Day 24 standalone attachment verification
Date: 2026-09-20
Archive: os-day-24.zip
SHA-256: fa86c15e1ea6721ea9f7d01550dcc1a8ae731937b60c26e68d916474d59a71c6

The archive was extracted into /tmp/tmp.Cm6lBhOwpP, which did not contain a
pre-existing build directory. The following targets rebuilt and exited 0:

build
check-pipe
check-shell
check-fd
check-fat
check-block
check-process
check-syscall
check-elf
check-memory
check-runtime-limit
check-keyboard

Rebuilt hashes:
kernel.bin       13d578c4e459bacfb8cad29d0634ba5cb25b8ed520b849cea719cf1180e903cf
kernel-shell.bin c64704e5b77db1428a657ed23762e02bb77a25a5ecf61e6dbf6e855e2464ceb9
mbr-shell.img    8d12036762b5937b9a7db28bb85efe9fe7c9d8e7b724e937758b1a315ec58b35
day23-user.elf   b44b54cef5743aaa2c8423492cc5d15e96f567802256cbcd25186a7b493bc8b9

All four hashes match the source-tree build used for the article evidence.
The archive contains no build/ directory. This receipt was created after the
archive was frozen and is therefore intentionally not embedded in that archive.
