Pith Number

pith:QWAXS3AC

pith:2010:QWAXS3ACFH2I5S5N6MXJCZ2VUH

not attested not anchored not stored refs pending

Wavelength Calibration of the VLT-UVES Spectrograph

Jonathan B. Whitmore, Kim Griest, Michael T. Murphy

arxiv:1004.3325 v2 · 2010-04-20 · astro-ph.IM · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QWAXS3ACFH2I5S5N6MXJCZ2VUH}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:07:56.501063Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8581796c0229f48ecbadf32e916755a1f87ec508bc6bbd2d42853fab3bfb17ac

Aliases

arxiv: 1004.3325 · arxiv_version: 1004.3325v2 · doi: 10.48550/arxiv.1004.3325 · pith_short_12: QWAXS3ACFH2I · pith_short_16: QWAXS3ACFH2I5S5N · pith_short_8: QWAXS3AC

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/QWAXS3ACFH2I5S5N6MXJCZ2VUH \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 8581796c0229f48ecbadf32e916755a1f87ec508bc6bbd2d42853fab3bfb17ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4fe76c7e421589fe566ec9c76f3f74f0df77c3bd56a3ae8ab0aba78ebf88b82",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2010-04-20T00:02:04Z",
    "title_canon_sha256": "c6f3070f3490745e193b26eb1fdf560f543b69d3958aeb73a96a7005584c5477"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.3325",
    "kind": "arxiv",
    "version": 2
  }
}