Pith Number

pith:2QM32PVD

pith:2001:2QM32PVDEWJZHYIF7YL7KZVPNV

not attested not anchored not stored refs pending

Near-Infrared Photometric Variability of Stars Toward the Orion A Molecular Cloud

John M. Carpenter, Lynne A. Hillenbrand, M. F. Skrutskie

arxiv:astro-ph/0102446 v1 · 2001-02-26 · 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{2QM32PVDEWJZHYIF7YL7KZVPNV}

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

The Accretion Process on Protostars

Receipt and verification

First computed	2026-07-04T15:49:34.664991Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d419bd3ea3259393e105fe17f566af6d531071bd34319589d689136548b104a5

Aliases

arxiv: astro-ph/0102446 · arxiv_version: astro-ph/0102446v1 · doi: 10.48550/arxiv.astro-ph/0102446 · pith_short_12: 2QM32PVDEWJZ · pith_short_16: 2QM32PVDEWJZHYIF · pith_short_8: 2QM32PVD

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/2QM32PVDEWJZHYIF7YL7KZVPNV \
  | 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: d419bd3ea3259393e105fe17f566af6d531071bd34319589d689136548b104a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91bf5f84a897ba7863b357687133e515fa999dec2ca6261437fd62c469d5b20d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-02-26T18:35:21Z",
    "title_canon_sha256": "4d4278004947d0135243439d37931c3783198eb407542c3cbff07af906cf21ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0102446",
    "kind": "arxiv",
    "version": 1
  }
}