Pith Number

pith:FOPH2BXM

pith:2011:FOPH2BXM7A54IEF4E43BI4IY37

not attested not anchored not stored refs pending

Is the Universe homogeneous?

ICG Portsmouth), Roy Maartens (Western Cape

arxiv:1104.1300 v2 · 2011-04-07 · astro-ph.CO · gr-qc

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FOPH2BXM7A54IEF4E43BI4IY37}

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

The angular scale of homogeneity in the Local Universe with the SDSS blue galaxies

Receipt and verification

First computed	2026-05-18T02:22:10.571244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b9e7d06ecf83bc410bc2736147118dffe20769840eb576d757912f75458ef84

Aliases

arxiv: 1104.1300 · arxiv_version: 1104.1300v2 · doi: 10.48550/arxiv.1104.1300 · pith_short_12: FOPH2BXM7A54 · pith_short_16: FOPH2BXM7A54IEF4 · pith_short_8: FOPH2BXM

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/FOPH2BXM7A54IEF4E43BI4IY37 \
  | 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: 2b9e7d06ecf83bc410bc2736147118dffe20769840eb576d757912f75458ef84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbc15407d20954672e9fcac7c65e3f003d1d1249c3a479bd9801ff494d667cd3",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-04-07T11:07:23Z",
    "title_canon_sha256": "70a15b81b4f7a2703e052d78ae6e0b73e4cd8c43da56996a9890da95d46058be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.1300",
    "kind": "arxiv",
    "version": 2
  }
}