Pith Number

pith:YWUKHVP5

pith:2002:YWUKHVP5NYT2QKX7WNZCUP545I

not attested not anchored not stored refs pending

The Degree of CO Depletion in Pre-stellar Cores

2), (2) Observatoire de Grenoble, (3) Observatoire de Bordeaux, (4) UNAM Mexico), Alain Castets (3), Aurore Bacmann (1), Bertrand Lefloch (2), Cecilia Ceccarelli (3, Juergen Steinacker (1), Laurent Loinard (4) ((1) AIU Jena

arxiv:astro-ph/0205154 v1 · 2002-05-10 · 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{YWUKHVP5NYT2QKX7WNZCUP545I}

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	2026-05-18T04:37:11.900788Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5a8a3d5fd6e27a82affb3722a3fbcea0d99c5d0a778d15c2db7748deef229be

Aliases

arxiv: astro-ph/0205154 · arxiv_version: astro-ph/0205154v1 · doi: 10.48550/arxiv.astro-ph/0205154 · pith_short_12: YWUKHVP5NYT2 · pith_short_16: YWUKHVP5NYT2QKX7 · pith_short_8: YWUKHVP5

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/YWUKHVP5NYT2QKX7WNZCUP545I \
  | 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: c5a8a3d5fd6e27a82affb3722a3fbcea0d99c5d0a778d15c2db7748deef229be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f4030c0353756dfe48da09afef2b7ec9bea80e64f1439ea9408f7474bd10cc9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-05-10T13:40:31Z",
    "title_canon_sha256": "8c1f3add0a87af644532c631b4f7b535a36eb6777178dd3f163eab5f9ddbaae3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0205154",
    "kind": "arxiv",
    "version": 1
  }
}