Pith Number

pith:I73ISJ56

pith:2009:I73ISJ5677ZXFA4AKR2GU243CG

not attested not anchored not stored refs pending

Spitzer Observations of the Lambda Orionis cluster I: the frequency of young debris disks at 5 Myr

(2) Department of Astronomy, 5), Amherst, Ann Arbor, Baltimore, CA, Caltech, Jes\'us Hern\'andez (1), J. Muzerolle (3), J. Stauffer (6) ((1) Centro de Investigaciones de Astronom\'ia, L. Hartmann (2), MA, MD (4) Five Colleges Astronomy Department, M\'erida, MI (3) Space Telescope Science Institute, Northampton, Nuria Calvet (2), Pasadena, R. Gutermuth (4, Smith College, University of Massachusetts, University of Michigan, US.), US. (5) Department of Astronomy, US. (6) Spitzer Science Center, Venezuela

arxiv:0910.3884 v1 · 2009-10-20 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I73ISJ5677ZXFA4AKR2GU243CG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:34:18.068994Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47f68927befff372838054746a6b9b11a30322984d310e25f0a1402dd46fc3b1

Aliases

arxiv: 0910.3884 · arxiv_version: 0910.3884v1 · doi: 10.48550/arxiv.0910.3884 · pith_short_12: I73ISJ5677ZX · pith_short_16: I73ISJ5677ZXFA4A · pith_short_8: I73ISJ56

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/I73ISJ5677ZXFA4AKR2GU243CG \
  | 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: 47f68927befff372838054746a6b9b11a30322984d310e25f0a1402dd46fc3b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b73278d962b8e3cacc429f680c04a338bfeb64b502e1cf4adf356ecf0a16a81",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-10-20T15:50:45Z",
    "title_canon_sha256": "59cd36e64fe8b8b9187de4d1002c94dea64f59f5cc000843cb9ba296a9b752c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.3884",
    "kind": "arxiv",
    "version": 1
  }
}