Pith Number

pith:6PUFTXU2

pith:2009:6PUFTXU2KKEVPWVL62QLCCSO2P

not attested not anchored not stored refs pending

The age of blue LSB galaxies

2), (2) The Institute of Physics, (3) Physics Faculty, 4), (4) Astronomisches Institut, (5) New Mexico State University/APO, 6), (6) Sternberg Astronomical Institute, Bochum, Canada, D. Bizyaev (5, D. Bomans (4), E. I. Vorobyov (1, Germany, Halifax, Moscow, R.-J. Dettmar (4); ((1) The Institute for Computational Astrophysics, Rostov-on-Don, Ruhr-Universitat Bochum, Russia, Russia), Saint Mary's Univ., South Federal Univ., Sunspot, USA, Yu. Shchekinov (3

arxiv:0907.0830 v1 · 2009-07-05 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6PUFTXU2KKEVPWVL62QLCCSO2P}

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	2026-05-18T02:13:05.238853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3e859de9a528957daabf6a0b10a4ed3f8b28e7d4165f788aab7a1fb7a3885dd

Aliases

arxiv: 0907.0830 · arxiv_version: 0907.0830v1 · doi: 10.48550/arxiv.0907.0830 · pith_short_12: 6PUFTXU2KKEV · pith_short_16: 6PUFTXU2KKEVPWVL · pith_short_8: 6PUFTXU2

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/6PUFTXU2KKEVPWVL62QLCCSO2P \
  | 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: f3e859de9a528957daabf6a0b10a4ed3f8b28e7d4165f788aab7a1fb7a3885dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83023bf885935597d476438612f1872bc252b1e10a0d7957bb905751737a8470",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-05T07:43:51Z",
    "title_canon_sha256": "e3475105a57f200b71c62f1b9518f079e0267d6d8577c621f4becebea2771673"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.0830",
    "kind": "arxiv",
    "version": 1
  }
}