The architecture
How a sale becomes a fiscal receipt
Tax-Bridge sits between the systems you sell with and the tax authority's signing service. One normalized request in, one legally fiscalized document out.
Normalize once
Every connector maps its invoice into one canonical schema — tax-inclusive line items with tax labels, payments, buyer and cashier. The TaxCore-specific shaping lives in a single place in the Bridge, so connectors stay thin.
Authenticate per shop
Each shop's certificate (PFX) and PAC are decrypted in memory only at signing time and used for a mutual-TLS handshake with the V-SDC. Secrets are never logged and never leave the vault in the clear.
Fiscalize idempotently
A deterministic 32-hex request id makes the call safe to retry. The sandbox V-SDC fails ~half the time transiently; a quick in-process retry plus a durable queue means a sale is fiscalized exactly once — or not at all.
Return a compliant document
The SDC's response — journal, QR (GIF) and verification URL — is stored verbatim and rendered byte-for-byte. Print it on paper or deliver it electronically; scan the QR to verify it against the authority.