BitGo/BitGoJS
Oct 2024 – Feb 2026
15 Months active
Languages Used
JavaScriptN/ATypeScriptDockerfileYAMLMarkdownenvJSON
Technical Skills
Backend DevelopmentBitcoinBitcoin ScriptBlockchainBuffer manipulationBuild Tools
David Kaplan
PROFILE
David Kaplan
David Kaplan engineered advanced wallet, transaction, and signing workflows in the BitGo/BitGoJS repository, focusing on Bitcoin and multi-network UTXO protocols. He delivered features such as BIP322 message signing and verification, PSBT-lite transaction formats, and CoreDAO staking support, using TypeScript and Node.js to ensure reliability and interoperability. His work included refactoring for modularity, enhancing test coverage, and optimizing cryptographic operations for security and performance. By addressing edge cases in transaction handling and improving API consistency, David enabled robust multi-party workflows and streamlined integration. The depth of his contributions strengthened transaction integrity, reduced maintenance risk, and improved developer productivity across the codebase.
Overall Statistics
Feature vs Bugs
84%Features
Repository Contributions
112Total
Bugs
10
Commits
112
Features
51
Lines of code
15,573
Activity Months15
Your Network
382 people
Work History
February 2026
3 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for BitGoJS development focusing on BIP322 signing workflow improvements, performance optimization, and practical usage examples. Delivered measurable memory and verification improvements, with reference implementations for ownership verification in BitGo multi-sig wallets.
3 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for BitGoJS development focusing on BIP322 signing workflow improvements, performance optimization, and practical usage examples. Delivered measurable memory and verification improvements, with reference implementations for ownership verification in BitGo multi-sig wallets.
February 2026
January 2026
8 Commits • 6 Features
Jan 1, 2026January 2026 (Month: 2026-01) focused on delivering core wallet capabilities, Lightning payments, custodial operations, and signing workflows while improving monitoring, configurability, and maintainability across BitGoJS. Key work includes Bolt11 Lightning invoice support with backward-compatible valueSat, custodial wallet consolidations and ZEC custody gating, PSBT-lite enabled updateWallet with configurability changes, wallet signing/public-types upgrades including bulk signing, and updates to ZCash explorer URLs plus greater feeRate input flexibility. These changes drive business value by enabling faster payments, more flexible custody and signing workflows, improved transaction tracking, and broader input compatibility for fees.
January 2026
8 Commits • 6 Features
Jan 1, 2026January 2026 (Month: 2026-01) focused on delivering core wallet capabilities, Lightning payments, custodial operations, and signing workflows while improving monitoring, configurability, and maintainability across BitGoJS. Key work includes Bolt11 Lightning invoice support with backward-compatible valueSat, custodial wallet consolidations and ZEC custody gating, PSBT-lite enabled updateWallet with configurability changes, wallet signing/public-types upgrades including bulk signing, and updates to ZCash explorer URLs plus greater feeRate input flexibility. These changes drive business value by enabling faster payments, more flexible custody and signing workflows, improved transaction tracking, and broader input compatibility for fees.
December 2025
1 Commits
Dec 1, 2025December 2025 monthly summary for BitGoJS focusing on strengthening PSBT verification and improving transaction integrity in PayGo flows. The team delivered a critical bug fix by tightening PSBT verification defaults, improved reliability of PayGo processes, and advanced code quality to support future PSBT robustness work.
1 Commits
Dec 1, 2025December 2025 monthly summary for BitGoJS focusing on strengthening PSBT verification and improving transaction integrity in PayGo flows. The team delivered a critical bug fix by tightening PSBT verification defaults, improved reliability of PayGo processes, and advanced code quality to support future PSBT robustness work.
December 2025
November 2025
2 Commits • 1 Features
Nov 1, 2025November 2025 (BitGoJS) focused on PSBT capabilities and reliability. Delivered a new PSBT helper API surface by exporting parsePsbtOutputs and verifyChangeAddress from the abstract-lightning module to enable cross-module reuse and faster feature development. Fixed a critical PSBT serialization bug by removing a duplicate consensus branch ID in the global map, improving data integrity and production stability. These changes reduce integration risk, enable faster feature delivery, and enhance end-user confidence in multi-party transaction workflows.
November 2025
2 Commits • 1 Features
Nov 1, 2025November 2025 (BitGoJS) focused on PSBT capabilities and reliability. Delivered a new PSBT helper API surface by exporting parsePsbtOutputs and verifyChangeAddress from the abstract-lightning module to enable cross-module reuse and faster feature development. Fixed a critical PSBT serialization bug by removing a duplicate consensus branch ID in the global map, improving data integrity and production stability. These changes reduce integration risk, enable faster feature delivery, and enhance end-user confidence in multi-party transaction workflows.
October 2025
5 Commits • 3 Features
Oct 1, 2025Concise monthly summary for BitGoJS — October 2025. Focused delivery across transaction formats, wallet recovery tooling, and repository hygiene to enhance reliability, security, and developer productivity. Key outcomes include PSBT-lite cross-format support in sdk-core, an interactive wallet passphrase recovery workflow for BTC v1 wallets, a PSBT creation fix honoring skipNonWitnessUtxo, and commitlint scope improvements to clarify commit history.
5 Commits • 3 Features
Oct 1, 2025Concise monthly summary for BitGoJS — October 2025. Focused delivery across transaction formats, wallet recovery tooling, and repository hygiene to enhance reliability, security, and developer productivity. Key outcomes include PSBT-lite cross-format support in sdk-core, an interactive wallet passphrase recovery workflow for BTC v1 wallets, a PSBT creation fix honoring skipNonWitnessUtxo, and commitlint scope improvements to clarify commit history.
October 2025
September 2025
2 Commits • 1 Features
Sep 1, 20252025-09 Monthly Summary focused on delivering robust BIP322 verification capabilities across BitGoJS UTXO-related modules, with refactoring to enable multi-network support and comprehensive tests.
September 2025
2 Commits • 1 Features
Sep 1, 20252025-09 Monthly Summary focused on delivering robust BIP322 verification capabilities across BitGoJS UTXO-related modules, with refactoring to enable multi-network support and comprehensive tests.
August 2025
28 Commits • 17 Features
Aug 1, 2025August 2025 — BitGoJS monthly summary: Delivered a major upgrade to BIP322 PSBT signing across the UTXO core stack and SDKs, focusing on reliability, interoperability, and testability. Key features include BIP322 PSBT signing core enhancements (buildToSignPsbt, transaction handling, PSBT proofs, and signing helpers); expanded PSBT tooling and compatibility; multi-input and Taproot support; and ongoing codebase modernization. A critical bug fix improved witnessUtxo handling in the signing workflow. Also completed test infrastructure improvements, test fixture refactors, ES module migrations, and public types bumps to support future ecosystems. Overall, these changes strengthen security and scalability of signing flows, enable more complex UTXO scenarios, and reduce maintenance burden for the team.
28 Commits • 17 Features
Aug 1, 2025August 2025 — BitGoJS monthly summary: Delivered a major upgrade to BIP322 PSBT signing across the UTXO core stack and SDKs, focusing on reliability, interoperability, and testability. Key features include BIP322 PSBT signing core enhancements (buildToSignPsbt, transaction handling, PSBT proofs, and signing helpers); expanded PSBT tooling and compatibility; multi-input and Taproot support; and ongoing codebase modernization. A critical bug fix improved witnessUtxo handling in the signing workflow. Also completed test infrastructure improvements, test fixture refactors, ES module migrations, and public types bumps to support future ecosystems. Overall, these changes strengthen security and scalability of signing flows, enable more complex UTXO scenarios, and reduce maintenance burden for the team.
August 2025
July 2025
9 Commits • 3 Features
Jul 1, 2025Month: 2025-07 — Key delivery in BitGoJS: (1) BIP322 support for Bitcoin message signing and verification with a new tagged-hash function and to_spend builder; (2) signing robustness enhancements including PSBT cache handling fixes for non-SegWit, removal of unsafe non-SegWit workaround, and deprecation of allowNonSegwitSigningWithoutPrevTx; (3) improvements to testing utilities and fixtures for utxo-lib/utxo-bin with P2PKH mocks and updated fixtures to reflect current signing formats; (4) dependency updates to newer bitcoinjs-lib fork and addition of fast-sha256 for hashing performance. These changes collectively improve security, reliability, and time-to-delivery for signing workflows, while aligning tests with real-world signing formats and modern dependencies.
July 2025
9 Commits • 3 Features
Jul 1, 2025Month: 2025-07 — Key delivery in BitGoJS: (1) BIP322 support for Bitcoin message signing and verification with a new tagged-hash function and to_spend builder; (2) signing robustness enhancements including PSBT cache handling fixes for non-SegWit, removal of unsafe non-SegWit workaround, and deprecation of allowNonSegwitSigningWithoutPrevTx; (3) improvements to testing utilities and fixtures for utxo-lib/utxo-bin with P2PKH mocks and updated fixtures to reflect current signing formats; (4) dependency updates to newer bitcoinjs-lib fork and addition of fast-sha256 for hashing performance. These changes collectively improve security, reliability, and time-to-delivery for signing workflows, while aligning tests with real-world signing formats and modern dependencies.
June 2025
6 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for BitGoJS: Key features delivered include middleware and TAT shared secret management with public-key support and production key updates, and the BIP32 derivation index utility for deterministic hardened key derivation. A critical bug fix corrected the hardened derivation range to 2^31 - 1. These changes improve security, reliability, and production readiness for enterprise deployments.
6 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for BitGoJS: Key features delivered include middleware and TAT shared secret management with public-key support and production key updates, and the BIP32 derivation index utility for deterministic hardened key derivation. A critical bug fix corrected the hardened derivation range to 2^31 - 1. These changes improve security, reliability, and production readiness for enterprise deployments.
June 2025
April 2025
2 Commits • 2 Features
Apr 1, 2025April 2025 monthly summary for BitGoJS: Implemented Unconfirmed Transactions Support in the Transaction Codec to allow processing of unconfirmed transactions by making block hash and position optional, addressing Lightning Network workflows that may not yet be included in a block. Also documented RBF as a transaction acceleration option, expanding available methods for speeding up confirmations alongside CPFP. These changes improve interoperability, reduce latency for off-chain scenarios, and broaden transaction acceleration options.
April 2025
2 Commits • 2 Features
Apr 1, 2025April 2025 monthly summary for BitGoJS: Implemented Unconfirmed Transactions Support in the Transaction Codec to allow processing of unconfirmed transactions by making block hash and position optional, addressing Lightning Network workflows that may not yet be included in a block. Also documented RBF as a transaction acceleration option, expanding available methods for speeding up confirmations alongside CPFP. These changes improve interoperability, reduce latency for off-chain scenarios, and broaden transaction acceleration options.
March 2025
4 Commits • 2 Features
Mar 1, 2025March 2025: Delivered security and API-quality improvements in BitGoJS, focusing on signer security, API consistency, and correct transaction encoding. The changes reduce risk, streamline client integrations, and improve maintainability across the repository.
4 Commits • 2 Features
Mar 1, 2025March 2025: Delivered security and API-quality improvements in BitGoJS, focusing on signer security, API consistency, and correct transaction encoding. The changes reduce risk, streamline client integrations, and improve maintainability across the repository.
March 2025
February 2025
9 Commits • 5 Features
Feb 1, 2025February 2025: Implemented Lightning wallet API improvements and interface enhancements in BitGoJS, delivering more robust initialization, clearer API paths, better input validation and error feedback, encoding compatibility for LND passphrases, and expanded wallet interface with watch-only and coin-specific configurations; laid groundwork for signer caveats and documented signer configuration.
February 2025
9 Commits • 5 Features
Feb 1, 2025February 2025: Implemented Lightning wallet API improvements and interface enhancements in BitGoJS, delivering more robust initialization, clearer API paths, better input validation and error feedback, encoding compatibility for LND passphrases, and expanded wallet interface with watch-only and coin-specific configurations; laid groundwork for signer caveats and documented signer configuration.
December 2024
4 Commits • 3 Features
Dec 1, 2024December 2024 – BitGoJS: Network coverage and stability improvements. Delivered CoreDAO Devnet support, TBTC4 network support, and maintenance enhancements to dependencies and testnet explorer configuration. These changes broaden network interoperability, improve testnet reliability, and reduce maintenance risk, enabling faster development cycles and safer production deployments.
4 Commits • 3 Features
Dec 1, 2024December 2024 – BitGoJS: Network coverage and stability improvements. Delivered CoreDAO Devnet support, TBTC4 network support, and maintenance enhancements to dependencies and testnet explorer configuration. These changes broaden network interoperability, improve testnet reliability, and reduce maintenance risk, enabling faster development cycles and safer production deployments.
December 2024
November 2024
17 Commits • 3 Features
Nov 1, 2024Monthly summary for 2024-11 focusing on delivering key features and stability improvements in BitGoJS, with notable work on CoreDAO staking modernization, OP_RETURN support, enhanced recipient validation, and ongoing maintenance. Emphasized business value by enabling robust staking workflows, flexible transaction scripting, and improved input validation, while keeping dependencies and tests up to date.
November 2024
17 Commits • 3 Features
Nov 1, 2024Monthly summary for 2024-11 focusing on delivering key features and stability improvements in BitGoJS, with notable work on CoreDAO staking modernization, OP_RETURN support, enhanced recipient validation, and ongoing maintenance. Emphasized business value by enabling robust staking workflows, flexible transaction scripting, and improved input validation, while keeping dependencies and tests up to date.
October 2024
12 Commits • 2 Features
Oct 1, 20242024-10 monthly summary for BitGoJS focusing on delivering CoreDAO UTXO capabilities, stabilizing the OP_RETURN flow, and improving maintainability. This cycle advances business value by enabling CoreDAO staking workflows, improving cross-project interoperability, and priming the repo for wasm-miniscript features.
12 Commits • 2 Features
Oct 1, 20242024-10 monthly summary for BitGoJS focusing on delivering CoreDAO UTXO capabilities, stabilizing the OP_RETURN flow, and improving maintainability. This cycle advances business value by enabling CoreDAO staking workflows, improving cross-project interoperability, and priming the repo for wasm-miniscript features.
October 2024
Activity
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Quality Metrics
Correctness95.0%
Maintainability93.0%
Architecture91.2%
Performance89.2%
AI Usage36.2%
Skills & Technologies
Programming Languages
DockerfileJSONJavaScriptMarkdownN/ATypeScriptYAMLenv
Technical Skills
API DesignAPI DevelopmentAPI IntegrationAPI RefactoringAPI developmentAPI integrationBIP32BIP322Backend DevelopmentBitGo SDKBitcoinBitcoin CoreBitcoin ScriptBitcoin protocolBlockchain
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline