# SLM2 Composition Identity

One TinyRustLM model installation contains exactly:

- `model.slm2`
- `tokenizer.tokenizer2`
- `template.template2`
- `sampling.sampling2`
- `prompt.prompt2`
- `composition.acg2`

A MiniModel catalog entry binds every member's logical name, byte length,
SHA-256 digest, schema identity, semantic role, public source revision and
source lock, conversion and quantization profiles, runtime profile, and
qualification evidence. Paths and display aliases are not identity.

Missing, duplicate, extra, overlapping, substituted, or cross-composition
members fail closed. An exact piece match proves only those transferred bytes;
it does not substitute for final whole-member hashing, composition closure,
numerical parity, browser execution, or behavioral qualification.