A system for blockchain interoperability comprising: a furnisher validator node of a furnisher distributed ledger technology network, hereafter furnisher DLT network, the furnisher validator node configured to: digitally sign a certification of token data, the token data being stored on a furnisher blockchain, the certification being signed based on a public key for the furnisher validator node; and a receiver validator node of a receiver distributed ledger technology network, hereafter receiver DLT network, the receiver validator node configured to: access a furnisher credential stored on a membership blockchain, wherein the furnisher credential has been digitally signed by multiple validators of the furnisher DLT network; identify, in the furnisher credential, the public key for the furnisher validator node; verify that the certification is digitally signed by the furnisher validator node based on the public key for the furnisher validator node; digitally sign a validation of the certification in response to the verification of the certification being signed by the furnisher validator node; and store the signed validation on a receiver blockchain; wherein the receiver validator node is further configured to: verify that the furnisher credential is valid, wherein to verify the furnisher credential is valid, the receiver validator node is further configured to: access, from the membership blockchain, a furnisher credential definition, identify furnisher credentials for a plurality of furnisher validators based on the furnisher credential definition, and determine the furnisher credential is digitally signed based on the identified furnisher credentials. a furnisher validator node of a furnisher distributed ledger technology network, hereafter furnisher DLT network, the furnisher validator node configured to: digitally sign a certification of token data, the token data being stored on a furnisher blockchain, the certification being signed based on a public key for the furnisher validator node; and a receiver validator node of a receiver distributed ledger technology network, hereafter receiver DLT network, the receiver validator node configured to: access a furnisher credential stored on a membership blockchain, wherein the furnisher credential has been digitally signed by multiple validators of the furnisher DLT network; identify, in the furnisher credential, the public key for the furnisher validator node; verify that the certification is digitally signed by the furnisher validator node based on the public key for the furnisher validator node; digitally sign a validation of the certification in response to the verification of the certification being signed by the furnisher validator node; and store the signed validation on a receiver blockchain; wherein the receiver validator node is further configured to: verify that the furnisher credential is valid, wherein to verify the furnisher credential is valid, the receiver validator node is further configured to: access, from the membership blockchain, a furnisher credential definition, identify furnisher credentials for a plurality of furnisher validators based on the furnisher credential definition, and determine the furnisher credential is digitally signed based on the identified furnisher credentials. access a furnisher credential stored on a membership blockchain, wherein the furnisher credential has been digitally signed by multiple validators of the furnisher DLT network; identify, in the furnisher credential, the public key for the furnisher validator node; verify that the certification is digitally signed by the furnisher validator node based on the public key for the furnisher validator node; digitally sign a validation of the certification in response to the verification of the certification being signed by the furnisher validator node; and store the signed validation on a receiver blockchain; wherein the receiver validator node is further configured to: verify that the furnisher credential is valid, wherein to verify the furnisher credential is valid, the receiver validator node is further configured to: access, from the membership blockchain, a furnisher credential definition, identify furnisher credentials for a plurality of furnisher validators based on the furnisher credential definition, and determine the furnisher credential is digitally signed based on the identified furnisher credentials. access, from the membership blockchain, a furnisher credential definition, identify furnisher credentials for a plurality of furnisher validators based on the furnisher credential definition, and determine the furnisher credential is digitally signed based on the identified furnisher credentials.