International Business Machines Corporation

Sean K Dunne

Liam S Harpur

Peter M McGrath

Martin A Flint

Asima Silva

Nitin Gaur

Hernan A Cunico

Petr Novotny

Qi Zhang

Lei Yu

Suman Kumar Kalia

David Adiel Spriet

Stephen Michael Hanson

Matthew Colin Lovett

An example operation may include one or more of receiving, via a first blockchain peer, a request to verify an identity of a user, performing, via the first blockchain peer, an identity validation of the user via a know your customer (KYC) service provider of a blockchain network, determining whether a digital identity of the user has been previously stored by another blockchain peer on a blockchain of the blockchain network, in response to a determination that the digital identity of the user has not been stored on the blockchain, creating a non-fungible token (NFT) that identifies the user, and appending information about the identity validation of the user to a structure of the NFT and storing the NFT in a block of the blockchain.

Token-based identity validation via blockchain

A transaction is identified in a transaction processing system. An identifier value is generated for the transaction based on a concatenation of a unique sequence value and an identifier offset value. The transaction is processed by using the identifier value as a database primary key in a database of the transaction processing system.

Database identifier generation in transaction processing systems

An example operation may include one or more of identifying one or more attributes of a blockchain, determining the blockchain should be closed based on the one or more attributes, closing the blockchain, creating a new blockchain, identifying one or more assets from the blockchain, and creating a carry-over transaction based on the one or more assets of the blockchain.

Blockchain lifecycle management

One or more processors initiate generation of an identifier based on the definitions of both a primary range and a secondary range. One or more processors obtain a unique sequence value from a unique sequence range of known maximum number of values. One or more processors determine an offset value based on, at least in part, the primary range and the secondary range. One or more processors add the offset value to the unique sequence value to generate an identifier value. Processing a transaction using the identifier value as a database primary key in a database of a transaction processing system.

Optimization of event aggregation in an event-driven system is provided. An event queue is queried for a current event. A workload affinity coefficient that describes the current event, at least in part, is read. A database is searched for one or more matching workload affinity coefficients. The current event and one or more events that are respectively associated with one or more matching workload affinity coefficients are aggregated, thereby generating an aggregated event.

Optimizing event aggregation in an event-driven system

One or more processors initiate generation of an identifier based on the definitions of both a primary range and a secondary range. One or more processors obtain a unique sequence value from a unique sequence range of known maximum number of values. One or more processors calculate an offset value based on, at least in part, the primary range and the secondary range. One or more processors add the offset value to the unique sequence value to generate an identifier value.

Within the scope of existing XML Schema specifications, an approach is provided to embed simple types within a complex type so an XML stream can have instances of the embedded simple types, even without the presence of XML elements. Because the approach is within the scope of existing XML Schema specifications, the approach is transparent to known XML parsers. With the approach, an XML schema will have a complex type with a mixed flag set to true and an element set to be a dummy element. The dummy element has a simple type and one of (i) a name of the dummy element and (ii) a name of the simple type is one of a predetermined set of names. This XML schema is for use with a parser which, on parsing the schema, will interpret the dummy element as one of an embedded simple type and an inherited simple type.

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Dublin, Ireland

Sean K Dunne