Pith Number

pith:L4WSPG5G

pith:2005:L4WSPG5G2BXZWRMRMTVOKWSG4U

not attested not anchored not stored refs pending

Cluster Evolution Since z~1

A. Rettura, A. W. Zirm, C. Lidman, G. K. Miley, H. C. Ford, J. P. Blakeslee, N. L. Homeier, P. Rosati, R. A. Overzier, R. Demarco, S. Mei

arxiv:astro-ph/0509575 v2 · 2005-09-20 · 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{L4WSPG5G2BXZWRMRMTVOKWSG4U}

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	2026-07-04T14:47:37.122179Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f2d279ba6d06f9b459164eae55a46e522b61ab8a617a568804485143e58a807

Aliases

arxiv: astro-ph/0509575 · arxiv_version: astro-ph/0509575v2 · doi: 10.48550/arxiv.astro-ph/0509575 · pith_short_12: L4WSPG5G2BXZ · pith_short_16: L4WSPG5G2BXZWRMR · pith_short_8: L4WSPG5G

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/L4WSPG5G2BXZWRMRMTVOKWSG4U \
  | 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: 5f2d279ba6d06f9b459164eae55a46e522b61ab8a617a568804485143e58a807

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1495f7f40192e68790f5935382c207ac0cf1c7ad142de95ce62c9dc0d7075314",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-09-20T03:46:44Z",
    "title_canon_sha256": "756a810c3863b11331f26f898c985018fd21a087119604ad53631d59e355401b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0509575",
    "kind": "arxiv",
    "version": 2
  }
}