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Siva – Jack of All Trades, Master of Some

Ghost
sivasub.com· irregular· Published 5 months ago

A personal portfolio blog by a fintech product builder explaining payments infrastructure in depth, covering digital identity checks, tokenized settlement and the economics of card interchange. Readers get clear, concrete explanations of how money moves behind everyday transactions.

interchange feescard paymentstokenized settlementpayment settlementdigital identitypayment authorizationrtgsdelivery versus paymentaadhaareurope digital identity walletacquirercard networks
Platform
Ghost
Frequency
Irregular
Latest issue
Jun 8, 2026
Language
English
Written for
Product builders and curious readers interested in payments and fintech
Tone
conversational
Tracked since
Oct 23, 2026

Website: https://sivasub.com/