Pith Number

pith:DRBJXSI4

pith:1999:DRBJXSI42I2OBTRTCSDXQHPOYB

not attested not anchored not stored refs pending

Undermining the Cosmological Principle: Almost Isotropic Observations in Inhomogeneous Cosmologies

C. A. Clarkson, R. K. Barrett

arxiv:astro-ph/9911235 v3 · 1999-11-12 · 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{DRBJXSI42I2OBTRTCSDXQHPOYB}

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	2026-07-04T16:11:54.184698Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c429bc91cd234e0ce331487781deec07a1b5031c937d208ee78469b3b224409

Aliases

arxiv: astro-ph/9911235 · arxiv_version: astro-ph/9911235v3 · doi: 10.48550/arxiv.astro-ph/9911235 · pith_short_12: DRBJXSI42I2O · pith_short_16: DRBJXSI42I2OBTRT · pith_short_8: DRBJXSI4

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/DRBJXSI42I2OBTRTCSDXQHPOYB \
  | 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: 1c429bc91cd234e0ce331487781deec07a1b5031c937d208ee78469b3b224409

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5797e018a54cf21cae5af8aa3af67ae0ee2c6fb9295c6f102bc503231836614",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-11-12T23:42:48Z",
    "title_canon_sha256": "c8cce14a703b30afb924950da7192e56b6454870a3ee9d41ab6bed67bb5db08a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9911235",
    "kind": "arxiv",
    "version": 3
  }
}