2 commits

Author	SHA1	Message	Date
weiihann	2db24e85a3	nomt/core: redesign for EIP-7864 compatibility (Phase A) ... Replace Keccak256+MSB tagging with SHA256. Remove leaf nodes entirely, replacing them with opaque stem hashes. Simplify NodeKind to just Terminator and Internal. Add HashStem (8-level binary SHA256 tree matching bintrie StemNode.Hash). Reduce max trie depth from 256 to 248 (31-byte stem path). Replace BuildTrie/LeafOp with BuildInternalTree/StemKeyValue. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-02-12 21:59:53 +08:00
weiihann	7aebfb3c71	nomt/core: add Phase 1 core primitives for NOMT binary merkle trie ... Implement foundational types and algorithms for the NOMT storage engine: - node.go: Node/KeyPath/ValueHash types with MSB-based kind discrimination - hasher.go: Keccak256 hashing with leaf/internal MSB labeling - page.go: 4096-byte RawPage layout (126 nodes + elided children + pageID) - pageid.go: PageID encode/decode with shift-then-add encoding - triepos.go: TriePosition navigation (Down/Up/Sibling/PageID/NodeIndex) - pagediff.go: 128-bit PageDiff bitfield for tracking changed nodes - update.go: BuildTrie 3-pointer left-frontier algorithm, LeafOpsSpliced Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-02-12 17:05:00 +08:00