Cowrie Research

bull-bitcoin-primary-sources-2026-05-01

4 min read

Bull Bitcoin primary-source snapshot

Fetched: 2026-05-01 UTC

1) Official homepage

Source: https://www.bullbitcoin.com/

Selected excerpts from the official site:

Bull Bitcoin is a non-custodial Bitcoin exchange and OTC desk

Buy Bitcoin with self-custody from your bank account

Instant withdrawal

Lightning Network available

Our mission is to create sovereign individuals.

Additional signals from the source:

  • The homepage strongly frames Bull Bitcoin around self-custody, Bitcoin-only positioning, and anti-custodial ideology rather than broad crypto trading
  • The product surface already extends beyond buying into selling, spending, OTC, and a separate support/education layer via BitcoinSupport.com

2) Buy Bitcoin page

Source: https://www.bullbitcoin.com/buy

Selected excerpts from the page:

Input a Bitcoin address or use the Lightning or Liquid network

Once you confirm the order, we create a real Bitcoin transaction

The Bitcoin is sent straight to your Bitcoin wallet

Try our “recurring buy” option for a dollar-cost averaging strategy

Additional signals from the source:

  • This page makes the operating model very explicit: Bull Bitcoin is not warehousing user BTC first and asking them to withdraw later
  • The inclusion of Bitcoin, Lightning, and Liquid destinations suggests the exchange should be cataloged as multi-rail Bitcoin infrastructure, not just a brokerage front end

3) Lightning scaling post

Source: https://www.bullbitcoin.com/blog/scaling-bull-bitcoins-non-custodial-services-with-the-lightning-network

Selected excerpts from the post:

Bull Bitcoin users can now buy Bitcoin using their account balance and receive the payment in their own Bitcoin wallet using the Lightning Network.

Users can also sell their Bitcoin using the Lightning Network and receive fiat payments the same day in their bank account, or pay any third party biller in Canada using the Bylls payment services

The software developed for Bull Bitcoin’s lightning network integration, LNURL-Cypherapp, is entirely open-source

This system was designed so that Bull Bitcoin does not accidentally become custodian of its users’ bitcoin if they fail to redeem the Bitcoin after they have made their purchase.

Additional signals from the source:

  • This is one of the strongest categorization clues because it shows Bull Bitcoin designing Lightning flows specifically to preserve the non-custodial model under operational edge cases
  • The post also reveals in-house infrastructure work, fallback-address logic, and open-source release of exchange-related Lightning tooling

4) BULL wallet launch post

Source: https://www.bullbitcoin.com/blog/bull-by-bull-bitcoin

Selected excerpts from the post:

It’s fully open-source, with reproducible builds coming soon

Segwit-native descriptor based wallet using the battle-tested BDK library

You can connect it to your own node

Supports coin selection and labelling

When receiving payments, a BULL user can choose to receive via Lightning, Bitcoin or Liquid.

We are also the only wallet that comes with an autoswap feature

Additional signals from the source:

  • The wallet post shows that Bull Bitcoin is no longer only an exchange; it is building a first-party wallet and routing stack around Bitcoin, Liquid, and Lightning
  • Privacy and control features like payjoin, coin labeling, own-node connectivity, and hardware-wallet support make the product feel closer to wallet infrastructure than a simple branded companion app

5) GitHub / README for BULL Wallet

Sources:

Selected excerpts from the README:

BULL Wallet is a self-custodial Bitcoin and Liquid Network wallet which offers non-custodial atomic swaps across Bitcoin, Lightning and Liquid.

The app can be built reproducibly from source and verified against official releases.

At launch, two wallets are generated: the Secure Bitcoin Wallet and the Instant Payments Wallet.

Users can connect to their own electrum server.

Users will be able to manage their Bull Bitcoin accounts, buy Bitcoin and sell Bitcoin.

Use of the Bull Bitcoin exchange is fully optional.

Additional signals from the source:

  • The README clarifies the internal architecture and confirms optional exchange integration rather than wallet lock-in
  • Reproducible builds, BIP-329 labels, watch-only wallets, PSBT flows, and optional own-server connectivity make this a meaningful open-source self-custody stack

Notes

  • Bull Bitcoin appears best cataloged as bitcoin exchange / self-custody wallet-and-payments stack / non-custodial Lightning-and-Liquid infrastructure.
  • No canonical standalone whitepaper or litepaper surfaced in this pass.
  • The most useful primary sources were the main site, the buy page, the Lightning-integration blog post, the BULL wallet launch post, and the open-source wallet repository.

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