Bluefield
Web scraping with provenance
Every live fetch returns a signed, offline-verifiable capture. Cached responses and PDFs are unsigned in v1.
What is web scraping provenance?
Web scraping provenance is a verifiable record of how page content was obtained, when it was fetched, and what transformations were applied before delivery.
- Attestation manifest
- Signed JSON document on every live capture.
- Watch mode
- Persistent URL monitoring with webhook delivery on semantic changes.
- History API
- Retrieve prior scrape results for a URL within your retention window.
Bluefield capabilities
| Capability | Detail |
|---|---|
| Signed manifests | Ed25519 signatures verifiable with published keys |
| Watch mode | Adaptive polling with semantic differ |
| changeTracking | Diff versus previous scrape in git diff or JSON patch form |
| Self host | Run the same attestation pipeline in your own cloud |
| Enterprise archive | Extended attestation retention on Enterprise plans |
Frequently asked questions
- What does the attestation manifest contain?
- Fetch timestamp, URL, tier used, content hash, and a signature over the manifest fields.
- How do I verify a manifest?
- Use the public key and verification steps documented at docs.bluefields-data.com/signatures.
- Is watch mode included on the free tier?
- Yes. Webhook delivery is available on all plans including Free.