UNTESTED - NOT VALIDATED FOR PRODUCTION OR FLEET ROLLOUT - Blackcoin Core v30.1.1 Beta 2 (Linux only)

UNTESTED - NOT VALIDATED FOR PRODUCTION OR FLEET ROLLOUT

This is the Linux-only first stage of the Blackcoin Core v30.1.1 Beta 2 replacement. It is being published now so Linux testers do not have to wait for an unrelated Windows packaging-gate repair.

Included platforms:

• Linux x86_64
• Linux ARM64

Not included in this release:

• Windows: both compilers completed, but a defective post-build source-identity check rejected the artifacts. A targeted Windows supplemental prerelease will follow after that check is repaired.
• macOS: both cross-builds completed, but native validation was skipped when the aggregate build job inherited the Windows failure. A supplemental prerelease will follow after native validation of the retained artifacts.

Source and build evidence:

• Exact source commit: a4c0d70ca13bfe8db14827b44ce47e16e8c03e25
• Build workflow: https://github.com/Blackcoin-Dev/Blackcoin/actions/runs/29522475194
• Each Linux architecture was produced by primary and verifier builders; corresponding artifacts are byte-for-byte identical.
• Both builders executed blackcoind -version directly (ARM64 through QEMU) and reported the exact full source commit.

Important limitations:

• This Beta 2 route intentionally skipped the long-running safety, replay, sanitizer, fuzz, and interoperability gates.
• These binaries are unsigned and are not production-qualified.
• Do not deploy across a production fleet. Back up wallets and use a controlled canary data directory.
• Beta 1 was withdrawn. Do not use Beta 1 for historical replay or reindex testing.
• Windows and macOS downloads are not part of this staged release; do not obtain similarly named binaries from third parties.

Verify SHA256SUMS-UNSIGNED.txt and the exact-SHA manifest before use. The latest production release remains v30.1.0.