A collection of documented (!) code for the checks in the areas: IBAN, SCOR, (Swiss) PostFinance account numbers, QRR/ESR reference and the content of a Swiss QR bill in general.
checksum
payments
invoice
sepa
iban
checksum-calculation
iso13616
swiss-qr-bill
scor
qr-rechnung
iso11649
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Updated
Nov 22, 2022 - Java