oprindo
Python SDK for Oprindo — C2PA signing identity and implementation evidence for generative-AI providers.
Your content stays local
With the c2pa extra installed, mark() assembles and embeds the C2PA manifest
on your machine — only the claim (kilobytes of metadata and hashes) is sent to
Oprindo. Your media bytes never leave your process in this mode.
Without the extra, mark() refuses to run unless you explicitly pass
allow_full_service=True, which transmits the asset to the hosted marking endpoint.
The choice is always yours and always explicit.
Install
pip install oprindo[c2pa] # content-local marking (recommended)
pip install oprindo # stdlib-only: hosted verify + evidence
Mark
from oprindo import Oprindo
client = Oprindo(api_key=os.environ["OPRINDO_API_KEY"])
with open("generated.jpg", "rb") as f:
result = client.mark(f.read(), "image/jpeg", generator={"name": "YourProduct", "version": "1.0.0"})
with open("generated.marked.jpg", "wb") as f:
f.write(result.asset)
print(result.trust_state, result.evidence_id)
Every signature carries an explicit trust state (sandbox, pre_conformance, or
trusted) — never blurred. Test-key signatures carry a visible sandbox marker.
Verify
report = client.verify(asset_bytes, "image/jpeg")
Local when the c2pa extra is installed; hosted otherwise.
Evidence
records = client.evidence(from_ts="2026-08-01")
Append-only, hash-chained implementation-evidence records, mapped to EU Transparency Code Section 1 measures.
Scope
This SDK helps you implement and evidence Article 50 marking measures. Compliance depends on your complete implementation and circumstances. Nothing here is legal advice.
License
Apache-2.0
1 maintainer
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