Libraries tagged by provenance

SLSA Provenance predicates (v1 and v0.2) for PHP

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PHP library for C2PA Content Credentials: build, sign, read and verify manifests, with machine-readable marking of AI-generated content (EU AI Act, Article 50).

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Build, sign and verify in-toto attestation Statements (v1 and v0.1) in PHP

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Composer plugin that verifies GitHub build-provenance attestations for the packages you install

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Vortos Release — immutable build manifests, schema fingerprinting, rollback invariant math, semver/changelog, and coordinated multi-repo tagging. Write-once persistence enforced at the storage layer; provenance-ready for cosign/SLSA attestation.

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Store machine, human, and source assertions as append-only claims with confidence, basis, and provenance.

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Build Sigstore bundles (.sigstore.json) in PHP — the counterpart to verification, emitting DSSE and message-signature bundles

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Shared, provenance-aware AI pricing and cost attribution for Laravel applications.

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Verifier for C2PA Content Credentials in pure PHP: JPEG, PNG, WebP and ISOBMFF, with c2patool's verdict. Read and verify only; no signing, no keys, no network.

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Verbatim — a quote that knows when it has gone stale. The words never change; the quote says so when the post it came from has been edited since.

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Store machine, human, and source assertions as append-only claims with confidence, basis, and provenance.

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Framework-agnostic, typed settings engine for PHP 8.5+. Resolves persistent per-scope overrides over application defaults, with provenance, strict validation and an optional PSR-16 cache.

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Scan files for C2PA, XMP, and common AI provenance byte markers before social upload.

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Cache-first, SEO-first, AI-native PHP application framework.

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PHP implementation of the W3C Provenance Data Model (PROV-DM)

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