Our first field tested prototype of Crayonic Pen was solely focused on decentralised signing of electronic documents while fully complying with EU eIDAS regulation on electronic signatures. We refer to this use case as Qualified Electronic Signature on mobile devices. Based on the feedback we have received we are now building v2.0 which will add blockchain support. For more details see Crayonic Pen v2.0
To create immediate value for use cases where eIDAS electronic signature is required we have built an open source mobile application - Crayonic Paper which is capable of signing and verifying eSignatures on PDF documents without any additional supporting infrastructure. This serverless and offline solution is being used by companies in the financial vertical especially in Point-of-Sale and Point-of-Delivery use cases.