TemporalHazard is licensed under the GNU General Public License, version 2 or later. Except as listed below, it is Copyright (C) 2026 John Ehrlinger. R/likelihood-multiphase.R, the function .hzr_mt_normal() This function reproduces, in R, the numbers that set.seed() and rnorm() give under R's default generators. Its seeding, zero-word substitution and normal inversion are derived from R's source, which is GPL (>= 2): src/main/RNG.c Copyright (C) 1997--2026 The R Core Team Copyright (C) 1995, 1996 Robert Gentleman and Ross Ihaka src/nmath/snorm.c Copyright (C) 2000-2025 The R Core Team Copyright (C) 1998 Ross Ihaka Its generator is the Mersenne Twister, which R's doc/COPYRIGHTS records as: Copyright (C) 1997, 1999 Makoto Matsumoto and Takuji Nishimura. Reference: Matsumoto M, Nishimura T (1998). Mersenne Twister: a 623-dimensionally equidistributed uniform pseudo-random number generator. ACM Transactions on Modeling and Computer Simulation, 8(1), 3-30. doi:10.1145/272991.272995 The authors' current distribution and its license terms are at http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html The text of the GPL is in the file COPYING in the source package, and in R's share/licenses directory, or at https://www.R-project.org/Licenses/.