Pith Number

pith:2OU5PRT4

pith:2004:2OU5PRT4XWURVCM6ZANA3PZFJN

not attested not anchored not stored refs pending

Disappearance of N2H+ from the Gas Phase in the Class 0 Protostar IRAM 04191

(2) SAp, A. Belloche (1), Bonn, CEA/Saclay), P. Andre (2) ((1) MPIFR

arxiv:astro-ph/0402016 v1 · 2004-02-01 · 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{2OU5PRT4XWURVCM6ZANA3PZFJN}

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	2026-05-18T00:52:34.830562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3a9d7c67cbda91a899ec81a0dbf254b45a85e3da673860314609864297b053e

Aliases

arxiv: astro-ph/0402016 · arxiv_version: astro-ph/0402016v1 · doi: 10.48550/arxiv.astro-ph/0402016 · pith_short_12: 2OU5PRT4XWUR · pith_short_16: 2OU5PRT4XWURVCM6 · pith_short_8: 2OU5PRT4

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/2OU5PRT4XWURVCM6ZANA3PZFJN \
  | 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: d3a9d7c67cbda91a899ec81a0dbf254b45a85e3da673860314609864297b053e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2231975528ab681af17ba58bee381c5833fc00668c2abecf4ee0beea904683d4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-02-01T21:44:45Z",
    "title_canon_sha256": "c00382e9f3ebd861f0deba3e7d2f3e6b53cb0d744ac0013a724bf24f60d7eca9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0402016",
    "kind": "arxiv",
    "version": 1
  }
}