vahtian (Python)
Reproducible, provenance-first evidence tooling. Freeze a record set into a content-hashed, provenance-stamped, date-locked corpus; verify reproducibility; keep a hash-chained audit trail. Stdlib-only.
The same core and on-disk format exist in the R package vahtian, so a corpus
frozen in Python verifies in R and vice versa.
import vahtian
corpus = vahtian.freeze(records, search_date="2026-06-23")
corpus.save("frozen-corpus") # frozen-corpus.jsonl + .manifest.json
assert vahtian.verify(corpus) # tamper-evident
L = vahtian.Ledger()
L.append("human:hha", "rate", {"record_id": "pmid:12345", "value": "supported"})
L.append("ai:opus/pv1", "advise", {"record_id": "pmid:12345", "value": "supported"})
assert L.verify() # retro-edits break the chain
vahti (Finnish) = sentinel / guard. Human-first. AI-second. Auditable. Apache-2.0.
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publish.yml on heidihelena/vahtian
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- Upload date:
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- Uploaded via:
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Provenance
The following attestation bundles were made for vahtian-0.1.1-py3-none-any.whl:
Publisher:
publish.yml on heidihelena/vahtian
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Statement:
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Statement type:
https://in-toto.io/Statement/v1 -
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Permalink:
heidihelena/vahtian@e221e9d220ceabc8699accf90ad78a6b9c313e64 -
Branch / Tag:
refs/tags/v0.1.1 - Owner: https://github.com/heidihelena
-
Access:
public
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Token Issuer:
https://token.actions.githubusercontent.com -
Runner Environment:
github-hosted -
Publication workflow:
publish.yml@e221e9d220ceabc8699accf90ad78a6b9c313e64 -
Trigger Event:
push
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