
Keyan Maskoot developed core blockchain infrastructure for the Anastasia-Labs/midgard repository, focusing on secure transaction workflows, fraud-proof systems, and robust state management. Over 13 months, he engineered features such as checkpoint-based recovery, double-spend detection, and withdrawal validation, using TypeScript, Haskell, and the Aiken framework. His work included deep refactoring for maintainability, modular abstractions for smart contracts, and integration of PostgreSQL for scalable data management. By improving concurrency, error handling, and developer documentation, Keyan enabled reliable settlement, enhanced observability, and streamlined onboarding. The result was a maintainable, production-ready backend supporting complex Cardano-based transaction logic and fraud detection.

January 2026 focused on strengthening fraud-proof capabilities in Anastasia-Labs/midgard and improving developer experience. Key deliverables include comprehensive Fraud Proof System Enhancements with checkpointing and robust validation, significantly improving security, reliability, and resilience to edge cases and invalid inputs. The team also delivered structural refactors and abstractions to streamline fraud-proof contracts, with improved handling of non-existent inputs and segmented proofs to reduce complexity and compile-time issues. Documentation, diagrams, and CI improvements were completed, including updated fraud-proof docs, generation of PDF diagrams, and CI configuration hardening to boost documentation quality and CI reliability. Overall impact includes a higher security posture, fewer regressions, accelerated development cycles, and clearer engineering documentation.
January 2026 focused on strengthening fraud-proof capabilities in Anastasia-Labs/midgard and improving developer experience. Key deliverables include comprehensive Fraud Proof System Enhancements with checkpointing and robust validation, significantly improving security, reliability, and resilience to edge cases and invalid inputs. The team also delivered structural refactors and abstractions to streamline fraud-proof contracts, with improved handling of non-existent inputs and segmented proofs to reduce complexity and compile-time issues. Documentation, diagrams, and CI improvements were completed, including updated fraud-proof docs, generation of PDF diagrams, and CI configuration hardening to boost documentation quality and CI reliability. Overall impact includes a higher security posture, fewer regressions, accelerated development cycles, and clearer engineering documentation.
December 2025 monthly summary for Anastasia-Labs/midgard. Focused on delivering robust fraud-proof capabilities, significant refactors for maintainability, API/type-safety enhancements, and developer experience improvements. Key outcomes include end-to-end enhancements to the double-spend workflow, targeted codebase reorganizations, and improvements to validation and documentation that reduce risk and accelerate future iterations.
December 2025 monthly summary for Anastasia-Labs/midgard. Focused on delivering robust fraud-proof capabilities, significant refactors for maintainability, API/type-safety enhancements, and developer experience improvements. Key outcomes include end-to-end enhancements to the double-spend workflow, targeted codebase reorganizations, and improvements to validation and documentation that reduce risk and accelerate future iterations.
Monthly summary for 2025-11 focused on business value and technical achievements in Anastasia-Labs/midgard. Key feature delivered: refund handling and withdrawal validation improvements that enhance transaction compliance, correctness, and reliability, supported by a new refund/withdrawal diagram and updated specs. Major bugs fixed: compile errors resolved across modules, restoring stable builds and reducing integration risk. Documentation, specs, and dev environment updates: expanded technical specifications, diagrams, onboarding docs, and a minimal docker-compose setup to streamline development and onboarding. Overall impact: stronger transactional integrity, reduced risk in refunds and withdrawals, faster onboarding for new contributors, and a more maintainable codebase with clearer traceability. Technologies/skills demonstrated: refactoring for compliance, cross-module build stability, documentation and diagram orchestration, developer-environment tooling (docker-compose), and SDK/docs collaboration.
Monthly summary for 2025-11 focused on business value and technical achievements in Anastasia-Labs/midgard. Key feature delivered: refund handling and withdrawal validation improvements that enhance transaction compliance, correctness, and reliability, supported by a new refund/withdrawal diagram and updated specs. Major bugs fixed: compile errors resolved across modules, restoring stable builds and reducing integration risk. Documentation, specs, and dev environment updates: expanded technical specifications, diagrams, onboarding docs, and a minimal docker-compose setup to streamline development and onboarding. Overall impact: stronger transactional integrity, reduced risk in refunds and withdrawals, faster onboarding for new contributors, and a more maintainable codebase with clearer traceability. Technologies/skills demonstrated: refactoring for compliance, cross-module build stability, documentation and diagram orchestration, developer-environment tooling (docker-compose), and SDK/docs collaboration.
2025-10 Monthly Summary — Anastasia-Labs/midgard Overview: - Delivered targeted features and fixed critical issues across Midgard, enhancing stability, observability, and deployment efficiency. Key features delivered: - Midgard-node cleanup and dependency tightening: Cleaned up and streamlined dependencies, bumped versions of effect and related packages, and removed unused MPT variables/configs to reduce technical debt and improve build reliability. (Commit: 86e174365bd939e7bf0c956705a3488b64a19efc) - Enhanced diagnostics and logging for block processing: Improved debugging by including failure causes in error messages for block header commitment and clarified logs for genesis UTXO insertion, enabling faster triage. (Commits: 4c1f7e8d824a94e378dceb164c2cb66a361e7eb7; 4437728c23cf10759872bfc4ec44227f8a67c9a7) - Docker tempo-init image upgrade for improved operations: Updated tempo-init Docker image from grafana/tempo:latest to busybox:latest to optimize chown execution and reduce base image footprint. (Commit: b7a68c299f569799c56f2d9ba25da00abed03ace) Major bugs fixed: - Restore essential databases for ledger and mempool: Fixed bug where LevelDB instances for ledger and mempool were removed; ensured proper initialization and return in makeMpts. (Commit: 9421b2e6c45ad4ec55b23fcee26e74e1732b5233) Overall impact and accomplishments: - System stability: Prevented potential data loss by ensuring persistent ledger/mempool state and reliable initialization paths. - Observability: Enhanced diagnostics and logging reduce mean time to resolution for processing failures. - Operational efficiency: Reduced container footprint and improved startup times through image optimization. Technologies/skills demonstrated: - Dependency management and refactoring practices, robust observability instrumentation, container image optimization, and lifecycle handling for LevelDB-backed components.
2025-10 Monthly Summary — Anastasia-Labs/midgard Overview: - Delivered targeted features and fixed critical issues across Midgard, enhancing stability, observability, and deployment efficiency. Key features delivered: - Midgard-node cleanup and dependency tightening: Cleaned up and streamlined dependencies, bumped versions of effect and related packages, and removed unused MPT variables/configs to reduce technical debt and improve build reliability. (Commit: 86e174365bd939e7bf0c956705a3488b64a19efc) - Enhanced diagnostics and logging for block processing: Improved debugging by including failure causes in error messages for block header commitment and clarified logs for genesis UTXO insertion, enabling faster triage. (Commits: 4c1f7e8d824a94e378dceb164c2cb66a361e7eb7; 4437728c23cf10759872bfc4ec44227f8a67c9a7) - Docker tempo-init image upgrade for improved operations: Updated tempo-init Docker image from grafana/tempo:latest to busybox:latest to optimize chown execution and reduce base image footprint. (Commit: b7a68c299f569799c56f2d9ba25da00abed03ace) Major bugs fixed: - Restore essential databases for ledger and mempool: Fixed bug where LevelDB instances for ledger and mempool were removed; ensured proper initialization and return in makeMpts. (Commit: 9421b2e6c45ad4ec55b23fcee26e74e1732b5233) Overall impact and accomplishments: - System stability: Prevented potential data loss by ensuring persistent ledger/mempool state and reliable initialization paths. - Observability: Enhanced diagnostics and logging reduce mean time to resolution for processing failures. - Operational efficiency: Reduced container footprint and improved startup times through image optimization. Technologies/skills demonstrated: - Dependency management and refactoring practices, robust observability instrumentation, container image optimization, and lifecycle handling for LevelDB-backed components.
September 2025 (Month 2025-09) delivered a robust checkpoint-based state management upgrade and a sweeping codebase refactor across the Anastasia-Labs/midgard repository. The work focused on reliability, maintainability, and developer velocity, translating to tangible business value through improved recovery, reduced incident risk, and cleaner, extensible architecture.
September 2025 (Month 2025-09) delivered a robust checkpoint-based state management upgrade and a sweeping codebase refactor across the Anastasia-Labs/midgard repository. The work focused on reliability, maintainability, and developer velocity, translating to tangible business value through improved recovery, reduced incident risk, and cleaner, extensible architecture.
2025-08 monthly summary for Anastasia-Labs/midgard: Delivered core enhancements to the tx lifecycle and genesis/UTXO management, stabilized ledger interactions, and laid the groundwork for scalable transaction processing. Strengthened observability and code quality to support faster feature delivery and lower maintenance overhead. Business value includes more reliable mainnet operations, predictable genesis handling, and a clearer path for future optimizations.
2025-08 monthly summary for Anastasia-Labs/midgard: Delivered core enhancements to the tx lifecycle and genesis/UTXO management, stabilized ledger interactions, and laid the groundwork for scalable transaction processing. Strengthened observability and code quality to support faster feature delivery and lower maintenance overhead. Business value includes more reliable mainnet operations, predictable genesis handling, and a clearer path for future optimizations.
July 2025 performance summary for Anastasia-Labs/midgard was dominated by foundational reliability work, observable improvements, and ongoing data infra enhancements. Key features were delivered to strengthen transaction submission, state-queue visibility, and DB-backed data structures, while essential concurrency and logging fixes reduced risk under load. The work sets a scalable baseline for throughput, observability, and cross-module alignment as the project evolves.
July 2025 performance summary for Anastasia-Labs/midgard was dominated by foundational reliability work, observable improvements, and ongoing data infra enhancements. Key features were delivered to strengthen transaction submission, state-queue visibility, and DB-backed data structures, while essential concurrency and logging fixes reduced risk under load. The work sets a scalable baseline for throughput, observability, and cross-module alignment as the project evolves.
May 2025 performance summary for Anastasia-Labs/midgard focused on delivering core withdrawal and settlement capabilities, stabilizing the codebase, and advancing cross-layer readiness. Emphasis on business value, reliability, and maintainability with comprehensive feature delivery and documentation progress to enable upcoming milestones.
May 2025 performance summary for Anastasia-Labs/midgard focused on delivering core withdrawal and settlement capabilities, stabilizing the codebase, and advancing cross-layer readiness. Emphasis on business value, reliability, and maintainability with comprehensive feature delivery and documentation progress to enable upcoming milestones.
April 2025 (2025-04) delivered a major block of architecture and data-layer improvements for Anastasia-Labs/midgard, focusing on reliability, performance readiness, and maintainability to enable higher throughput and safer settlements. The month combined a comprehensive block commitment overhaul with settlement checkpointing, while modernizing the data stack and improving observability. Key outcomes include: (1) Block Commitment Architecture Improvements: moved block commitment into a worker, refactored the state queue semaphore, updated settlement operator hash usage, and restructured the deposit architecture to a more robust design. (2) Settlement Enhancements and Checkpointing: introduced a global pending block submission flag, enabled settlement_queue.get_datum access, and added a checkpoint capability to improve end-to-end visibility and fault tolerance. (3) Data Layer Modernization and Stability: implemented PostgresDB integration and extended the DB abstraction layer, migrating from pg to postgres, plus a suite of core fixes to improve build stability, token validation, and CBOR witness handling. (4) MPT and Ledger Observability: added EthereumJS MPT support in the worker and introduced ledger size metrics with a Grafana plot for data-driven capacity planning. (5) Quality, Refactors, and Operational Excellence: added semaphore synchronization logic, a withdrawal mint script, and targeted core component refactors to improve modularity and reuse, while continuing to suppress noisy warnings and remove legacy metrics for cleaner production logs.
April 2025 (2025-04) delivered a major block of architecture and data-layer improvements for Anastasia-Labs/midgard, focusing on reliability, performance readiness, and maintainability to enable higher throughput and safer settlements. The month combined a comprehensive block commitment overhaul with settlement checkpointing, while modernizing the data stack and improving observability. Key outcomes include: (1) Block Commitment Architecture Improvements: moved block commitment into a worker, refactored the state queue semaphore, updated settlement operator hash usage, and restructured the deposit architecture to a more robust design. (2) Settlement Enhancements and Checkpointing: introduced a global pending block submission flag, enabled settlement_queue.get_datum access, and added a checkpoint capability to improve end-to-end visibility and fault tolerance. (3) Data Layer Modernization and Stability: implemented PostgresDB integration and extended the DB abstraction layer, migrating from pg to postgres, plus a suite of core fixes to improve build stability, token validation, and CBOR witness handling. (4) MPT and Ledger Observability: added EthereumJS MPT support in the worker and introduced ledger size metrics with a Grafana plot for data-driven capacity planning. (5) Quality, Refactors, and Operational Excellence: added semaphore synchronization logic, a withdrawal mint script, and targeted core component refactors to improve modularity and reuse, while continuing to suppress noisy warnings and remove legacy metrics for cleaner production logs.
March 2025 performance and reliability sprint for Anastasia-Labs/midgard. Focused on enabling robust transaction flows, improving performance with worker-based paths, and strengthening reliability through targeted fixes and documentation. Key outcomes include end-to-end refund logic, a new Transfer to Reserve flow with proper phas checks, MPT-based tree computation and worker concurrency, and core plumbing (single UTXO indexer, worker-backed DB lookups) enabling scalable throughput. Ledger readiness progressed with store initialization and ledger state type integration, complemented by commit/merge HTTP endpoints, enhanced logging, and documentation updates. Together these efforts deliver business value through faster, safer transactions, clearer runtime insights, and improved maintainability.
March 2025 performance and reliability sprint for Anastasia-Labs/midgard. Focused on enabling robust transaction flows, improving performance with worker-based paths, and strengthening reliability through targeted fixes and documentation. Key outcomes include end-to-end refund logic, a new Transfer to Reserve flow with proper phas checks, MPT-based tree computation and worker concurrency, and core plumbing (single UTXO indexer, worker-backed DB lookups) enabling scalable throughput. Ledger readiness progressed with store initialization and ledger state type integration, complemented by commit/merge HTTP endpoints, enhanced logging, and documentation updates. Together these efforts deliver business value through faster, safer transactions, clearer runtime insights, and improved maintainability.
February 2025 focused on delivering foundational workflow features, stabilizing core subsystems, and improving developer productivity for Anastasia-Labs/midgard. Key work included initial drafts of critical settlement and revocation workflows, codebase refactors to improve maintainability, and targeted bug fixes and documentation improvements that collectively strengthen reliability and business readiness.
February 2025 focused on delivering foundational workflow features, stabilizing core subsystems, and improving developer productivity for Anastasia-Labs/midgard. Key work included initial drafts of critical settlement and revocation workflows, codebase refactors to improve maintainability, and targeted bug fixes and documentation improvements that collectively strengthen reliability and business readiness.
January 2025 performance snapshot for Anastasia-Labs/midgard. Delivered core settlement and node scaffolding, established API endpoints, and strengthened data processing reliability, positioning the project for ecosystem integration and faster feature velocity. Highlights include consolidating settlement contracts into a single contract, drafting settlement minting/spend scaffolding, enabling Midgard Node MVP with optional operator field, introducing time utilities and checkpoint mechanisms, and expanding developer experience with Express integration, SDK dependency, and updated docs.
January 2025 performance snapshot for Anastasia-Labs/midgard. Delivered core settlement and node scaffolding, established API endpoints, and strengthened data processing reliability, positioning the project for ecosystem integration and faster feature velocity. Highlights include consolidating settlement contracts into a single contract, drafting settlement minting/spend scaffolding, enabling Midgard Node MVP with optional operator field, introducing time utilities and checkpoint mechanisms, and expanding developer experience with Express integration, SDK dependency, and updated docs.
December 2024 monthly summary for Anastasia-Labs/midgard. Focus this month was stabilizing the core build and data workflow while laying groundwork for future ledger-state features, accompanied by targeted refactors to improve maintainability and developer velocity. Key fixes and structural improvements were implemented to support scalable progress tracking and reliable CI/CD pipelines, with deliberate compatibility safeguards to minimize disruption for downstream tooling and users.
December 2024 monthly summary for Anastasia-Labs/midgard. Focus this month was stabilizing the core build and data workflow while laying groundwork for future ledger-state features, accompanied by targeted refactors to improve maintainability and developer velocity. Key fixes and structural improvements were implemented to support scalable progress tracking and reliable CI/CD pipelines, with deliberate compatibility safeguards to minimize disruption for downstream tooling and users.
Overview of all repositories you've contributed to across your timeline