J-Dog
@BrrrGuy
Jeremy Johnson
Former Counterparty lead developer and maintainer (2016-2024). Creator of FreeWallet.io and TokenScan.io. Bitcoin OG and blockchain pioneer who has been instrumental in shaping the Counterparty ecosystem for nearly a decade.
🏆 Nearly 10 years of continuous development and maintenance of critical Counterparty infrastructure
🔗Connect
🚀Major Projects
FreeWallet.io
ActiveOpen-source, non-custodial Counterparty wallet. The most trusted wallet in the ecosystem.
Key Features:
- •Non-custodial Bitcoin & Counterparty wallet
- •Support for XCP, tokens, and NFTs
- •Integrated DEX trading
- •Dispenser creation and management
- •Open source and community maintained
TokenScan.io
ActivePremier Counterparty blockchain explorer and analytics platform. The go-to resource for Counterparty data.
Key Features:
- •Real-time blockchain explorer
- •Token & NFT tracking
- •Transaction history and analytics
- •Address monitoring
- •API for developers
💻GitHub Repositories & Contributions
counterparty-core
→Lead Maintainer (2016-2024)
Core Counterparty protocol implementation
counterparty-lib
→Core Developer
Counterparty protocol library
freewallet-desktop
→Creator & Maintainer
Desktop version of FreeWallet
freewallet-mobile
→Creator & Maintainer
Mobile wallet application
counterparty2mysql
→Creator
Counterparty SQLite to MySQL migration tool
⚡Areas of Expertise
Blockchain Development
Bitcoin and Counterparty protocol expertise
Database Architecture
SQLite, MySQL, and database optimization
Wallet Development
Non-custodial wallet design and security
API Development
RESTful APIs and blockchain indexing
Infrastructure
Node deployment and maintenance
Community Support
Technical support and documentation
📅Career Milestones
Joined Counterparty as core developer
Began decade-long contribution to ecosystem
Created FreeWallet.io
Provided first truly open-source wallet solution
Launched TokenScan.io
Became de-facto Counterparty blockchain explorer
Became lead maintainer of counterparty-core
Steered protocol development and upgrades
Continuous infrastructure maintenance
Kept ecosystem running through market cycles
Transition and knowledge transfer
Passing torch to next generation of developers
💬Community Recognition
"J-Dog's work on FreeWallet and TokenScan has been absolutely essential to the Counterparty ecosystem. Without his infrastructure, we wouldn't have the tools we rely on daily."
— Community Member
"His advice to query SQLite directly instead of using RPC APIs saved us literally hours of development time. That's the kind of deep knowledge you only get from years in the trenches."
— Developer
"Nearly 10 years of consistent, reliable development. J-Dog is the definition of building in public and supporting a community."
— Long-time User
💡Pro Tips from J-Dog
Query SQLite directly instead of using RPC APIs
"No script to do so using just the CP API.... however, there is cp2mysql which ports all data from counterparty-core into a mysql database where you can easily do stuff like SELECT count(*) from assets, etc.... easy to do if you have a database to query... otherwise if you're already running a cp node... you should be able to query this data directly in the sqlite database.... I prefer to run sql queries vs using CP apis"
This advice saved developers hours of runtime and enabled complete, accurate data extraction!