maybe people *should* stop calling it a currency. its really a distributed accounting ledger/system. no?
So is (at least 90% of) our fiat currency. Its less distributed, but good enough to fit your definition
cur·ren·cy (kûrn-s, kr-)
n. pl. cur·ren·cies
1. Money in any form when in actual use as a medium of exchange, especially circulating paper money.
2. Transmission from person to person as a medium of exchange; circulation:
Sounds like bitcoin to me. Perhaps more so than fiat currency since most of those transaction dont happen from person to person, but through what you call a "distributed accounting ledger" at the bank.