Pith Number

pith:GADXZAIZ

pith:2013:GADXZAIZKEHHKYGEILO7YSRHM3

not attested not anchored not stored refs pending

The different star-formation histories of blue and red spiral and elliptical galaxies

Claudia Maraston (ICG, Daniel Thomas (ICG, Joshua Richards (Imperial College London), Karen L. Masters (ICG, Portsmouth), Ramin Skibba (University of California), Rita Tojeiro (ICG, Robert C. Nichol (ICG, Steven P. Bamford (Nottingham), Will J. Percival (ICG

arxiv:1303.3551 v1 · 2013-03-14 · 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{GADXZAIZKEHHKYGEILO7YSRHM3}

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	2026-05-18T01:51:07.203401Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30077c8119510e7560c442ddfc4a2766dc41d31247185ea34429a243c973c2f5

Aliases

arxiv: 1303.3551 · arxiv_version: 1303.3551v1 · doi: 10.48550/arxiv.1303.3551 · pith_short_12: GADXZAIZKEHH · pith_short_16: GADXZAIZKEHHKYGE · pith_short_8: GADXZAIZ

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/GADXZAIZKEHHKYGEILO7YSRHM3 \
  | 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: 30077c8119510e7560c442ddfc4a2766dc41d31247185ea34429a243c973c2f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e7a2b9cdefad53ab21b8c5b0a723bbc6d614ce73a7ad425f86707ffe5a568bf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-14T18:52:33Z",
    "title_canon_sha256": "8beed370727670926ad63843f6fcc1032ec22093301f138e1b950eab00459256"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.3551",
    "kind": "arxiv",
    "version": 1
  }
}