# PromptLedger Verifiable Provenance and Licensing (MVP)

This repository implements a minimal, production-oriented MVP for a verifiable provenance ledger tailored to generative AI creative workflows.

- LocalProvenanceBlock: records a creative step (prompt, seed, model version, tool, license) with metadata.
- MerkleAuditLog: tamper-evident log of provenance blocks with a Merkle-root-like digest.
- DeltaSync: compute simple deltas between two audit logs for offline-first collaboration.
- Adapters: sample Blender and Figma adapters emitting provenance blocks.

What’s included in this MVP
- Core: promptledger_verifiable_provenance_and_l/core.py
- Adapters: promptledger_verifiable_provenance_and_l/adapters.py
- Tests: tests/test_ledger.py
- Packaging: pyproject.toml, README.md, READY_TO_PUBLISH placeholder

Usage (dev):
- Run tests: pytest
- Build package: python3 -m build

Note: This MVP uses lightweight, in-process cryptographic placeholders. Future work should introduce real cryptographic identities, policy governance, and cross-tool adapters.