BitcreditProtocol/E-Bill
Nov 2024 – Feb 2026
16 Months active
Languages Used
DockerfileJSONMarkdownRustTypeScriptHTTPTOMLSQL
Technical Skills
API DesignAPI DevelopmentAPI IntegrationAsynchronous ProgrammingBackend DevelopmentConfiguration Management
Thomas Profelt
PROFILE
Thomas Profelt
Over 16 months, [Name] engineered core features for BitcreditProtocol/E-Bill, focusing on secure, event-driven billing and identity workflows. They designed and implemented notification systems, Nostr protocol integration, and robust contact management, using Rust, TypeScript, and WebAssembly. Their work included encrypted messaging, blockchain event processing, and multi-identity support, addressing privacy, reliability, and governance challenges. By refactoring APIs and introducing modular event handling, [Name] improved testability and system resilience. They also resolved data serialization issues for JavaScript interoperability and enforced business rules for signatory management, demonstrating depth in backend development and cross-protocol integration within a complex, distributed financial application.
Overall Statistics
Feature vs Bugs
89%Features
Repository Contributions
62Total
Bugs
4
Commits
62
Features
33
Lines of code
112,069
Activity Months16
Your Network
8 people
Work History
February 2026
2 Commits • 1 Features
Feb 1, 2026February 2026 (BitcreditProtocol/E-Bill): Delivered key governance and data integrity improvements. Implemented Company Signatory Management with safeguards to remove invited signatories and prevent removing the last proven signatory, including validations, signatory status updates, and a dedicated test case. Fixed JavaScript precision issues by serializing u64 amounts as strings, updating data structures and serialization logic for safe interoperability with JS numbers. These changes reduce governance risk, improve cross-language data consistency, and strengthen overall reliability for high-value transactions.
2 Commits • 1 Features
Feb 1, 2026February 2026 (BitcreditProtocol/E-Bill): Delivered key governance and data integrity improvements. Implemented Company Signatory Management with safeguards to remove invited signatories and prevent removing the last proven signatory, including validations, signatory status updates, and a dedicated test case. Fixed JavaScript precision issues by serializing u64 amounts as strings, updating data structures and serialization logic for safe interoperability with JS numbers. These changes reduce governance risk, improve cross-language data consistency, and strengthen overall reliability for high-value transactions.
February 2026
January 2026
5 Commits • 2 Features
Jan 1, 2026January 2026 monthly summary for BitcreditProtocol/E-Bill. Key features delivered include Contact Sharing Enhancements and Validation (optional mint URL added to contact data; cross-service usage and bi-directional sharing; validation improvements) implemented with commits 61f3ff589fadbfde971fdc3a0aa4a8d8b0c10837 and 96f1159f1cc575f48ebae542e1eccc60eecdb603, and Esplora API URL Fallback and Retry (multi-base URLs and retry logic to improve blockchain data fetch resilience) implemented with commit 3055a5f4de231568e5f4ca3118cd24fdac77e372. Major bugs fixed include Notification Deduplication using event IDs to prevent duplicate notifications (commit d4c98f2e66382c4b05a2b241e29f6170163825c2) and Event Processing Throttling to prevent overflooding by aligning timestamp handling for direct messages (commit 47d894b0a04e418595c261d4d62336c82b2e0e9e). Overall impact and accomplishments: improved sharing capabilities and data integrity, reduced notification noise, and more reliable blockchain data access, contributing to better user experience and system scalability. Technologies/skills demonstrated: data modeling and validation, cross-service integration, ID-based deduplication, retry/fallback patterns, robust timestamp handling, and performance optimization.
January 2026
5 Commits • 2 Features
Jan 1, 2026January 2026 monthly summary for BitcreditProtocol/E-Bill. Key features delivered include Contact Sharing Enhancements and Validation (optional mint URL added to contact data; cross-service usage and bi-directional sharing; validation improvements) implemented with commits 61f3ff589fadbfde971fdc3a0aa4a8d8b0c10837 and 96f1159f1cc575f48ebae542e1eccc60eecdb603, and Esplora API URL Fallback and Retry (multi-base URLs and retry logic to improve blockchain data fetch resilience) implemented with commit 3055a5f4de231568e5f4ca3118cd24fdac77e372. Major bugs fixed include Notification Deduplication using event IDs to prevent duplicate notifications (commit d4c98f2e66382c4b05a2b241e29f6170163825c2) and Event Processing Throttling to prevent overflooding by aligning timestamp handling for direct messages (commit 47d894b0a04e418595c261d4d62336c82b2e0e9e). Overall impact and accomplishments: improved sharing capabilities and data integrity, reduced notification noise, and more reliable blockchain data access, contributing to better user experience and system scalability. Technologies/skills demonstrated: data modeling and validation, cross-service integration, ID-based deduplication, retry/fallback patterns, robust timestamp handling, and performance optimization.
December 2025
5 Commits • 4 Features
Dec 1, 2025December 2025 monthly summary focused on delivering high-impact features in BitcreditProtocol/E-Bill, expanding Nostr protocol capabilities for privacy and reliability, and strengthening quality assurance. The work emphasized business value through improved user flows, multi-identity privacy, and more robust relay networking.
5 Commits • 4 Features
Dec 1, 2025December 2025 monthly summary focused on delivering high-impact features in BitcreditProtocol/E-Bill, expanding Nostr protocol capabilities for privacy and reliability, and strengthening quality assurance. The work emphasized business value through improved user flows, multi-identity privacy, and more robust relay networking.
December 2025
November 2025
4 Commits • 2 Features
Nov 1, 2025November 2025 performance summary for BitcreditProtocol/E-Bill focused on security hardening, reliability, and user-centric identity features in the Nostr-enabled workflow. Key improvements include a transport-based Notification/Event Handling System with sender validation for NIP17 events to improve block propagation reliability and security; spam-filter hardening for NIP17 sender checks; and a new User Identity and Contact Management flow that publishes identities to Nostr contacts and supports a list/approve/reject sharing workflow to enhance identity integrity and user interaction. These changes were delivered via targeted commits linked to milestones (#724, #743, #744, #750). Overall impact includes more trustworthy event propagation, reduced noise from spoofed messages, improved identity management, and better release traceability.
November 2025
4 Commits • 2 Features
Nov 1, 2025November 2025 performance summary for BitcreditProtocol/E-Bill focused on security hardening, reliability, and user-centric identity features in the Nostr-enabled workflow. Key improvements include a transport-based Notification/Event Handling System with sender validation for NIP17 events to improve block propagation reliability and security; spam-filter hardening for NIP17 sender checks; and a new User Identity and Contact Management flow that publishes identities to Nostr contacts and supports a list/approve/reject sharing workflow to enhance identity integrity and user interaction. These changes were delivered via targeted commits linked to milestones (#724, #743, #744, #750). Overall impact includes more trustworthy event propagation, reduced noise from spoofed messages, improved identity management, and better release traceability.
October 2025
8 Commits • 4 Features
Oct 1, 2025October 2025 monthly summary for BitcreditProtocol/E-Bill focused on reliability, performance, and recovery workflows. Delivered major Nostr integration improvements (contact system and initialization stability) and a Borsh serialization refactor for E-Bills, complemented by a public resync API and test UI to support identity/company chain repair. Implemented configurable subscription delays, on-demand connection, and robust error handling to eliminate race conditions and stabilize initialization. These efforts reduced incident response time, improved data integrity, and enabled faster repair and onboarding of new users.
8 Commits • 4 Features
Oct 1, 2025October 2025 monthly summary for BitcreditProtocol/E-Bill focused on reliability, performance, and recovery workflows. Delivered major Nostr integration improvements (contact system and initialization stability) and a Borsh serialization refactor for E-Bills, complemented by a public resync API and test UI to support identity/company chain repair. Implemented configurable subscription delays, on-demand connection, and robust error handling to eliminate race conditions and stabilize initialization. These efforts reduced incident response time, improved data integrity, and enabled faster repair and onboarding of new users.
October 2025
September 2025
5 Commits • 3 Features
Sep 1, 2025Delivered a set of features and reliability improvements for BitcreditProtocol/E-Bill in September 2025, focusing on bill chain integrity, Nostr-based identity coverage, and secure contact management. Emphasis on business value through robust data recovery, broader event subscription, and encrypted publishing/sharing workflows, with test-driven quality signals.
September 2025
5 Commits • 3 Features
Sep 1, 2025Delivered a set of features and reliability improvements for BitcreditProtocol/E-Bill in September 2025, focusing on bill chain integrity, Nostr-based identity coverage, and secure contact management. Emphasis on business value through robust data recovery, broader event subscription, and encrypted publishing/sharing workflows, with test-driven quality signals.
August 2025
3 Commits • 2 Features
Aug 1, 2025August 2025 — BitcreditProtocol/E-Bill: Implemented a Nostr-based restoration and recovery workflow for identities and companies, and introduced governance controls on signatories. The work delivered includes an identity processor and handler, DM-based restoration flows, and enhancements to minting, billing processing, and event notifications during recovery. Also added an 'active' flag on company records to disable inactive signatories, with updated data structures and UI/API filtering to ensure inactive entities are not visible to users. These changes improve disaster recovery readiness, reduce manual restoration effort, and strengthen governance over signatory participation. Commit highlights include: f9011617ee88851b3befe7ea63a39a778be78482 (Restore from nostr part 2), 478be7ae415448c2d044343d49678a83a2ecd917 (Restore from nostr dms and identity/company block), 638b488a6b9ec400c5a7bdc079134695ca6bd730 (Disable companies we are no longer signatory in).
3 Commits • 2 Features
Aug 1, 2025August 2025 — BitcreditProtocol/E-Bill: Implemented a Nostr-based restoration and recovery workflow for identities and companies, and introduced governance controls on signatories. The work delivered includes an identity processor and handler, DM-based restoration flows, and enhancements to minting, billing processing, and event notifications during recovery. Also added an 'active' flag on company records to disable inactive signatories, with updated data structures and UI/API filtering to ensure inactive entities are not visible to users. These changes improve disaster recovery readiness, reduce manual restoration effort, and strengthen governance over signatory participation. Commit highlights include: f9011617ee88851b3befe7ea63a39a778be78482 (Restore from nostr part 2), 478be7ae415448c2d044343d49678a83a2ecd917 (Restore from nostr dms and identity/company block), 638b488a6b9ec400c5a7bdc079134695ca6bd730 (Disable companies we are no longer signatory in).
August 2025
July 2025
4 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for BitcreditProtocol/E-Bill focusing on delivering a robust, event-driven notification and identity/company event handling system. Key refactorings improved modularity, testability, and future maintainability, while maintaining security and data integrity in identity/company workflows.
July 2025
4 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for BitcreditProtocol/E-Bill focusing on delivering a robust, event-driven notification and identity/company event handling system. Key refactorings improved modularity, testability, and future maintainability, while maintaining security and data integrity in identity/company workflows.
June 2025
2 Commits • 2 Features
Jun 1, 2025June 2025: Delivered two Nostr integration features for BitcreditProtocol/E-Bill, improving on-chain event processing and contact messaging reliability. Highlights include end-to-end Nostr chain invite handling and npub-based contact identification with reliable messaging delivery, backed by focused commits. Impact: smoother blockchain event workflows, more reliable Nostr communications, and readiness for next sprint.
2 Commits • 2 Features
Jun 1, 2025June 2025: Delivered two Nostr integration features for BitcreditProtocol/E-Bill, improving on-chain event processing and contact messaging reliability. Highlights include end-to-end Nostr chain invite handling and npub-based contact identification with reliable messaging delivery, backed by focused commits. Impact: smoother blockchain event workflows, more reliable Nostr communications, and readiness for next sprint.
June 2025
May 2025
3 Commits • 1 Features
May 1, 2025May 2025 monthly summary: Implemented core Nostr integration for the E-Bill system, enabling contact management, persistent storage of public bill chain events, and chain-aware processing to support secure, distributed billing workflows. Delivered a Nostr chain event store and a chain key resolver, and established subscriptions to public Nostr events from contacts to enable real-time updates and improved data freshness.
May 2025
3 Commits • 1 Features
May 1, 2025May 2025 monthly summary: Implemented core Nostr integration for the E-Bill system, enabling contact management, persistent storage of public bill chain events, and chain-aware processing to support secure, distributed billing workflows. Delivered a Nostr chain event store and a chain key resolver, and established subscriptions to public Nostr events from contacts to enable real-time updates and improved data freshness.
April 2025
2 Commits • 2 Features
Apr 1, 2025April 2025 — Delivered encrypted direct messaging via NIP04/NIP17 and added Node ID-based notification filtering in BitcreditProtocol/E-Bill. Hardened notification handling to avoid spamming users on handler errors and applied reliability fixes to improve messaging stability. These changes enhance privacy, user control, and overall platform reliability, delivering measurable business value through secure communications and targeted notifications.
2 Commits • 2 Features
Apr 1, 2025April 2025 — Delivered encrypted direct messaging via NIP04/NIP17 and added Node ID-based notification filtering in BitcreditProtocol/E-Bill. Hardened notification handling to avoid spamming users on handler errors and applied reliability fixes to improve messaging stability. These changes enhance privacy, user control, and overall platform reliability, delivering measurable business value through secure communications and targeted notifications.
April 2025
March 2025
4 Commits • 2 Features
Mar 1, 2025March 2025: Focused on establishing a scalable, event-driven foundation for E-Bill and tightening message reliability to support reliable bill processing at scale. Delivered two core feature areas and laid groundwork for future improvements. Key deliverables include the E-Bill Event System Architecture and Transport Layer, and Nostr Reliability Improvements with enhanced event handling. These changes enable resilient, low-latency bill workflows and improved data consistency across the ecosystem.
March 2025
4 Commits • 2 Features
Mar 1, 2025March 2025: Focused on establishing a scalable, event-driven foundation for E-Bill and tightening message reliability to support reliable bill processing at scale. Delivered two core feature areas and laid groundwork for future improvements. Key deliverables include the E-Bill Event System Architecture and Transport Layer, and Nostr Reliability Improvements with enhanced event handling. These changes enable resilient, low-latency bill workflows and improved data consistency across the ecosystem.
February 2025
2 Commits • 1 Features
Feb 1, 2025February 2025 — BitcreditProtocol/E-Bill: Delivered enhanced bill notifications and enriched light invoice data to boost billing visibility, accuracy, and downstream automation. Work focused on surfacing active bill state and including bill amounts in notification payloads, with clear commit-level traceability.
2 Commits • 1 Features
Feb 1, 2025February 2025 — BitcreditProtocol/E-Bill: Delivered enhanced bill notifications and enriched light invoice data to boost billing visibility, accuracy, and downstream automation. Work focused on surfacing active bill state and including bill amounts in notification payloads, with clear commit-level traceability.
February 2025
January 2025
6 Commits • 3 Features
Jan 1, 2025January 2025 — BitcreditProtocol/E-Bill: Delivered key features, security, and reliability improvements that directly impact user experience and data resilience. Highlights include a revamped bill action notification system with timeout handling and deduplication; seed-phrase based key backup (BIP39) with API and storage refactor; encrypted backups for the database with a dedicated identity backup API (SurrealDB); and a fix for now() to return the correct UTC timestamp, accompanied by tests.
January 2025
6 Commits • 3 Features
Jan 1, 2025January 2025 — BitcreditProtocol/E-Bill: Delivered key features, security, and reliability improvements that directly impact user experience and data resilience. Highlights include a revamped bill action notification system with timeout handling and deduplication; seed-phrase based key backup (BIP39) with API and storage refactor; encrypted backups for the database with a dedicated identity backup API (SurrealDB); and a fix for now() to return the correct UTC timestamp, accompanied by tests.
December 2024
3 Commits • 1 Features
Dec 1, 2024December 2024: Delivered unified key management (BcrKeys) and Nostr-based real-time notifications for E-Bill, enabling cross-stack key handling across Bitcoin, Nostr, and libp2p; stabilized development/test relay configuration and deployment workflow; and hardened key usage with single-generation guarantees. These changes improve security, real-time communication, and deployment reliability across the project.
3 Commits • 1 Features
Dec 1, 2024December 2024: Delivered unified key management (BcrKeys) and Nostr-based real-time notifications for E-Bill, enabling cross-stack key handling across Bitcoin, Nostr, and libp2p; stabilized development/test relay configuration and deployment workflow; and hardened key usage with single-generation guarantees. These changes improve security, real-time communication, and deployment reliability across the project.
December 2024
November 2024
4 Commits • 2 Features
Nov 1, 2024November 2024 focused on strengthening notification capabilities and modernizing contact storage for BitcreditProtocol/E-Bill, delivering a multi-transport notification system and SurrealDB-backed contacts storage. The work lays a scalable foundation for future channels and larger user communications while simplifying deployment and persistence with container-friendly configurations.
November 2024
4 Commits • 2 Features
Nov 1, 2024November 2024 focused on strengthening notification capabilities and modernizing contact storage for BitcreditProtocol/E-Bill, delivering a multi-transport notification system and SurrealDB-backed contacts storage. The work lays a scalable foundation for future channels and larger user communications while simplifying deployment and persistence with container-friendly configurations.
Activity
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Quality Metrics
Correctness87.2%
Maintainability82.0%
Architecture84.8%
Performance77.6%
AI Usage33.8%
Skills & Technologies
Programming Languages
DockerfileHTMLHTTPJSONJavaScriptMarkdownRustSQLTOMLTypeScript
Technical Skills
API DesignAPI DevelopmentAPI IntegrationAPI designAPI developmentAsynchronous ProgrammingBackend DevelopmentBitcoinBlockchainBlockchain IntegrationCode CleanupConfiguration ManagementCryptographyData PersistenceData Synchronization
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