https://www.mathworks.com/help/matlab/ref/blkdiag.html
This MATLAB function returns the block diagonal matrix created by aligning the input matrices A1,...,AN along the diagonal of B.
block diagonal matrixmatlab
https://www.nist.gov/patents/diagonal-node-data-block-matrix-adding-hash-linked-records-and-deleting-arbitrary-records
Existing blockchains and Distributed Ledger Technology (DLT) do not allow for changes or deletions of information, which can prevent their use in...
data blockdiagonalnodematrixadding