Pith Number

pith:RS4ZI6BB

pith:2009:RS4ZI6BBINCE6APFT2X5ZCUD2B

not attested not anchored not stored refs pending

Individual and Group Galaxies in CNOC1 clusters

E. Ellingson, H.K.C. Yee, I.H. Li

arxiv:0904.0831 v1 · 2009-04-06 · astro-ph.CO · 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{RS4ZI6BBINCE6APFT2X5ZCUD2B}

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	2026-05-18T04:29:43.762529Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8cb994782143444f01e59eafdc8a83d07c50966abf7f9e25bfe2405cc93b5759

Aliases

arxiv: 0904.0831 · arxiv_version: 0904.0831v1 · doi: 10.48550/arxiv.0904.0831 · pith_short_12: RS4ZI6BBINCE · pith_short_16: RS4ZI6BBINCE6APF · pith_short_8: RS4ZI6BB

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/RS4ZI6BBINCE6APFT2X5ZCUD2B \
  | 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: 8cb994782143444f01e59eafdc8a83d07c50966abf7f9e25bfe2405cc93b5759

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1b12a899ed0ad27c8b784215e2429f735e702639575d981f5ea2be85609b7cf",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-04-06T01:53:22Z",
    "title_canon_sha256": "c6e2f85cd984a539759d5e7e6941cc3602526fe3b706abf56803e0d480429044"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0831",
    "kind": "arxiv",
    "version": 1
  }
}