Content-addressed citation

14d7834d…c748

14d7834dbed552850929f2ff98b67339ad8fa800cef80bd8eaa0522be11ec748

✓ Hash verifies

SHA-256 ของ canonical metadata ตรงกับ CID ใน URL — เนื้อหาด้านล่างไม่ถูกแก้หลังจาก captured

Canonical metadata

The exact JSON sub-object whose SHA-256 hash equals the CID above

Source: NLM DailyMed
Source ID: dailymed
URL: https://dailymed.nlm.nih.gov/dailymed/search.cfm?query=theophylline
License: U.S. Government work — public domain. Attribution recommended.
Captured: 2026-05-27
Status: stub

Status: stub. Bytes are not yet mirrored to this CID address. The hash is computed over the metadata block above only. Read the original at the upstream URL. Full bytes-mirroring ships with scripts/mirror.ts in Week 2+ (see ARCHITECTURE.md).

Stub citation — bytes not yet mirrored. /c/<cid> redirects readers to the upstream URL until the mirror script runs (Week 2+). The hash is computed over the `canonical` sub-object and verifies via lib/cid.ts.

Probe history · upstream fingerprint

We periodically fetch the upstream URL and store: HTTP status, response headers, and SHA-256 of the body. The body itself is never stored (copyright-safe). Future readers can re-fetch the upstream and compare hashes to detect drift.

✓ HTTP 200GET
2026-05-27 · 09:16: UTC
Content-Type
text/html; charset=utf-8
Content-Length
141,669 bytes
Body SHA-256
d488fb299e19d97a0cb4da9bf0c92e53b766435ac527be316df3a65ee94854d6
Body hash is a snapshot at probedAt. For dynamic pages (e.g. search results) the hash will differ on later fetches — that is information, not error. Original body bytes are NOT stored (copyright-safe).

Cited by

Theophylline (ทีโอฟิลลีน)— Methylxanthine bronchodilator + PDE inhibitor (chronic bronchitis, feline asthma)