Pith Number

pith:CWTBVGGY

pith:2013:CWTBVGGYNQP6ZY2EDIFJHLQHFP

not attested not anchored not stored refs pending

Age and metallicity gradients in fossil ellipticals

Paul Eigenthaler, Werner W. Zeilinger

arxiv:1303.4963 v1 · 2013-03-20 · 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{CWTBVGGYNQP6ZY2EDIFJHLQHFP}

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	2026-05-18T01:51:00.329520Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15a61a98d86c1fece3441a0a93ae072bce9de7b3d2a8138b7c221d59108e22aa

Aliases

arxiv: 1303.4963 · arxiv_version: 1303.4963v1 · doi: 10.48550/arxiv.1303.4963 · pith_short_12: CWTBVGGYNQP6 · pith_short_16: CWTBVGGYNQP6ZY2E · pith_short_8: CWTBVGGY

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/CWTBVGGYNQP6ZY2EDIFJHLQHFP \
  | 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: 15a61a98d86c1fece3441a0a93ae072bce9de7b3d2a8138b7c221d59108e22aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a490efdd706cde55bc37af87ac6fe0fa279afe5443054a11d661741a1feb9546",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-20T15:22:59Z",
    "title_canon_sha256": "72a4e73c95834f6eaf9c15792314aaa63d65b80b3f7e5bbde03a89be04f37558"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.4963",
    "kind": "arxiv",
    "version": 1
  }
}