Pith Number

pith:MMJA42LT

pith:2009:MMJA42LT3X2N4SAHUAE5SEYQCV

not attested not anchored not stored refs pending

Disk Evolution in the three Nearby Star-Forming Regions of Taurus, Chamaeleon, and Ophiuchus

2), (2) JPL, (3) University of Rochester, 4), (4) University of Michigan, (5) UNAM, Ann Arbor, B. A. Sargent (3), CA, Caltech, C. Espaillat (4), D. M. Watson (3), E. Furlan (1, K. H. Kim (3), L. Hartmann (4) ((1) NAI/UCLA, Los Angeles, Mexico), MI, M. K. McClure (3, Morelia, N. Calvet (4), NY, Pasadena, P. D'Alessio (5), P. Manoj (3), Rochester, W. J. Forrest (3)

arxiv:0909.0960 v1 · 2009-09-04 · 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{MMJA42LT3X2N4SAHUAE5SEYQCV}

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	2026-05-18T02:34:31.028965Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63120e6973ddf4de4807a009d91310155fb1c3fa7138b7333957311f930d6aa2

Aliases

arxiv: 0909.0960 · arxiv_version: 0909.0960v1 · doi: 10.48550/arxiv.0909.0960 · pith_short_12: MMJA42LT3X2N · pith_short_16: MMJA42LT3X2N4SAH · pith_short_8: MMJA42LT

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/MMJA42LT3X2N4SAHUAE5SEYQCV \
  | 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: 63120e6973ddf4de4807a009d91310155fb1c3fa7138b7333957311f930d6aa2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b22570c120707dc0b6f2b4ef9f8abaac29d33e385bc1ce3e0c510b3ddfc6a06",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-04T20:59:05Z",
    "title_canon_sha256": "9b48e4cc567e9f78a52b064f44c99f2a18d8a07eebae3b905c9986d8f3cc81c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0960",
    "kind": "arxiv",
    "version": 1
  }
}