Accept the fact you couldn't fix the issue and handle the questions and simply blame SIGT for the mistake on your side. Their DB is "tested with up to one billion 100-byte entries, i.e., ~100GB". Read it for yourself
https://github.com/signatumd/source/blob/master/src/leveldb/NEWS. And FYI, Bitcoin and Litecoin uses the same DB. What reason are you going to come up with now?
https://bitcointalk.org/index.php?topic=2030529.msg21956220#msg21956220HOLY SHIT!
looking at the few wallet addresses posted here, looks like they did use SIGT wallet for internal transactions as well!
Of course it will not work, no other coin will work either... I am guessing they had the most number of transactions in SIGT.
What happens on a decent exchange?
Exchange gives you an address "deposit address" and go track it on coins explorer.
- deposit coins to "deposit address"
- once they are confirmed, they are immediately moved to "exchange address"
- the amount you deposit, own, sold and bought all are recorded in an internal DB, Most exchanges use redis for good reason, a few uses mysql, oracle and postgres
- blockchain is never used after that point unless you request a withdrawal
What were they thinking when they used wallets to hold real coins... I have a feeling most of their currencies will fail to import if their transactions/deposit/withdrawal counts increase.
Holy Shit Indeed ! In 20y as software engineer I rarely saw such incompetence.