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enhance comment describing how a pow is hashed (#3623)

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Integrate feedback from Tromp

Some more feedback from Tromp

readability improvement
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Blade Doyle 2021-03-31 11:43:04 -07:00 committed by GitHub
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1 changed files with 5 additions and 2 deletions
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7
core/src/pow/types.rs
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@ -318,8 +318,11 @@ impl ProofOfWork {
/// ///
/// The hash of the `Proof` is the hash of its packed nonces when serializing /// The hash of the `Proof` is the hash of its packed nonces when serializing
/// them at their exact bit size. The resulting bit sequence is padded to be /// them at their exact bit size. The resulting bit sequence is padded to be
/// byte-aligned. /// byte-aligned. We form a PROOFSIZE*edge_bits integer by packing the PROOFSIZE edge
/// /// indices together, with edge index i occupying bits i * edge_bits through
/// (i+1) * edge_bits - 1, padding it with up to 7 0-bits to a multiple of 8 bits,
/// writing as a little endian byte array, and hashing with blake2b using 256 bit digest.
#[derive(Clone, PartialOrd, PartialEq, Serialize)] #[derive(Clone, PartialOrd, PartialEq, Serialize)]
pub struct Proof { pub struct Proof {
/// Power of 2 used for the size of the cuckoo graph /// Power of 2 used for the size of the cuckoo graph