Pith Number

pith:WX2VIUOD

pith:2003:WX2VIUOD7QKFGXPQ3IOY2IRR5W

not attested not anchored not stored refs pending

Spatially resolved spectroscopy of Coma cluster early -- type galaxies: III. The stellar population gradients

D. Mehlert, D. Thomas, G. Wegner, R. Bender, R.P. Saglia

arxiv:astro-ph/0306219 v1 · 2003-06-11 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WX2VIUOD7QKFGXPQ3IOY2IRR5W}

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	2026-07-04T15:20:11.331283Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5f55451c3fc14535df0da1d8d2231edbf6dfdbc482e2f6e06b378cb65e8ada6

Aliases

arxiv: astro-ph/0306219 · arxiv_version: astro-ph/0306219v1 · doi: 10.48550/arxiv.astro-ph/0306219 · pith_short_12: WX2VIUOD7QKF · pith_short_16: WX2VIUOD7QKFGXPQ · pith_short_8: WX2VIUOD

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/WX2VIUOD7QKFGXPQ3IOY2IRR5W \
  | 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: b5f55451c3fc14535df0da1d8d2231edbf6dfdbc482e2f6e06b378cb65e8ada6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1dcf09e5b492f45aed53d225d4daa8edd6ed39d573cf8f4d2ddd069ae649b066",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-06-11T07:05:30Z",
    "title_canon_sha256": "70f61cc2be387e4e5753d6f33ef139d29aa55ba854971b1aee9131a1157325e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0306219",
    "kind": "arxiv",
    "version": 1
  }
}