May 2026 monthly performance overview for the stampchain-io BTCStampsExplorer team. Focused on delivering business-critical data capabilities, stabilizing wallet integrations, and improving developer velocity through CI/CD hygiene and infrastructure readiness. The month centered on the Stamp Market Data API enhancement, targeted bug fixes in wallet signing, and UI/tooling improvements for stamping workflows, underpinned by preparations for MySQL 8.4 and caching optimizations to support scale.

In April 2026, the BTCStampsExplorer backend addressed a critical API edge case and strengthened testing to improve reliability and business value. The team enabled zero-based stamp identifiers by updating the isStampNumber utility and corresponding API validation, aligning behavior with documentation and expected canonical lookups. Unit tests were added to cover stamp 0 in both isStampNumber and getIdentifierType to prevent regressions (closing #1097). This work improves data accuracy and search reliability for stamp lookups, and reduces user friction when querying zero identifiers. The changes are anchored by the commit that fixes the API to accept stamp 0 (#1101) and include related dev/main sync and MySQL 8.4 readiness as part of ongoing stability enhancements.