Custody
Digital asset custody solution for capital markets, under governance your firm controls.
The future of finance, built on bitcoin.
We make sure that future belongs to you.
Blockstream provides full-stack, bitcoin-native solutions that empower individuals, developers, and enterprises to hold their own keys, build on open infrastructure, and run their financial lives on bitcoin.
Blockstream provides full-stack, bitcoin-native solutions that empower
individuals, developers, and enterprises to hold their own keys,
build on open infrastructure, and run their financial lives on bitcoin.
Everything we build is based on bitcoin, the most secure monetary network in the world.
Lightning, Liquid, and Simplicity carry bitcoin's security into payments, assets, and contracts that are fast, private, and predictable.
Financial tools that offer more control, less risk, cost, time, and friction.
Custody and treasury management
Trading and tokenization
Payments and settlement
Contracts and data
BLOCKSTREAM ENTERPRISE
Finance, forward.
Custody, tokenization, dedicated blockchains, and data for institutions, under governance your firm controls.
Tokenization
Issue and manage digital assets, with full lifecycle control.
Enterprise Blockchains
Full-stack, modular infrastructure to deploy blockchains for institutions.
Blockchain Data
Fully indexed bitcoin and Liquid data, without the backend hassle.
BLOCKSTREAM CONSUMER
Self-custody is
the standard.
Take control of your bitcoin with Jade hardware.
Bring it into your daily life with the Blockstream app.
Jade
Open-source, offline key storage and dedicated hardware.
Blockstream app
Send, receive, and swap on mainnet, Lightning, and Liquid.
BLOCKSTREAM CONSULTING
Expert guidance
for digital asset
adoption.
We help financial institutions safely navigate digital
asset strategy and implementation, and adhere to essential standards.
Build on your existing systems.
We design custody and settlement frameworks that integrate with your core banking systems and meet your institution’s standards.
Ship fast without headaches.
Our engineers and domain experts handle the technical complexity of custody, key management, and ongoing monitoring.
Offload your hardest problems.
We apply deep experience in bitcoin, cryptography, and secure infrastructure to solve your operational challenges.
BLOCKSTREAM DEVELOPER
Build on the stack we
run in production.
Open-source nodes, libraries, and APIs for bitcoin,
Liquid, and Lightning.
Simplicity
High-assurance smart contracting.
Core Lightning
Instant bitcoin payments, tailored to your stack.
Data Feed
Price, analyze, and settle with one feed.
Liquid
Bitcoin's financial layer.
Liquid Wallet Kit
Everything Liquid can do, a function call away.
BLOCKSTREAM RESEARCH
We are bitcoin veterans.
Blockstream has pioneered bitcoin development since 2014.
2014
Sidechains
We co-authored the paper that introduced sidechains; Liquid has run on it since 2018.
Learn more2014–2024
Bitcoin Core contributions and maintainership
Blockstream engineers (including Pieter Wuille, Matt Corallo, and Andrew Chow) served as long-time Bitcoin Core maintainers and leading contributors across consensus, wallet architecture, and P2P networking.
Learn more2014–now
libsecp256k1 maintenance
Blockstream engineers have been major contributors to and maintainers of the high-performance secp256k1 library used by Bitcoin Core for signatures, as well as maintaining libsecp256k1-zkp for Liquid. The library itself predates Blockstream.
Learn more2015
Lightning
Rusty Russell built the first Lightning implementation at Blockstream, later Core Lightning, and chaired the BOLTs process that produced the interoperable Lightning specification.
Learn more2015
Confidential Transactions
We invented them; they have hidden amounts and asset types on Liquid since 2018.
Learn more2015
OP_CHECKSEQUENCEVERIFY
Blockstream co-founder Mark Friedenbach invented the use of sequence numbers for relative locktime and wrote the reference implementation of OP_CHECKSEQUENCEVERIFY, standardized in BIP 112 and activated on bitcoin in 2016.
Learn more2015
SegWit
Co-authored BIP 141, live on bitcoin since 2017.
Learn more2015
Versionbits
Co-authored BIP 9, the mechanism bitcoin uses to deploy soft forks.
Learn more2016
Compact blocks
Authored BIP 152, relaying blocks in every Bitcoin Core node.
Learn more2016
FIBRE
Built the fast relay network that sped blocks between mining pools.
Learn more2017
Bech32 / 2021 Bech32m
Pieter Wuille and Greg Maxwell authored BIP 173, introducing the Bech32 address format used for native SegWit; Pieter later designed Bech32m (BIP 350) for Taproot and future witness versions.
Learn more2017
PSBT
Authored BIP 174, the standard for passing unsigned transactions between wallets.
Learn more2017
Confidential Assets
Blockstream researchers extended Confidential Transactions to hide not only amounts but also asset types, enabling confidential multi-asset transactions on Elements and Liquid.
Learn more2017
Blockstream Satellite
Launched the first real-time broadcast of bitcoin blocks from satellites.
Learn more2017
Bulletproofs
Co-authored the range proofs that keep confidential amounts compact.
Learn more2017
Scriptless Scripts and PTLCs
Andrew Poelstra pioneered Scriptless Scripts and introduced the Schnorr/adaptor-signature construction underlying Point Time Locked Contracts for Lightning.
Learn more2017
Simplicity
Announced the formally verifiable smart-contract language, live on Liquid since 2025.
Learn more2018
MuSig
Blockstream researchers co-developed MuSig, introducing secure Schnorr multi-signatures (multisig) with key aggregation so that an n-of-n multisig can appear on-chain as a single public key and signature.
Learn more2018
Output descriptors
Created the standard way wallets describe what they can spend.
Learn more2018–2020
Schnorr and Taproot
Blockstream researchers played a central role in designing and specifying bitcoin’s Schnorr signature scheme and Taproot, co-authoring BIP 340 and BIPs 341/342. They activated on bitcoin in 2021.
Learn more2019
BIP 324
Co-authored bitcoin’s encrypted peer-to-peer transport protocol.
Learn more2019
Erlay
Co-authored the relay protocol that cuts node bandwidth.
Learn more2019
Miniscript
Designed at Blockstream Research; in Bitcoin Core since 2022.
Learn more2020
MuSig2
Co-developed the multisig scheme standardized as BIP 327.
Learn more2021
CAT and Schnorr tricks
Andrew Poelstra developed the CAT-and-Schnorr construction, showing how OP_CAT and BIP 340 signatures can emulate CHECKSIGFROMSTACK-like functionality and enable transaction introspection and general-purpose bitcoin covenants.
Learn more2021
Minimint / Fedimint
Eric Sirion developed Minimint (later Fedimint) while supported by Blockstream Research, introducing federated Chaumian e-cash for bitcoin to enable community-custody mints interoperable with the Lightning Network.
Learn more2022
ROAST
Blockstream researchers co-developed ROAST, a robust asynchronous wrapper for threshold signature schemes such as FROST that allows honest signers to complete signing despite offline or malicious participants.
Learn more2023
codex32
Designed a recovery-phrase backup scheme you can verify by hand.
Learn more2023
ProtoGalaxy
Liam Eagen and Ariel Gabizon published ProtoGalaxy, an efficient multi-instance folding scheme for recursive arguments and Incremental Verifiable Computation (IVC) without trusted setup or pairings, providing the cryptographic foundation for private client-side validation.
Learn more2024
Bulletproofs++
Blockstream Research developed Bulletproofs++, a substantially smaller and faster successor to Bulletproofs and Bulletproofs+ for Confidential Transactions that introduced reciprocal arguments to eliminate surjection proofs. The work was published at EUROCRYPT 2024.
Learn more2024
BOLT 12
Authored the offers spec, the first new Lightning BOLT since 2017.
Learn more2024
ChillDKG
Authored the distributed key generation spec for FROST wallets.
Learn more2024
Shielded Client-Side Validation
Blockstream Research, together with Alpen Labs and ZeroSync, introduced Shielded CSV, combining client-side validation with cryptographic techniques to hide transaction histories while retaining compact on-chain commitments.
Learn more2024
ColliderScript
Andrew Poelstra co-developed ColliderScript, demonstrating that bitcoin covenants are theoretically possible today without a consensus change, albeit at completely impractical computational cost.
Learn more2024
Formal verification of libsecp256k1 modular inversion (safegcd)
Russell O’Connor developed machine-checked proofs in Coq verifying the correctness and constant-time execution of the Bernstein–Yang modular inverse algorithm in libsecp256k1.
Learn more2024
SimplicityHL (formerly Simfony)
Russell O’Connor, Christian Lewe, and Sanket Kanjalkar developed the first version of Simfony (later renamed SimplicityHL), a high-level, strongly typed smart-contract language and web IDE that compiles to Simplicity, bridging low-level Simplicity combinators to accessible covenant development.
Learn more2025
DahLIAS and cross-input signature aggregation
Blockstream Research and Yannick Seurin developed DahLIAS, the first full cross-input signature aggregation scheme for bitcoin’s native secp256k1 curve, producing constant-size aggregate signatures. The work was accepted at EUROCRYPT 2026.
Learn more2025
Post-quantum security of Taproot commitments
Tim Ruffing proved that bitcoin’s Taproot tweaking construction is computationally binding and hiding against quantum adversaries under standard hash assumptions, establishing that Taproot script trees created today can safely host post-quantum spending and recovery paths.
Learn more2025
secp256k1lab
Blockstream Research released secp256k1lab, a Python implementation of the secp256k1 curve and related cryptographic schemes designed for rapid prototyping, experimentation, and education.
Learn more2025
“Provable Cryptography for Bitcoin” workbook
Blockstream Research published an open-source workbook and training curriculum to train Bitcoin Core and ecosystem developers in reduction-based security proofs and provable cryptography.
Learn more2026
Post-quantum signatures
First post-quantum-signed transactions on a production bitcoin sidechain, on Liquid.
Learn more2026
SHRINCS and OP_CHECKSHRINCS
Blockstream Research designed SHRINCS, a compact hash-based post-quantum signature scheme optimized for bitcoin and Liquid. We broadcast what we believe were the first transactions on a production bitcoin sidechain authorized using post-quantum signatures (verifying SHRINCS via Simplicity on Liquid mainnet) and authored a draft BIP proposal for OP_CHECKSHRINCS on bitcoin.
Learn moreBlockstream Research explores cryptography and protocol design for bitcoin. Since 2014, we’ve contributed to the primitives the industry runs on.
Bitcoin.
Signature and scripting upgrades adopted by the network.
Liquid.
Privacy, contract, and settlement features.
Wallets industry-wide.
Libraries that ship inside Bitcoin Core and industry-wide wallet software.
Publications.
Research accepted at IEEE S&P, CRYPTO, and EUROCRYPT.
The financial system is moving onto bitcoin.
2020
70K BTC held
by public companies
in 2020
by public companies
in 2020
2021
2022
2023
2024
2025
2026
1.26M BTC held
by public companies
in 2026
by public companies
in 2026
2020
70K BTC held by public companies in 2020
2026
1.26M BTC held by public companies in 2026
Join the new financial frontier.
Get product and engineering updates.