DCENT_OS — Guarded Experimental Artifacts (beta20260709)

DCENT_OS is D-Central Technologies' GPL-3.0 open-source Bitcoin mining firmware for selected Bitmain Antminer ASIC miners. This directory contains signed experimental artifacts for the exact S9 Zynq/XIL and S19j Pro Zynq/XIL lanes. Package signing and offline update-path tests do not prove a generally validated first installation.

Guarded artifact status. The S9 route remains lab-gated pending a witnessed current-artifact install, boot, soak and recovery capstone. The S19j Pro package has guarded DCENT_OS-source self-update evidence; vendor-stock first installation remains an open evidence gap. These artifacts are not production-ready. Use only on spare hardware with a proven recovery route.

Downloads

File	Target	SHA-256
DCENTOS_XIL1_S9_beta20260709.tar	Antminer S9 (Zynq, BM1387) — A/B sysupgrade	`e0bd9e30c7277a86f0c601bb882f41a7dd311160e29d7aefc4e017d2454ab845`
DCENTOS_XIL3_S19jPro_beta20260709.tar	Antminer S19j Pro (Zynq / XIL, BM1362) — A/B sysupgrade	`e7afc67cd9f7c9cda0bcd329f61116ef352644c3ae707741e04e1e1e5e7b2a96`
DCENTOS_XIL1_S9_SD_beta20260709.img	Antminer S9 — bootable SD-card image (64 MB)	`1c61fde315ce6eadcef5df79690ed15558173c96216680970f8de3360081b266`
SHA256SUMS.txt / BETA_RELEASE_SHA256SUMS.txt	checksums	—

Verify

Each sysupgrade package embeds a signed manifest verified against the beta release public key 26985575eae77d56c490ceeb9054af012eab5ae59119cd20eaa70dd7e722df83. Confirm checksums with sha256sum -c SHA256SUMS.txt.

Install readiness

Do not treat the presence of a file as a general install instruction. Review the release evidence record, the exact model/control-board ledger, and the recovery guide before any persistent write.

S9 Zynq/XIL: signed sysupgrade and SD artifacts are downloadable; the current witnessed first-install, boot, soak and recovery capstone remains pending.
S19j Pro Zynq/XIL: the signed package has guarded self-update evidence only; a vendor-stock first-install route is not claimed.

Verify SHA256SUMS.txt and the signed manifest. Operators of production or revenue-critical hardware should use mature production firmware.