Pith Number

pith:XEIKJXUO

pith:2009:XEIKJXUOZ33WWP3JFPDDG5L4ED

not attested not anchored not stored refs pending

General Relativistic Singularity-Free Cosmological Model

Marcelo Samuel Berman

arxiv:0904.3141 v2 · 2009-04-20 · physics.gen-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{XEIKJXUOZ33WWP3JFPDDG5L4ED}

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	2026-05-18T04:33:36.549964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b910a4de8ecef76b3f692bc633757c20e32250f9ed71c0efb76c4de04b561d1b

Aliases

arxiv: 0904.3141 · arxiv_version: 0904.3141v2 · doi: 10.48550/arxiv.0904.3141 · pith_short_12: XEIKJXUOZ33W · pith_short_16: XEIKJXUOZ33WWP3J · pith_short_8: XEIKJXUO

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/XEIKJXUOZ33WWP3JFPDDG5L4ED \
  | 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: b910a4de8ecef76b3f692bc633757c20e32250f9ed71c0efb76c4de04b561d1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "151727b3b26427467831804a963bead9e457cb2498edb3d67046018544dc341b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2009-04-20T23:45:56Z",
    "title_canon_sha256": "d02425ffa5a028cec0334bd8281ea43f47133a70989bb129cd4ac388fdc08095"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.3141",
    "kind": "arxiv",
    "version": 2
  }
}