Read ss58 Balance Precompile

[UnArbosSix]

Description

This PR adds a precompile to read an ss58 balance from a smart contract

[vercel]

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Project	Deployment	Actions	Updated (UTC)
subtensor	Ready	Preview, Comment	Jul 15, 2026 3:33pm

[github-actions]

🛡️ AI Review — Skeptic (security review)

VERDICT: VULNERABLE

VERY HIGH scrutiny: 13-day-old account with no public repos, mitigated by repository write permission; no Gittensor association or author/committer mismatch. Branch targets main.

The balance lookup is bounded, charges for one database read, and exposes public chain state. No malicious behavior, dependency changes, or modifications to trusted review instructions were found.

Findings

Sev	File	Finding
HIGH	runtime/src/lib.rs:238	Runtime behavior changed without a spec-version bump	(off-diff)

Other findings

• [HIGH] Runtime behavior changed without a spec-version bump (runtime/src/lib.rs:238) — This PR adds and enables a runtime precompile while leaving spec_version at 431. Nodes may treat stale native code and the changed Wasm runtime as interchangeable, risking divergent execution. Increment spec_version.

Prior-comment reconciliation

• 9b64c225: not addressed — runtime/src/lib.rs still declares spec_version: 431; the PR adds no spec-version bump.

Conclusion

The implementation appears legitimate, but enabling a new runtime precompile without incrementing spec_version creates a native/Wasm consensus risk and must be fixed before merge.

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📜 Previous run (superseded)

Sev	File	Finding	Status
HIGH	runtime/src/lib.rs:238	Runtime behavior changed without a spec-version bump	➡️ Carried forward to current findings runtime/src/lib.rs still declares spec_version: 431; the PR adds no spec-version bump.

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# 🔍 AI Review — Auditor (domain review) has not yet run on this PR.

[github-actions]

🔄 AI review updated — Skeptic: VULNERABLE

[github-actions]

🔄 AI review updated — Skeptic: VULNERABLE

[github-actions]

🔄 AI review updated — Skeptic: VULNERABLE