Spt Filebase _verified_ May 2026

| Layer | Function | |-------|----------| | | Handles file writes, chunking, deduplication, and initial hash computation. | | Index Layer | Maintains a persistent LSM (Log-Structured Merge) tree over metadata tags, file IDs, and temporal markers. | | Storage Layer | A content-addressable block store (CABS) with optional erasure coding and tiered compression (Zstandard, LZ4, or LZMA). | | Query Layer | Exposes a SQL-like or GraphQL interface for predicate-based file discovery and retrieval. | 3. File Identity & Addressing Every file in the SPT Filebase is identified by a triple:

files( namespace: "archive" predicate: "mime_type = application/x-parquet" sort: "size DESC" limit: 100 ) file_id version content_hash metadata retention_days, owner spt filebase

1. Abstract The SPT Filebase is a specialized, high-performance data storage and retrieval architecture designed for managing structured, semi-structured, and unstructured file assets within an SPT (Single Point of Truth or Stream-Process-Transform) ecosystem. Unlike traditional file systems or blob stores, the SPT Filebase implements a dual-hash content addressing scheme, transactional versioning, and a predicate-based query engine over file metadata. This document explores its internal design, indexing mechanics, concurrency model, and fault-tolerance guarantees. 2. Core Architecture An SPT Filebase instance is composed of four logical layers: | Layer | Function | |-------|----------| | |