International Business Machines Corporation

Mari M Wade

Krishna Chaitanya Ratakonda

Yedendra Shrinivasan

Atallah Hezbor

Teja Chiranjeevi Tummalapalli

Tyler S Lacock

Alfredo F Da Silva

Loretta A Hicks

An example operation may include one or more of receiving, by a document processor node, a document comprising a document identifier (ID) and a document type, generating, by the document processor node, at least one hashed attribute for sharing of the document based on the document ID and the document type, acquiring, by the document processor node, a list of documents and corresponding document owners to be linked to the document based on the at least one hashed attribute, and creating a plurality of linked documents based on the list of the documents.

Privacy-preserving document sharing

An example operation may include one or more of sending, by a user node, a document request comprising a document identifier (ID) to a document processor node connected over a blockchain, receiving, by the user node, a one-time pass-code from the document processor node based on the document ID, linking to the document using the one-time pass-code, and retrieving the document from a document owner node.

The invention provides a method, system, and program product for modifying a computer-executed process. In one embodiment, the invention includes creating an ad hoc task for inclusion in an existing process, accessing the existing process, and adding the ad hoc task to the existing process.

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Cary, NC, United States of America

Mari M Wade