power_house 0.3.1

# SDKs

Power House v0.3.1 ships matching Rust and zero-dependency Python interfaces
for `.pha` and Rootprint v1.

## Rust

```rust
use power_house::{prove_with_rootprint, provenance::PhaArtifact};
use serde_json::json;

let artifact = PhaArtifact::new(
    json!({"source": "rust"}),
    "power-house/example/v1",
    json!({"claim": 7}),
    json!({"accepted": true}),
)?;
let graph = prove_with_rootprint!(label: "main", artifact: artifact)?;
graph.verify()?;
# Ok::<(), Box<dyn std::error::Error>>(())
```

## Python

The Python package is distributed in this repository and in the crate source
archive. Install it from a checkout or extracted crate:

```bash
python3 -m pip install ./sdk/python
```

```python
from power_house import create_artifact, new_rootprint, verify_rootprint

artifact = create_artifact(
    {"source": "python"},
    "power-house/example/v1",
    {"claim": 7},
    {"accepted": True},
)
graph = new_rootprint("main", artifact)
verify_rootprint(graph)
```

The default Python namespace contains no EPA functions. Optional attachment
transport requires an explicit import from `power_house.external`.

Both implementations consume the vectors in `conformance/pha-v1`.

## Core API mapping

| Operation | Rust | Python |
| --- | --- | --- |
| Create `.pha` | `PhaArtifact::new` | `create_artifact` |
| Verify `.pha` core | `PhaArtifact::verify` | `verify_artifact` |
| Create Rootprint | `Rootprint::new` or `prove_with_rootprint!` | `new_rootprint` |
| Navigate | `Rootprint::navigate` | `navigate` |
| Fork | `Rootprint::fork` | `fork` |
| Merge | `Rootprint::merge` | `merge` |
| Compare core identity | `Rootprint::equivalent` | `equivalent` |
| Verify graph | `Rootprint::verify` | `verify_rootprint` |

## Conformance

```bash
cargo run --example pha_conformance_vectors
PYTHONPATH=sdk/python python3 -m unittest discover -s sdk/python/tests -v
```

The suite verifies matching fingerprints and branch IDs, rejects core
mutations, and confirms that EPA mutation remains outside core validity.