Pith Number

pith:LJD6VLMA

pith:2010:LJD6VLMA3O5QXKF4S7HTDM6UBI

not attested not anchored not stored refs pending

Color and stellar population gradients in galaxies. Correlation with mass

C. Tortora, M. Capaccioli, N.R. Napolitano, Ph. Jetzer, R. Molinaro, V.F. Cardone

arxiv:1004.4896 v1 · 2010-04-27 · 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{LJD6VLMA3O5QXKF4S7HTDM6UBI}

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	2026-05-18T02:07:45.803378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a47eaad80dbbb0ba8bc97cf31b3d40a29a3deff8edfdef6ae0c2bd166bbf859

Aliases

arxiv: 1004.4896 · arxiv_version: 1004.4896v1 · doi: 10.48550/arxiv.1004.4896 · pith_short_12: LJD6VLMA3O5Q · pith_short_16: LJD6VLMA3O5QXKF4 · pith_short_8: LJD6VLMA

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/LJD6VLMA3O5QXKF4S7HTDM6UBI \
  | 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: 5a47eaad80dbbb0ba8bc97cf31b3d40a29a3deff8edfdef6ae0c2bd166bbf859

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce39af0dce064540b4712c6c96e698ac22ff6fc4610088bd7d7c5dd932acf4a2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-04-27T20:00:57Z",
    "title_canon_sha256": "d9a67de7cb5b786d054f97819a275da4eb45bc899fe2e31d6c2603864a0d760a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.4896",
    "kind": "arxiv",
    "version": 1
  }
}