Patent attributes
An example controller, comprising a processing resource and a memory resource having instructions stored thereon that when executed by the processing resource cause the processing resource to create a meta transaction including information about a payment from an Internet of Things (IoT) device, receive information from the IoT device about the payment via an output transaction, an input transaction, and an unspent transaction, generate a transaction bundle including the output transaction, the input transaction, the un-spent transaction, and the meta transaction; receive a signature from the IoT device corresponding to the transaction bundle; and verify the signature from the IoT device.