Blockstream is a Bitcoin infrastructure and technology company founded in 2014 by Adam Back (CEO) — the inventor of Hashcash (the proof-of-work algorithm that directly inspired Bitcoin’s mining), Greg Maxwell, Pieter Wuille, Matt Corallo, and others who are among the most prominent Bitcoin Core developers in the world. Based in Victoria, British Columbia, Blockstream has built significant layers of Bitcoin infrastructure including the Liquid Network (a Bitcoin sidechain), Blockstream Satellite, and Blockstream Mining — while its founders have contributed foundational cryptographic improvements to Bitcoin itself including Schnorr signatures and Taproot.
Background
Blockstream was the first significant company built explicitly around extending Bitcoin rather than competing with it. The 2014 founding paper outlined the concept of “pegged sidechains” — allowing Bitcoin to move to alternate chains with different properties and back, without creating new tokens. The founders’ deep involvement in Bitcoin Core development made Blockstream uniquely influential in Bitcoin’s technical direction.
Key Products
| Product | Description |
|---|---|
| Liquid Network | Bitcoin sidechain for fast, confidential settlement among exchanges and institutions |
| Liquid BTC (L-BTC) | Bitcoin pegged to the Liquid sidechain for trading and issuance |
| Blockstream Satellite | Broadcasting the full Bitcoin blockchain via satellite to enable offline/censorship-resistant node operation |
| Blockstream AMP | Asset management platform for issuing securities and stablecoins on Liquid |
| Blockstream Mining | Institutional Bitcoin mining and colocation services |
| Blockstream Jade | Open-source Bitcoin hardware wallet with air-gapped capability |
| Green Wallet | Self-custody Bitcoin and Liquid wallet with multisig |
Liquid Network
Liquid is a federated sidechain — a Bitcoin layer-2 operated by a federation of exchanges and institutions (Bitfinex, Kraken, Bitbank, and ~60 others). It enables:
- Fast settlement: 2-minute block times vs. Bitcoin’s 10-minute average
- Confidential transactions: Amounts and asset types hidden by default using Pedersen commitments
- Asset issuance: Tokenized securities, stablecoins, and other assets on a Bitcoin-secured chain
Adam Back Significance
Adam Back’s Hashcash (1997) is cited directly in the Bitcoin whitepaper. Satoshi Nakamoto corresponded with Back before publishing Bitcoin. Back is one of the few pre-Bitcoin cypherpunks actively building Bitcoin infrastructure, giving Blockstream credibility and philosophical alignment unique among crypto companies.
Related Terms
Sources
- Blockstream Website — products and research.
- Liquid Network — sidechain documentation and member list.