Abstract: A system for protecting access to digital documents may include a blockchain network and a stamp generation node. The stamp generation node may receive a digital document and access parameters from a first user node. A unique identifier for the document may be generated and recorded on the blockchain with the access parameters. A QR code encoding a URL for accessing the document may be generated and embedded in the document. A shortened URL corresponding to the encoded URL may be generated and transmitted to a second user node. When accessed, the shortened URL may cause the stamp generation node to verify the access parameters on the blockchain and grant or deny access to the document based on the verification.

Abstract: A digital document protection system is disclosed. The system includes a processor of a stamp generation node connected to at least first user node and to a second user node over a blockchain network; a memory on which are stored machine-readable instructions that when executed by the processor, cause the processor to: receive a digital document from the first user node designated to the second user node; execute a smart contract to: generate a URL referencing a QR code and a unique tiny URL represented by the QR code, embed the QR code onto the document, wherein the document is accessible at the URL, and provide the tiny URL to the second node.

Abstract: A digital document protection system is disclosed. The system includes a processor of a stamp generation node connected to at least first user node and to a second user node over a blockchain network; a memory on which are stored machine-readable instructions that when executed by the processor, cause the processor to: receive a digital document from the first user node designated to the second user node; execute a smart contract to: generate a URL referencing a QR code and a unique tiny URL represented by the QR code, embed the QR code onto the document, wherein the document is accessible at the URL, and provide the tiny URL to the second node.