Build on S4 Ledger — add immutable verification to your defense contracts
Primes and sub-tier contractors who want to differentiate proposals with immutable CDRL delivery proof, supply chain provenance, and quality record integrity.
IT and logistics system integrators building the next generation of defense logistics platforms. Add S4 Ledger's verification layer to your offerings via SDK or REST API.
Program offices, acquisition commands, and fleet maintenance activities exploring blockchain-based verification for audit readiness and data integrity.
Open-source Python library with pip install. Hash, anchor, verify, and query records in a few lines of code. Full documentation and examples included.
pip install s4-ledger
Language-agnostic HTTP API. Integrate from Java, C#, JavaScript, or any language that can make HTTP calls. JSON request/response format with full OpenAPI documentation.
POST /api/v1/anchor
We're in active discussions with defense contractors, system integrators, and government program offices. Partner logos and case studies will appear here as agreements are formalized.
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