Renowned Bitcoin developer Peter Todd has joined the MARA Foundation as the lead developer for Slipstream. This private mempool service allows users to send transactions directly to the company's mining pool, enhancing privacy and security by bypassing the public peer-to-peer (P2P) network.
Peter Todd's arrival at the MARA Foundation
In a strategic move for the development of mining infrastructure, Peter Todd has joined the MARA Foundation as the lead developer of SlipstreamThe private mempool service operated by the mining giant. This appointment puts one of the ecosystem's most veteran developers at the helm of a project designed to optimize how transactions are processed and confirmed on the network.
Slipstream functions as a direct channel between users and MARA Pool. Instead of broadcasting a transaction across the public Bitcoin node network, where anyone can see it before it's included in a block, users can send it privately. Todd will be responsible for developing, maintaining, and expanding the capabilities of this service, using it as a testing ground for protocol innovation.
What is Slipstream and how does it transform the Bitcoin mempool?
To understand the magnitude of this development, it's essential to understand what a mempool is. Simply put, a mempool (memory pool) is the waiting room where Bitcoin transactions sit until a miner selects them and includes them in a block. On the standard network, this waiting room is public; all nodes share information about pending transactions.
Slipstream disrupts this dynamic by offering a private mempool. Transactions sent through this service are not broadcast to the rest of the P2P network. They remain hidden on MARA's servers until the pool successfully mines a block and includes them in it. This feature is especially valuable for complex or high-value transactions that require discretion before their final confirmation on the blockchain.
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Advanced security: The case of exploits in hardware wallets
The usefulness of private mempools was convincingly demonstrated last July. During that period, a group of attackers exploited vulnerabilities in certain hardware wallets, managing to steal more than €105 million in user funds. The attack vector relied, in part, on information exposed in the public mempool.
When a transaction is sent via Slipstream, critical data remains private until the transaction is confirmed in a block. This helps keep key information hidden before confirmation, protecting users' public keys from exposure. By reducing the window of time in which data is visible to malicious actors, the risks associated with certain types of network attacks are significantly mitigated.
Peter Todd's track record and his vision for the crypto ecosystem
Peter Todd is no newcomer. He's a longtime Bitcoin Core contributor with a resume that includes co-authoring BIP 125 (Replace-By-Fee, or RBF), creating OpenTimestamps, and, most recently in 2024, spearheading Libre Relay. The latter is a fork of Bitcoin Core designed with more flexible relay rules for non-standard transactions.
Todd has consistently argued that mempool policies should align with market demand, allowing miners to process what users actually need, rather than imposing artificial restrictions on how Bitcoin is used. In his own words, working with Slipstream is a natural complement to his work at Libre Relay, offering a unique opportunity to bridge the gap between Bitcoin Core developers and the mining industry.
For those interested in participating in the ecosystem and acquire Bitcoin To build your portfolio, understanding how figures like Todd influence network security and efficiency is a key step in making informed decisions.
Experimental projects: Ordinals, Binohash and the future
Slipstream first caught the community's attention in early 2024 when it was used to post large Ordinal inscriptions that would otherwise have been rejected by the standard public mempool rules due to their size. However, its potential extends far beyond collectible digital assets.
Recently, the service has been used for cutting-edge research projects, such as Quantum Safe Bitcoin and Binohash. The latter is an experimental method for emulating covenants (restrictions on how funds can be spent in the future) without needing to implement a soft fork on the main network. With Todd at the helm, Slipstream is expected to solidify its position as the ultimate testing ground for these types of technological innovations.
FAQ
What is a private mempool?
It's a service that allows you to send crypto transactions directly to a specific miner or mining pool, without them being publicly broadcast on the P2P network. This keeps the transaction details hidden until they are confirmed in a block.
Who is Peter Todd?
He is a veteran developer and cryptographer, known for his fundamental contributions to Bitcoin Core, including the Replace-By-Fee protocol (BIP 125) and OpenTimestamps. His work focuses on security, scalability, and transaction relay policies.
Why is Slipstream important for safety?
By hiding transactions before confirmation, Slipstream prevents malicious actors from analyzing sensitive data in real time, such as exposed public keys, protecting users against certain exploits and network attacks.
What is Libre Relay?
It is a modified version of Bitcoin software, spearheaded by Peter Todd, that relaxes the relay rules, allowing complex or non-standard transactions to circulate on the network if miners deem it economically viable to process them.
The addition of top-tier technical talent to mining infrastructure projects underscores the growing maturity of the network. As new security and scalability challenges arise, solutions like private mempools will play a crucial role in the ecosystem's evolution.
Peter Todd's leadership at Slipstream not only strengthens MARA's position in the mining sector, but also opens the door to a new phase of technical experimentation that could define the standards of privacy and efficiency in the coming years.
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