Content-addressed citation

12a18a57…c8f8

12a18a5702806d3a802f5ad2ae7b33f7bd5b2ee3956b302a9504343ab051c8f8

✓ 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: WHO ATC Classification
Source ID: atc
URL: https://www.whocc.no/atc_ddd_index/?code=C01AA05&showdescription=no
License: WHO publication, free for use with attribution
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
2026-05-26 · 21:07: UTC
Content-Type
text/html; charset=ISO-8859-1
Content-Length
10,521 bytes
Last-Modified
May 26 2026 23:07:13
Body SHA-256
ff584dc32140c5462f8898af5e6742ad2e949c47ecf94c33e2ca1c99d3009434
Final URL
https://atcddd.fhi.no/atc_ddd_index/?code=C01AA05&showdescription=no
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).

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