Pith Number

pith:PCUAZTMQ

pith:2004:PCUAZTMQBDJN3FMBSQT7W6TAMT

not attested not anchored not stored refs pending

Constraints in the circumstellar density distribution of massive Young Stellar Objects

2, (2) Kapteyn Astronomical Institute, 3), (3) Max-Planck-Institut fuer Astronomie, (4) Dept. of Physical Sciences, Astrononomy Dept., C. Alvarez (1, Germany, Groningen, Heidelberg, M. Hoare (1), P. Lucas (4) ((1) Physics, The Netherlands, UK, UK), University of Hertfordshire, University of Leeds

arxiv:astro-ph/0402256 v1 · 2004-02-11 · 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{PCUAZTMQBDJN3FMBSQT7W6TAMT}

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	2026-07-04T16:43:01.068312Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78a80ccd9008d2dd95819427fb7a6064cfd606caf2ccfafe533a199b1586653b

Aliases

arxiv: astro-ph/0402256 · arxiv_version: astro-ph/0402256v1 · doi: 10.48550/arxiv.astro-ph/0402256 · pith_short_12: PCUAZTMQBDJN · pith_short_16: PCUAZTMQBDJN3FMB · pith_short_8: PCUAZTMQ

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/PCUAZTMQBDJN3FMBSQT7W6TAMT \
  | 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: 78a80ccd9008d2dd95819427fb7a6064cfd606caf2ccfafe533a199b1586653b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bcd3196784013b603d5c32c5bbb9a8ca49d3dd5a8848777241868410a0ba13dc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-02-11T12:07:05Z",
    "title_canon_sha256": "3da3532699de4fa4e10857969c18a151d59ef90d43b472e92b51c54d01c947c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0402256",
    "kind": "arxiv",
    "version": 1
  }
}