---
language:
- en
license: apache-2.0
tags:
- sovereign
- snapkitty
- programming-language
- deterministic
- ledger
- cryptography
- sha256
- mumps
- ibm-i
- worm-sealed
- zero-dependencies
- pure-python
- formal-verification
task_categories:
- text-generation
size_categories:
- n<1K
pretty_name: MANTRA — Deterministic Auditable Language
---

# MANTRA

**A deterministic, auditable programming language for ledger operations, cryptographic sealing, and verified integer computation.**

Zero external dependencies. Pure Python. Auditable SHA-256. MUMPS gateway.

SnapKitty West / SNAPKITTYWEST — *Evidence or Silence — 2026*

---

## What It Is

MANTRA is a purpose-built language for sovereign ledger operations. Every computation is deterministic and traceable. Every output can be cryptographically sealed. No external dependencies — the SHA-256 implementation is pure Python and auditable line by line.

```
# Constants and variables
const GENESIS = "0000000000000000000000000000000000000000000000000000000000000000"
let amount = 450000

# Annotated deterministic function
@deterministic
define seal(tx)
  let h = sha256(tx)
  Result::ok(h)
end

# Run
python mantra.py run examples/ledger.m
python mantra.py hash "hello world"
```

---

## Test Status

| Suite | Tests |
|---|---|
| test_sha256 | passing |
| test_integer | passing |
| test_bytes | passing |
| test_evaluator | passing |
| **Total** | **23/23** |

---

## Architecture

```
mantra/
├── mantra.py                   CLI (run / eval / hash / test)
├── lexer/lexer.py              Tokenizer (HEX, BYTES, annotations, keywords)
├── mantra_ast/nodes.py         AST dataclasses
├── parser/parser.py            Pratt parser + field access + dict literals
├── runtime/
│   ├── types.py                Integer, Boolean, Bytes, String, DictValue, Option, Result
│   ├── evaluator.py            Tree-walking evaluator with closures + builtins
│   ├── runtime.py              run_source / run_file
│   └── stdlib/
│       ├── integer.py          add/sub/mul/div/mod/pow with overflow checking
│       ├── bit.py              band/bor/bxor/bnot/shl/shr/rotl/rotr
│       ├── bytes.py            concat/slice/len/get_byte
│       ├── string.py           to_bytes/from_bytes/concat
│       ├── hex.py              bytes_to_hex/hex_to_bytes
│       ├── sha256.py           sha256/sha256_hex (wraps auditable impl)
│       ├── collections.py      list_len/list_get/dict_get
│       ├── result.py           ok/err/some/none
│       └── testing.py          assert_eq/assert_true/assert_false
├── sha256/
│   ├── sha256_impl.py          Pure-Python SHA-256 (no hashlib, fully auditable)
│   └── vectors.py              NIST canonical test vectors
├── gateway/
│   └── mumps_gateway.py        300-byte binary record pack/unpack/dispatch (IBM i bridge)
└── examples/
    ├── ledger.m                Transaction seal (end-to-end working)
    └── treasury.m              Multi-step ledger chain
```

---

## Key Properties

| Property | Detail |
|---|---|
| Deterministic | Same inputs always produce same outputs |
| Auditable SHA-256 | Pure Python, no hashlib, every round visible |
| Zero dependencies | Nothing to install beyond Python 3.10+ |
| MUMPS gateway | 300-byte binary record bridge to IBM i |
| Fail-closed types | Option and Result — no silent nulls |
| Overflow checking | Integer arithmetic bounds-checked |

---

## License

Trilicensed: Apache-2.0 / MIT / Sovereign-Source-1.0 (see `LICENSES/`)

---

## Related Repos

| Repo | Description |
|---|---|
| [SNAPKITTYWEST/sov](https://huggingface.co/datasets/SNAPKITTYWEST/sov) | Sovereign Package Switchboard |
| [SNAPKITTYWEST/devflow-finance-twin](https://huggingface.co/datasets/SNAPKITTYWEST/devflow-finance-twin) | IBM i BaaS ledger stack |
| [SNAPKITTYWEST/sovereign-training-corpus](https://huggingface.co/datasets/SNAPKITTYWEST/sovereign-training-corpus) | Training corpus |
| [GitHub](https://github.com/SNAPKITTYWEST/mantra) | Source repository |