Archive scope: this engineering log records the project state on July 2, 2026. It is preserved to show how the work and evidence evolved; it is not a current install guide, compatibility promise, or release-status page.
What the closed-beta milestone actually established
The July milestone focused on proving that a from-scratch GPL-3.0 Antminer control stack could communicate with real S9 hardware and produce accepted pool shares in a controlled bench setting. That is meaningful mining evidence, but it does not establish a witnessed first install from vendor stock, a long soak, a recovery capstone, or production support.
The work also clarified an important open-source boundary. The daemon, dashboard, Buildroot integration, hardware abstractions and supporting code are published under GPL-3.0. Complete Antminer images still require documented vendor boot inputs that D-Central cannot redistribute. Those inputs are sourced from the operator’s own hardware; they are not silently relabeled as open code.
What changed after this log
Guarded signed artifacts were published for two exact hardware lanes: Antminer S9 with a Zynq/XIL control board, and Antminer S19j Pro with a Zynq/XIL control board. Downloadable does not mean supported. Their current install-readiness gates remain incomplete, and neither artifact is production-ready.
- S9 XIL: accepted-share bench evidence exists; the current-artifact witnessed install, boot, soak and recovery capstone remains pending.
- S19j Pro XIL: accepted-share mining evidence exists; a vendor-stock first-install path remains unproven.
- Other boards and models: no public artifact. Source capability, an older bench run, or a family name does not confer compatibility.
Why keep an old engineering log?
Authority should come from a traceable record, including the gap between a successful experiment and a supportable release. Keeping the dated log makes that progression auditable. The current pages below are the source of truth whenever this archive and a newer record differ.
- Current exact-model and control-board status
- Artifact and release receipt
- Security assurance ledger
- Independent reviewer and hardware-tester kit
- GPL-3.0 source repository
Reviewed: August 8, 2026. This archive will not be used to imply a current release state.
