ProvenArc Signed Portable Provenance Record - SYNTHETIC DEMO
Record: PA-SPPR-2048
Locale: pt-BR

This package contains a real Ed25519 signature for technical demonstration only.
It is not a TL2N, ICP-Brasil, gov.br, or legally binding signature.

Verify file hashes:
  python3 verify.py

Verify signature with OpenSSL:
  openssl pkeyutl -verify -pubin -inkey public-key.der -keyform DER -rawin -in manifest.json -sigfile signature.bin

The source code intentionally derives a deterministic demo key. Never use it in production.
