# Reproducible portable USTAR bundle composer

Build-time release reference. Runtime readiness, deployment, payment settlement and external indexing are not evaluated here. Prices are proposed; this file cannot authorize execution or payment.

WHEN TO USE: Package 1–32 supplied named UTF-8 or binary artifacts into exact reproducible regular-file USTAR bytes, canonical Base64, SHA-256 and a sorted source-index/offset manifest. Restricted portable ASCII relative paths, fixed nonexecutable metadata, no compression, archive extraction, filesystem reads/writes or universal safe-extraction claim.

Release: 0.29.0. Built: 2026-10-06T15:38:00Z.

## Choose for
- Package supplied named artifacts as an exact reproducible tar archive
- Create a byte-addressed bundle with content hashes and source indexes

## Outside this profile
- ZIP, gzip, compression, directories, links, devices, executable modes, permissions or ownership preservation
- Reading paths, extracting archives, PAX/GNU extensions or universal cross-platform extraction safety
- Sending, uploading, extracting archives, writing files, authenticating identities, or changing external state

Proposed nominal USD 0.005 per successful call; payer fees excluded. No verified runtime availability.

- [Exact release contract](/reference/services/ustar-bundle-compose.json)
- [Input schema](/reference/schemas/ustar-bundle-compose.input.json)
- [Output schema](/reference/schemas/ustar-bundle-compose.output.json)
- [Fixed example](/reference/examples/ustar-bundle-compose.json)
- [Complete HTML reference](/discover/tools/ustar-bundle-compose)