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DCENT_OS releases and verification

DCENT_OS decision guide

Current release: beta20260709

Three verified files cover only the exact S9 Xilinx and S19j Pro Xilinx lanes. A file receipt does not authorize a flash.

Risk: Experimental firmware can brick hardware, cause mining downtime, and may affect warranty coverage. Confirm the exact board and recovery path before any write.

Review model and board before downloading

Open the full technical reference

DCENT_OS releases are documented as immutable evidence records: exact hardware lane, artifact filename, byte size, SHA-256, signing key, install readiness, known limitations and review date. This page carries the artifact table inline so you can verify a download without leaving it.

Current release — beta20260709 (guarded experimental)

Signed experimental artifacts for the Antminer S9 (Zynq/XIL1) and S19j Pro (Zynq/XIL3) lanes. Guarded-artifact status: the S9 route remains lab-gated pending a witnessed current-artifact install/boot/soak/recovery capstone; the S19j Pro package has guarded DCENT_OS-source self-update evidence only — vendor-stock first installation is an open evidence gap. Not production-ready. Use only on spare hardware with a proven recovery route.

beta20260709 artifacts — d-central.tech/downloads/dcent-os/beta-20260709/
FileTargetSize (bytes)SHA-256
DCENTOS_XIL1_S9_beta20260709.tar — receipt only; no operator download CTA Antminer S9 (Zynq, BM1387) — A/B sysupgrade 23,009,280 e0bd9e30c7277a86f0c601bb882f41a7dd311160e29d7aefc4e017d2454ab845
DCENTOS_XIL1_S9_SD_beta20260709.img Antminer S9 — bootable SD-card image (64 MB, no NAND write) 67,108,864 1c61fde315ce6eadcef5df79690ed15558173c96216680970f8de3360081b266
DCENTOS_XIL3_S19jPro_beta20260709.tar Antminer S19j Pro (Zynq/XIL, BM1362) — A/B sysupgrade 26,511,360 e7afc67cd9f7c9cda0bcd329f61116ef352644c3ae707741e04e1e1e5e7b2a96

Verify before you flash

curl -O https://d-central.tech/downloads/dcent-os/beta-20260709/SHA256SUMS.txt
sha256sum -c SHA256SUMS.txt        # each downloaded file must report: OK

Each sysupgrade package additionally embeds a signed manifest verified against the beta release public key 26985575eae77d56c490ceeb9054af012eab5ae59119cd20eaa70dd7e722df83 (published on the artifact index). Step-by-step walkthrough: firmware verification guide.

Provenance notes

  • The two .tar sysupgrade artifacts are also published as GitHub release assets on the DCENT_OS releases page; the S9 SD image is published on this download host.
  • No detached SHA256SUMS.txt.sig/.asc exists on the host — the signing story is the embedded per-package manifest plus the published public key, not a detached GPG signature. We say that plainly rather than imply otherwise.
  • Presence of a file is not a general install instruction — install readiness is path-specific. Read the release evidence record and the per-model ledger before any persistent write.

Published release records

  • beta20260709 — guarded experimental artifacts for S9 Zynq/XIL and S19j Pro Zynq/XIL; not production-ready. Full lane-by-lane evidence, limitations and review history on the record page.

Where to go from a download

Artifact digests transcribed from downloads/dcent-os/beta-20260709/SHA256SUMS.txt; byte sizes verified against the download host's HTTP Content-Length; signing key and guarded-artifact language from the artifact index page (all fetched 2026-08-13). The artifact directory itself is noindex — this page is the indexable record.

Companion tool — DCENT_Toolbox: Install a release on an S9 with DCENT_Toolbox.

Read the dated identity and status ledger