Pith Number

pith:52RUQNOQ

pith:2014:52RUQNOQT6UGZIGJ4QOJEYKICI

not attested not anchored not stored refs pending

The population of early-type galaxies: how it evolves with time and how it differs from passive and late-type galaxies

A. Gargiulo, F. Ciocca, I. Lonoce, M. Longhetti, P. Saracco, S. Tamburri

arxiv:1409.1028 v2 · 2014-09-03 · astro-ph.GA · 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{52RUQNOQT6UGZIGJ4QOJEYKICI}

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	2026-05-18T02:38:38.710448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eea34835d09fa86ca0c9e41c926148121d6148fbc53b81ea06c80db6c08b7b18

Aliases

arxiv: 1409.1028 · arxiv_version: 1409.1028v2 · doi: 10.48550/arxiv.1409.1028 · pith_short_12: 52RUQNOQT6UG · pith_short_16: 52RUQNOQT6UGZIGJ · pith_short_8: 52RUQNOQ

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/52RUQNOQT6UGZIGJ4QOJEYKICI \
  | 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: eea34835d09fa86ca0c9e41c926148121d6148fbc53b81ea06c80db6c08b7b18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2392766876e36fb6fcf14cfd71bc0e727bda0bb30db6ebc85aa7e540eb9fe9f7",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-09-03T10:46:06Z",
    "title_canon_sha256": "212ea98e85663d51b0b5fa7f627c911777237d37d7ee8c0bd1f2592f3372d83d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.1028",
    "kind": "arxiv",
    "version": 2
  }
}