attestix: Offline Verifier for Attestix Ed25519 Credentials and UCAN Delegations

An offline verifier for verifiable credentials and delegation chains issued by the Attestix Python core. Verifies Ed25519 (RFC 8032) signatures over W3C Verifiable Credentials, decodes Ed25519 'did:key' identifiers, and verifies UCAN delegation chains (EdDSA 'JWT's) including capability attenuation, with no Python runtime required. Reproduces the Attestix JCS-style JSON canonical form (a practical subset of RFC 8785 that additionally applies 'NFC' Unicode normalization) byte-for-byte so that signatures produced by the reference implementation verify here. Useful for compliance, research and biostatistics users who work in R and need to check AI-agent compliance credentials. See <https://attestix.io> for the project and <https://attestix.io/spec/bundle/v1> for the bundle wire format.

Version:	0.4.1
Depends:	R (≥ 4.0.0)
Imports:	sodium, openssl, stringi
Suggests:	jsonlite, testthat (≥ 3.0.0)
Published:	2026-07-04
DOI:	10.32614/CRAN.package.attestix (may not be active yet)
Author:	Pavan Kumar Dubasi [aut, cre], VibeTensor [cph, fnd]
Maintainer:	Pavan Kumar Dubasi <info at vibetensor.com>
BugReports:	https://github.com/VibeTensor/attestix-r/issues
License:	Apache License (≥ 2)
URL:	https://github.com/VibeTensor/attestix-r, https://attestix.io
NeedsCompilation:	no
Materials:	README
CRAN checks:	attestix results

Documentation:

Reference manual:

attestix.html , attestix.pdf

Downloads:

Package source:	attestix_0.4.1.tar.gz
Windows binaries:	r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries:	r-release (arm64): attestix_0.4.1.tgz, r-oldrel (arm64): attestix_0.4.1.tgz, r-release (x86_64): attestix_0.4.1.tgz, r-oldrel (x86_64): not available

Linking:

Please use the canonical form https://CRAN.R-project.org/package=attestix to link to this page.