Pith Number

pith:WM4JGONV

pith:2004:WM4JGONVV2NB6LDLPFU6M2EUFI

not attested not anchored not stored refs pending

Mapping WR140 from infrared spectroscopy and imaging

(2) Joint Astronomy Centre, (3) European Space Research, (4) Physical Research Laboratory, A. P. Marston (3), Hilo, Navrangpura), N. M. Ashok (4) ((1) Institute for Astronomy, Noordwijk, P. M. Williams (1), Technology Center, University of Edinburgh, W. P. Varricatt (2)

arxiv:astro-ph/0411440 v1 · 2004-11-16 · 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{WM4JGONVV2NB6LDLPFU6M2EUFI}

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	2026-07-04T14:13:54.266860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3389339b5ae9a1f2c6b7969e668942a120e9f045f5dacbc4cb45d089845d6da

Aliases

arxiv: astro-ph/0411440 · arxiv_version: astro-ph/0411440v1 · doi: 10.48550/arxiv.astro-ph/0411440 · pith_short_12: WM4JGONVV2NB · pith_short_16: WM4JGONVV2NB6LDL · pith_short_8: WM4JGONV

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/WM4JGONVV2NB6LDLPFU6M2EUFI \
  | 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: b3389339b5ae9a1f2c6b7969e668942a120e9f045f5dacbc4cb45d089845d6da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd2c02ace7a41f1606cd176d080056ae6e2fa8c7e0de47e40c405c9977075fc2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-11-16T11:25:22Z",
    "title_canon_sha256": "ea2036f9c8b424787534a0bcdaf37c27579347500ce2612c0ce67454b7aaa01f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0411440",
    "kind": "arxiv",
    "version": 1
  }
}