Pith Number

pith:QHJPR4JN

pith:2013:QHJPR4JNTY24CLRTKYTKTPXQOF

not attested not anchored not stored refs pending

The Hubble Space Telescope Treasury Program on the Orion Nebula Cluster

C. F. Manara (ESO), C. R. O'Dell (Vanderbilt), D. R. Soderblom (STScI), E. Bergeron (STScI), E. D. Feigelson (Pennsylvania State), Fisk University, F. Palla (INAF-Arcetri), G. Scandariato (INAF-Catania), I. N. Reid (STScI), J. Krist (JPL), J. R. Najita (NOAO), J. R. Stauffer (Spitzer Science Center), K. G. Stassun (Vanderbilt, K. Smith (MPIA-Heidelberg), L. A. Hillenbrand (Caltech), L. Frattare (STScI), L. Ricci (Caltech), M. Andersen (ESA-ESTEC), MIT), M. McMaster (STScI), M. Meyer (ETH-Zurich), M. Reggiani (ETH-Zurich), M. Robberto (STScI), M. Romaniello (ESO), M. Simon (Stony Brook), N. Da Rio (ESA-ESTEC), N. Panagia (STSci), P. R. McCullough (STScI), R. B. Makidon (STScI), T. T. Ananna (Bryn Mawr College), V. Kozhurina-Platais (STScI), Z. Levay (STScI)

arxiv:1304.4866 v1 · 2013-04-17 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QHJPR4JNTY24CLRTKYTKTPXQOF}

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	2026-05-18T01:50:31.583640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81d2f8f12d9e35c12e335626a9bef07178f3ead7b37b8696ade227895bbe1a9d

Aliases

arxiv: 1304.4866 · arxiv_version: 1304.4866v1 · doi: 10.48550/arxiv.1304.4866 · pith_short_12: QHJPR4JNTY24 · pith_short_16: QHJPR4JNTY24CLRT · pith_short_8: QHJPR4JN

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/QHJPR4JNTY24CLRTKYTKTPXQOF \
  | 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: 81d2f8f12d9e35c12e335626a9bef07178f3ead7b37b8696ade227895bbe1a9d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7456fa1026f332926b49ed197d85f62a7ada3dc75fa84a255bc691aa120f1aa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-04-17T15:46:21Z",
    "title_canon_sha256": "3cc69bcd38a343386fabe46c3da6618b43c6d3d10718b30c238ba284b61a688f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.4866",
    "kind": "arxiv",
    "version": 1
  }
}