Check a Verifactu record chain
Check a Verifactu record chain — A Spanish billing system chains every invoice record to the previous one with a SHA-256 hash: delete or alter one in the middle and every later record stops adding up. That is the mechanism — what does not exist is an easy way to CHECK it on a file someone handed you. An accountant who receives an export from a client system has no way of knowing the chain is intact before the tax inspector arrives. Two checks kept apart on purpose: the chaining is certain, the hash depends on how the field order is read. Exact, nothing stored, and we are not a billing system. AIM PAPYR processes your document only for this operation: nothing is stored after the response, and the identifiers we detect (IDs, IBANs, phone numbers…) are replaced with placeholders before the text is processed.
How it works
- Upload your file — processed instantly, no sign-up.
- Adjust the “Check a Verifactu record chain” options, with live preview where it applies.
- Download the result. We keep no copy.
FAQ
Is Check a Verifactu record chain free on AIM PAPYR?
Yes. Every classic tool is free, ad-free and requires no account. Assistant features include a free daily allowance.
What happens to my document when I use Check a Verifactu record chain?
AIM PAPYR processes your document only for this operation: nothing is stored after the response, and the identifiers we detect (IDs, IBANs, phone numbers…) are replaced with placeholders before the text is processed.
Are there any limits?
Up to 5,000 pages per operation and whatever size your plan allows. For anything bigger, split it first and work in parts.