An example operation may include one or more of sending, by a node A, a signed transaction TrA to a node B to update a token TKNA on a ledger of a blockchain A, submitting, by the node A, the TrA signed by the node B to the blockchain A, receiving from the node B a signed transaction TrB to create a token TKNB on a ledger of a blockchain B, sending the TrB signed by the node A to the node B to be submitted to the blockchain B, and activating, by the node A, the TrA to update the TKNA by submission of a secret value (x) signed by a private key of the node A to the blockchain A and by submission of a secret value (x) to the blockchain B to activate TKNB.