Invoice in fiat, accept crypto payments, and generate tamper-evident, verifiable receipts. OnchainInvoice produces cryptographically signed documentation—PDFs, canonical payloads, and proof files—that can be independently inspected. Built as documentation infrastructure between invoicing and on-chain settlement, without custody or post-hoc reconstruction.
Designed for individuals and small teams who accept crypto payments but still need clean, defensible fiat accounting.
https://www.onchaininvoice.com
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