plumb-line-provenance (Python)

A conservative provenance / confidence / lineage envelope with a taint-propagation combination law: once any input is mock or low-confidence, every value derived from it inherits that taint automatically — there is no escape hatch that silently clears the flag.

from plumb_line_provenance import mark, derive, meta_of, audit_meta

base = mark(1000, source='real', confidence='high')
rate = mark(1.25, source='mock', confidence='low')
total = derive([base, rate], lambda a, r: a * r)

total['meta']['derived_from_mock']  # True  — inherited from rate, cannot be cleared
total['meta']['confidence']         # 'low' — only as certain as the weakest input
audit_meta(meta_of(total))          # []    — internally consistent

You can also copy the module files directly into a project and import them flat (from marked import mark); both styles work.

Specification: SPEC.md (envelope schema version 2)
Model, law, examples: README.md
License: Apache-2.0

JavaScript parity package: plumb-line-provenance on npm.

Development Status
- 4 - Beta
Intended Audience
- Developers
- Science/Research
Programming Language
- Python :: 3
Topic
- Software Development :: Quality Assurance

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

plumb_line_provenance-0.7.1.tar.gz (14.6 kB view details)

Uploaded Jul 12, 2026 Source

Built Distribution

If you're not sure about the file name format, learn more about wheel file names.

The dropdown lists show the available interpreters, ABIs, and platforms. Enable javascript to be able to filter the list of wheel files.

plumb_line_provenance-0.7.1-py3-none-any.whl (10.6 kB view details)

Uploaded Jul 12, 2026 Python 3

File details

Details for the file plumb_line_provenance-0.7.1.tar.gz.

File metadata

Download URL: plumb_line_provenance-0.7.1.tar.gz
Upload date: Jul 12, 2026
Size: 14.6 kB
Tags: Source
Uploaded using Trusted Publishing? Yes
Uploaded via: twine/6.1.0 CPython/3.13.13

File hashes

Hashes for plumb_line_provenance-0.7.1.tar.gz
Algorithm	Hash digest
SHA256	`9600f6b1873df0655f36715ce981c5ceb3b5c35688d78902218de34171ab7ca5`
MD5	`31cbff8a1973fb08aeb519baa5ecba07`
BLAKE2b-256	`e3177acc9805a565b8a246a7565ae471d6cb7590e7e675950c29afc87bda81e2`

See more details on using hashes here.

Provenance

The following attestation bundles were made for plumb_line_provenance-0.7.1.tar.gz:

Publisher: release.yml on slopstopper/plumb-line

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

Statement:
- Statement type: https://in-toto.io/Statement/v1
- Predicate type: https://docs.pypi.org/attestations/publish/v1
- Subject name: plumb_line_provenance-0.7.1.tar.gz
- Subject digest: 9600f6b1873df0655f36715ce981c5ceb3b5c35688d78902218de34171ab7ca5
- Sigstore transparency entry: 2150673396
- Sigstore integration time: Jul 12, 2026
Source repository:
- Permalink: slopstopper/plumb-line@d933c4c3b376ab1bc22e1d5bd69a8b52a544de7e
- Branch / Tag: refs/tags/v0.7.1
- Owner: https://github.com/slopstopper
- Access: public
Publication detail:
- Token Issuer: https://token.actions.githubusercontent.com
- Runner Environment: github-hosted
- Publication workflow: release.yml@d933c4c3b376ab1bc22e1d5bd69a8b52a544de7e
- Trigger Event: push