What the developer wrote
Authored by Mitchell Bagot
Include Core link in U256::inverse()
The docstring in Core outlines an algorithm from Core for computing
the inverse of a 256-bit integer, which is ultimately used to convert
Work to/from Target.
Introduce a permalink to the code in Core on Github.
What changed, and why it matters
This commit only adds a documentation link inside a code comment. It does not change any executable code, behavior, or security properties of the library.
No action required; this is a documentation-only change.
Security signals we found
No strong security signals were identified.
Evidence from the diff
The diff inserts a single GitHub permalink reference to Bitcoin Core’s chain.cpp into the docstring of U256::inverse() in bitcoin/src/pow.rs. No logic, types, or public APIs were modified. The function’s implementation and its callers (Work/Target conversions) remain unchanged.
Changed components
Inspect captured patch +2 / −0
diff --git a/bitcoin/src/pow.rs b/bitcoin/src/pow.rs
index 0abb2098..bfc74203 100644
--- a/bitcoin/src/pow.rs
+++ b/bitcoin/src/pow.rs
@@ -533,6 +533,8 @@ impl U256 {
/// Calculates 2^256 / (x + 1) where x is a 256 bit unsigned integer.
///
+ /// ref: <https://github.com/bitcoin/bitcoin/blob/5fe753b56f450b054c42227c5df8346c72447490/src/chain.cpp#L133>
+ ///
/// 2**256 / (x + 1) == ~x / (x + 1) + 1
///
/// (Equation shamelessly stolen from bitcoind)
Why this scored 15/100
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