024 is the year we accelerate Sign up to get notified when Mempool Accelerator launches.

The Mempool Open Source Project®

Explore the full Bitcoin ecosystem with The Mempool Open Source Project®. See the real-time status of your transactions, get network info, and more.

Introducing Mempool Goggles! Have you ever wished you had x-ray specs to see exactly what's inside the mempool? No, me neither, but we built you a pair anyway. https://image.nostr.build/6dfffff690ae12803d3646886ba448f2dfb1b9a1e4d3be35963bee0afdc9d8ec.jpg#m=image%2Fjpeg&dim=893x900&blurhash=%7CAGjj%3D%2BwDgE01OKHD%7D-%40%238o%5Df-sFr%3ASJa*xGX8NFD4S%5Eb%24gRT3rY%255Z%7CO%3FrxwHJNKR%24%2BfzJ7nNxcOtWHg9nJj9TKi%5DW%3DV%40nMbuxwnNNHe%3AoHkCWS5ts*xlR%3Az%3FajT0bvS%24ktNHnLt7NZw%40R%3BT1w%5EJENem*XUPD%23%7Es%2BnOr%3F&x=a1f1c72026d28ee865cc29a3c2a0da3bfe676f5f3ad35374b9f1898f27a17e02 Click on the Mempool Goggles icon at the top left of the mempool block visualization to reveal the new filter menu. There are 25 different categories to explore, or mix-and-match to narrow down your focus even further. https://image.nostr.build/989f42be01721cedfac90f517c83d3dd0791bd0699b7ab62e6a13586c5fca1ae.jpg#m=image%2Fjpeg&dim=669x680&blurhash=%7C29ZWg*JS6XR9_In0zRO0f-%3AoM%251kWkXs%2CR.w%5BIV9EMdtlWYbHxao%23xtj%5E%25Ms%3Bt7V%40kCoeRjt6R-9ERPoyV%40tlt7ogxaa%23VrM%7Bg3bIR*oLbct7o2EhV%40ofogf5ofV%40o0ofIAR%25R%2BaKWBflj%3FW%3DxtGbs%3ARPWVZ%7ER*slR-t6&x=78b74823e7a3f02cefef36ed5c2f7eb2ef596bae239446ff995de73ec8efd13a Want to see how much of the mempool is occupied by monkey jpegs? Try the "Inscription" filter. Curious how many transactions use both RBF and CPFP to bump fees? Hit the "Replacement" and "Pays for parent" filters. https://image.nostr.build/faf9fcc03e238f6dcdfc9a6db242521816f4aca3e6b43c7fd83a0bd07bb1ff69.jpg#m=image%2Fjpeg&dim=669x680&blurhash=%7C29PQd%5Ek1PNZ0%7CaIEfNGxHtTx%5ExuoIacRhRiaeo3Bqkr%252oIjDngngniWXOtT1X9sls8ngr%3DWBS4BWXAxaj%3Fn%23nhWAaxWXs%3BShoLxFS1axf5S2WWE%25WBjYa%7Ds%3Aofs%3AW%3BS2V%3FV%3FjEWXSis%3Bs%3BofWoM%7BV%3DnhS5S%24bdogs%3AoJ&x=81cf8255ab24c9456ed933da5f475b24f76334c8d3e20637aad3420af5f108f7 From simple mempool analysis to advanced technical insights, Mempool Goggles has something for everyone. Check it out now on the mempool block page

The Mempool Open Source Project®

Explore the full Bitcoin ecosystem with The Mempool Open Source Project®. See the real-time status of your transactions, get network info, and more.

Recent median fee rates are below 20 sat/vB despite the presence of over 557,000 unconfirmed transactions in our mempool.

🟧🟧8️⃣0️⃣0️⃣0️⃣0️⃣0️⃣ 🟪🟪🟪

We’re working on major improvements to The Mempool Open Source Project as part of our upcoming v3.0 release. Here are some of them, which are already live on mempool.space --- 1/ We’ve re-implemented our block template algorithm in Rust for improved accuracy and performance. Before: After: --- 2/ We’ve begun visualizing both `mempoolfullrbf=0` and `mempoolfullrbf=1` transactions together on our RBF timeline. --- 3/ We’ve forked blockstream/electrs to mempool/electrs and made many fixes and improvements. (it's a breaking change -- mempool/mempool 3.x will require mempool/electrs 3.x)

GitHub

GitHub - mempool/electrs: An efficient re-implementation of Electrum Server in Rust

An efficient re-implementation of Electrum Server in Rust - mempool/electrs

--- 4/ We’ve started integrating Mempool Accelerator™ --- 5/ We now display and index P2PK outputs using their public keys. Here's the first Bitcoin transaction from Satoshi to Hal Finney:

The Mempool Open Source Project®

Explore the full Bitcoin ecosystem with The Mempool Open Source Project®. See the real-time status of your transactions, get network info, and more.

--- 6/ We’ve made mempool blocks scrollable (most useful on mobile) --- 7/ We’ve imported historical mempool data from 2017 and 2018, thanks to a contribution from Jochen Hoenicke (

Johoe's Bitcoin Mempool Size Statistics

Johoe

--- 8/ There's more coming for the full 3.0 release, stay tuned!

Tick tock, next block...

The Mempool Open Source Project®

Explore the full Bitcoin ecosystem with The Mempool Open Source Project®. See the real-time status of your transactions, get network info, and more.

If you needed another reason to read/subscribe to the excellent Bitcoin Optech Newsletter...glozow and murch have been contributing a series on mempool policy for the past few weeks. Part 8 came out this week. Each written part of the series is accompanied by a discussion on the Bitcoin Optech Podcast.

Bitcoin Optech

Bitcoin Optech Newsletter #258

This week’s newsletter includes another entry in our limited weekly series about mempool policy, plus our regular sections announcing new release...

Something about single-digit fees, green blocks, and posting about it all on nostr...feels good, wagmi

Trusted third parties are usability holes