Pith Number

pith:FWWHY73W

pith:2000:FWWHY73WTEXKKG7LINWCGPDWGJ

not attested not anchored not stored refs pending

Revealing deuterium Balmer lines in HII regions with VLT-UVES

(2) DAEC, (3) ESO), A. Vidal-Madjar (1), D. Pequignot (2), G. Hebrard (1), J. R. Walsh (3), R. Ferlet (1) ((1) IAP

arxiv:astro-ph/0008420 v1 · 2000-08-28 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FWWHY73WTEXKKG7LINWCGPDWGJ}

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.

Cited by

1 paper in Pith

Advancing extragalactic spectral line studies with the Square Kilometre Array Observatory

Receipt and verification

First computed	2026-07-04T14:10:40.515834Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2dac7c7f76992ea51beb436c233c7632531763aa7dec812d32a08b99f1711731

Aliases

arxiv: astro-ph/0008420 · arxiv_version: astro-ph/0008420v1 · doi: 10.48550/arxiv.astro-ph/0008420 · pith_short_12: FWWHY73WTEXK · pith_short_16: FWWHY73WTEXKKG7L · pith_short_8: FWWHY73W

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/FWWHY73WTEXKKG7LINWCGPDWGJ \
  | 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: 2dac7c7f76992ea51beb436c233c7632531763aa7dec812d32a08b99f1711731

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9bc99a13f24f6132eeea80500d37bbb754a7ce75697342303a3bbeed38d4ee7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-08-28T08:30:58Z",
    "title_canon_sha256": "d717b3c7f3c59b2bce3a6cb999fe6e5dc1ccadf5aa2f0f44135a1c441747ee80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0008420",
    "kind": "arxiv",
    "version": 1
  }
}