Pith Number

pith:6KB3ZXKI

pith:2009:6KB3ZXKINDLDEBHDE7RM2ZLOEI

not attested not anchored not stored refs pending

The Star Formation Law at Low Surface Density

(2) NASA Goddard Space Flight Center, (3) Columbia University, (4) Observatories of the Carnegie Institution of Washington, (5) Center for Astrophysical Science Johns Hopkins University, (6) Laboratoire d'Astrophysique de Marseille, (7) Dept. of Physics, (8) Yonsei University, (9) University of California Los Angeles), Alex S. Szalay (7), Astronomy Johns Hopkins University, Barrry F. Madore (4), Bruno Milliard (6), David Schiminovich (3), D. Christopher Martin (1), James D. Neill (1), Jose Donas (6), Karl Forster (1), Luciana Bianchi (5), Mark Seibert (4), Patrick Morrissey (1), Peter G. Friedman (1), R. Michael Rich (9), Sukyoung K. Yi (8) ((1) California Institute of Technology, Susan G. Neff (2), Ted K. Wyder (1), Timothy M. Heckman (7), Tom A. Barlow (1), Young-Wook Lee (8)

arxiv:0903.3015 v1 · 2009-03-17 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6KB3ZXKINDLDEBHDE7RM2ZLOEI}

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	2026-05-18T04:29:15.882763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f283bcdd4868d63204e327e2cd656e2209f65589abe6b059478b59ae9e6fd5f4

Aliases

arxiv: 0903.3015 · arxiv_version: 0903.3015v1 · doi: 10.48550/arxiv.0903.3015 · pith_short_12: 6KB3ZXKINDLD · pith_short_16: 6KB3ZXKINDLDEBHD · pith_short_8: 6KB3ZXKI

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/6KB3ZXKINDLDEBHDE7RM2ZLOEI \
  | 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: f283bcdd4868d63204e327e2cd656e2209f65589abe6b059478b59ae9e6fd5f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13519251e2fb3ddc6b6e4773bf6b90ebe40279f337aee4a2967c70ce5803a9b4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-03-17T18:05:28Z",
    "title_canon_sha256": "4d1b59fc8a08dd91a9c04e56e535567668c9c99b7f18ecc4e9916c5f33e8cf9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.3015",
    "kind": "arxiv",
    "version": 1
  }
}