hashing
2 posts — newest first.
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Merkle Trees: How to Compare Two Terabytes Over a Slow Link
Derive the hash tree from the problem it solves, then find it everywhere — git, image digests, Certificate Transparency, and why a tag is not an identity.
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Hash Tables: The Data Structure Behind Almost Everything
The hash table sits under your cache, index, dedup, and vector store metadata. How it turns a key into O(1) access — and what keeps it fast.