Pith Number

pith:PFUUPWV3

pith:2009:PFUUPWV3MPS3YX622GPP5NI5U6

not attested not anchored not stored refs pending

The UV-optical colours of brightest cluster galaxies in optically and X-ray selected clusters

Anja von der Linden, Guinevere Kauffmann, Jing Wang, Roderik Overzier, Xu Kong

arxiv:0909.1196 v2 · 2009-09-07 · astro-ph.GA · 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{PFUUPWV3MPS3YX622GPP5NI5U6}

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	2026-05-18T04:26:32.003248Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

796947dabb63e5bc5fdad19efeb51da78f021a6eb5634391cad3c5b82444b874

Aliases

arxiv: 0909.1196 · arxiv_version: 0909.1196v2 · doi: 10.48550/arxiv.0909.1196 · pith_short_12: PFUUPWV3MPS3 · pith_short_16: PFUUPWV3MPS3YX62 · pith_short_8: PFUUPWV3

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/PFUUPWV3MPS3YX622GPP5NI5U6 \
  | 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: 796947dabb63e5bc5fdad19efeb51da78f021a6eb5634391cad3c5b82444b874

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ace06e284ea4f87c109bde09525c47a38c6f7ff5e9ad7c2246995998699920fc",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-09-07T10:13:45Z",
    "title_canon_sha256": "7b431f519e95ab90867bffdbcd1078196a989ec31a69b8b9fbe2e22056746d41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.1196",
    "kind": "arxiv",
    "version": 2
  }
}