Pith Number

pith:LY5XFUPT

pith:2010:LY5XFUPT3COHSPNQJOOJGSS54K

not attested not anchored not stored refs pending

Early-type galaxies at large galactocentric radii - II. Metallicity gradients, and the [Z/H]--mass, [alpha/Fe]--mass relations

Chiaki Kobayashi, Duncan A. Forbes, George K. T. Hau, Max Spolaor, Warrick J. Couch

arxiv:1006.1698 v1 · 2010-06-09 · astro-ph.CO · 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{LY5XFUPT3COHSPNQJOOJGSS54K}

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	2026-05-18T02:06:55.784924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e3b72d1f3d89c793db04b9c934a5de28cd358e796aa75cf16978afa53b3a538

Aliases

arxiv: 1006.1698 · arxiv_version: 1006.1698v1 · doi: 10.48550/arxiv.1006.1698 · pith_short_12: LY5XFUPT3COH · pith_short_16: LY5XFUPT3COHSPNQ · pith_short_8: LY5XFUPT

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/LY5XFUPT3COHSPNQJOOJGSS54K \
  | 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: 5e3b72d1f3d89c793db04b9c934a5de28cd358e796aa75cf16978afa53b3a538

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d82350f87a6cd7bc79f1c4ad960d5a0fc46af61d7889b138baa49ebb2344689",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-06-09T03:41:21Z",
    "title_canon_sha256": "c18e2d7283968b43a891d58623a05a7dfeb9883560e68eb3ef5425a783db239d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.1698",
    "kind": "arxiv",
    "version": 1
  }
}