Pith Number

pith:ZUG6IHIX

pith:2015:ZUG6IHIXW7XCDST2IX27HGHRYM

not attested not anchored not stored refs pending

Systematic variation of central mass density slope in early-type galaxies

A. J. Romanowsky, C. Tortora, F. La Barbera, I. Ferreras, N. R. Napolitano, R. R. de Carvalho

arxiv:1507.01210 v1 · 2015-07-05 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZUG6IHIXW7XCDST2IX27HGHRYM}

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	2026-05-18T01:11:46.845949Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd0de41d17b7ee21ca7a45f5f398f1c32eb38114fa06097d31c5f7302aa7724f

Aliases

arxiv: 1507.01210 · arxiv_version: 1507.01210v1 · doi: 10.48550/arxiv.1507.01210 · pith_short_12: ZUG6IHIXW7XC · pith_short_16: ZUG6IHIXW7XCDST2 · pith_short_8: ZUG6IHIX

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/ZUG6IHIXW7XCDST2IX27HGHRYM \
  | 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: cd0de41d17b7ee21ca7a45f5f398f1c32eb38114fa06097d31c5f7302aa7724f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d85aec62a5efd7117f0122f6b788bb310b9e8a45f888711e7fa4a0e773319081",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-07-05T12:21:08Z",
    "title_canon_sha256": "c99a3d2babf6c49621ce05120afe57ae661d2d3b7f57a0787cc5cf04290ab802"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.01210",
    "kind": "arxiv",
    "version": 1
  }
}