Pith Number

pith:74KD7TLR

pith:2009:74KD7TLRD6KF3UZ6RWKBBP7G4L

not attested not anchored not stored refs pending

Star formation history of CMa R1: I. Wide-field X-ray study of the young stellar population

(2) Laboratoire d'Astrophysique de Grenoble, (3) Instituto Nacional de Pesquisas Espaciais, (4) Universit\"ats-Sternwarte M\"unchen, (5) Astrophysikaliches Institut Potsdam.), Brazil, C. V. Rodrigues (3), Departamento de Astronomia, Divis\~ao de Astrof\'isica, E. Marciotto (1), France, Germany, H. Zinnecker (5) ((1) Universidade de S\~ao Paulo, IAG, J. Gregorio-Hetem (1), S\~ao Jos\'e dos Campos, SP, T. Montmerle (2), T. Preibisch (4), Universit\'e Joseph Fourier-CNRS

arxiv:0909.2888 v1 · 2009-09-15 · 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{74KD7TLRD6KF3UZ6RWKBBP7G4L}

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	2026-05-18T02:11:47.601304Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff143fcd711f945dd33e8d9410bfe6e2fb7716c632d4d25525fe28aa0198b03d

Aliases

arxiv: 0909.2888 · arxiv_version: 0909.2888v1 · doi: 10.48550/arxiv.0909.2888 · pith_short_12: 74KD7TLRD6KF · pith_short_16: 74KD7TLRD6KF3UZ6 · pith_short_8: 74KD7TLR

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/74KD7TLRD6KF3UZ6RWKBBP7G4L \
  | 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: ff143fcd711f945dd33e8d9410bfe6e2fb7716c632d4d25525fe28aa0198b03d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6b71a37025187e7492cbd6ceaad69329b6c612855a3eb6e7752a4b061a5fadc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-15T21:50:05Z",
    "title_canon_sha256": "4de7a280f8adb474dcf6eeceafe5f8e854f9e048bf8cde514e3900e466f18ce9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2888",
    "kind": "arxiv",
    "version": 1
  }
}