Pith Number

pith:6QSOGBGV

pith:2009:6QSOGBGVN732YNW77N3LIHVMOG

not attested not anchored not stored refs pending

Gas Mass Fractions and Star Formation in Blue-Sequence E/S0 Galaxies

(2) University of North Carolina, (3) Rutgers University), A. J. Baker (3) ((1) University of Maryland, L. H. Wei (1), S. J. Kannappan (2), S. N. Vogel (1)

arxiv:0911.2248 v1 · 2009-11-11 · 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{6QSOGBGVN732YNW77N3LIHVMOG}

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	2026-05-18T02:34:11.151755Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f424e304d56ff7ac36dffb76b41eac71ba58ffd133b1046212a1fb8021f4606a

Aliases

arxiv: 0911.2248 · arxiv_version: 0911.2248v1 · doi: 10.48550/arxiv.0911.2248 · pith_short_12: 6QSOGBGVN732 · pith_short_16: 6QSOGBGVN732YNW7 · pith_short_8: 6QSOGBGV

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/6QSOGBGVN732YNW77N3LIHVMOG \
  | 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: f424e304d56ff7ac36dffb76b41eac71ba58ffd133b1046212a1fb8021f4606a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d92be295cb4c87a08e8b545822b9ea6c8bee7cb7d1f692342c7f868363416b5f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-11-11T21:42:49Z",
    "title_canon_sha256": "46fec4ede98a86b75f0a44c8757fa517a63c17228ba166d7ccc688d043e8988e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.2248",
    "kind": "arxiv",
    "version": 1
  }
}