Decentralized computer systems and methods are disclosed for using a debit network as an intermediary between distributed ledgers. One method includes: receiving, at a first blockchain network from a merchant, transaction information comprising a consumer identification, an issuer identification from a payment vehicle presented for a transaction, and a transaction amount in resources of a first type, wherein the merchant and/or its acquirer are participants of the first blockchain network but the consumer and/or issuer are not participants of the first blockchain network; sending the transaction information to a debit network; identifying, using the debit network, a second blockchain network having the consumer and/or the issuer as participants, using the received consumer identification or issuer identification; and if participants of the second blockchain network accept the transaction, generating a new immutable entry to the second blockchain network indicating a change in the resources of a second type.