Pith Number

pith:DYC7IHEM

pith:1996:DYC7IHEMLPEIA55MHEJDCTWUVR

not attested not anchored not stored refs pending

Detection of Strong Evolution in the Population of Early-Type Galaxies

Guinevere Kauffmann (MPA), Simon D.M. White (MPA), Stephane Charlot (IAP)

arxiv:astro-ph/9605136 v2 · 1996-05-22 · 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{DYC7IHEMLPEIA55MHEJDCTWUVR}

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	2026-05-18T01:12:44.005386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e05f41c8c5bc88077ac3912314ed4ac78b44a1c2ed7198aba5410ff5e80b388

Aliases

arxiv: astro-ph/9605136 · arxiv_version: astro-ph/9605136v2 · doi: 10.48550/arxiv.astro-ph/9605136 · pith_short_12: DYC7IHEMLPEI · pith_short_16: DYC7IHEMLPEIA55M · pith_short_8: DYC7IHEM

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/DYC7IHEMLPEIA55MHEJDCTWUVR \
  | 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: 1e05f41c8c5bc88077ac3912314ed4ac78b44a1c2ed7198aba5410ff5e80b388

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fac18e639fea2cece26774d6108c82e561bf5b4e99058f413c27a008496effdd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-05-22T14:20:18Z",
    "title_canon_sha256": "02d0cb5bfe75eff09e0b9a0587b967e2556b0ba84f1537b0272524844d49d703"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9605136",
    "kind": "arxiv",
    "version": 2
  }
}