Pith Number

pith:WGYVVAOU

pith:2018:WGYVVAOUNB5GX2Y3UBX7P2ZYHX

not attested not anchored not stored refs pending

A relation between characteristic stellar age of galaxies and their intrinsic shape

Anne M. Medling, Caroline Foster, Francesco D'Eugenio, Iraklis S. Konstantopoulos, Jesse van de Sande, Jon S. Lawrence, Joss Bland-Hawthorn, Julia J. Bryant, Luca Cortese, Matthew Colless, Matt S. Owers, Michael Goodwin, Nicholas Scott, Richard M. McDermid, Rob Sharp, Samuel N. Richards, Sarah Brough, Scott M. Croom

arxiv:1804.07769 v1 · 2018-04-20 · 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{WGYVVAOUNB5GX2Y3UBX7P2ZYHX}

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	2026-05-18T00:17:52.860586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1b15a81d4687a6beb1ba06ff7eb383debd8907dd57f641b638406cd199eaa10

Aliases

arxiv: 1804.07769 · arxiv_version: 1804.07769v1 · doi: 10.48550/arxiv.1804.07769 · pith_short_12: WGYVVAOUNB5G · pith_short_16: WGYVVAOUNB5GX2Y3 · pith_short_8: WGYVVAOU

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/WGYVVAOUNB5GX2Y3UBX7P2ZYHX \
  | 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: b1b15a81d4687a6beb1ba06ff7eb383debd8907dd57f641b638406cd199eaa10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ad96be651fd5ba7a3e428f2d35a9c0fcb972af8024a197cacbfdde4201397fe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-04-20T18:00:05Z",
    "title_canon_sha256": "9714f1e5693db61eb2bb57a6675b00de9a67151fb3e39889b760ec1e77b9371b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.07769",
    "kind": "arxiv",
    "version": 1
  }
}