Pith Number

pith:OUU5H475

pith:2007:OUU5H475VFTMOSMVF3L7S4JRCZ

not attested not anchored not stored refs pending

The Evolution of the Field and Cluster Morphology-Density Relation for Mass-Selected Samples of Galaxies

A. van der Wel, B. P. Holden, D. D. Kelson, G. D. Illingworth, H. C. Ford, I. Labbe, J. P. Blakeslee, M. Franx, M. P. Postman, S. Wuyts

arxiv:0707.2787 v2 · 2007-07-18 · 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{OUU5H475VFTMOSMVF3L7S4JRCZ}

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.

Cited by

1 paper in Pith

Mapping Nearby Galaxies with Apache Point Observatory: Group and field galaxies' morphologies in the colour-magnitude plane

Receipt and verification

First computed	2026-07-04T17:04:45.034056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7529d3f3fda966c749952ed7f9713116563d272250a7510cefaf799d7acc8224

Aliases

arxiv: 0707.2787 · arxiv_version: 0707.2787v2 · doi: 10.48550/arxiv.0707.2787 · pith_short_12: OUU5H475VFTM · pith_short_16: OUU5H475VFTMOSMV · pith_short_8: OUU5H475

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/OUU5H475VFTMOSMVF3L7S4JRCZ \
  | 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: 7529d3f3fda966c749952ed7f9713116563d272250a7510cefaf799d7acc8224

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb6e1fe649aed499d23db80ae1c201e10d56d13ce7d9edfeafcb383760052a75",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-07-18T19:11:29Z",
    "title_canon_sha256": "e59f899c349563766495fa85f7e4c31eaa28057364278ad471f697cd1ff4f2a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0707.2787",
    "kind": "arxiv",
    "version": 2
  }
}