Pith Number

pith:JPVCUZW6

pith:2012:JPVCUZW6XJYX636N6A4WSNKPOR

not attested not anchored not stored refs pending

Signature Change in Noncommutative FRW Cosmology

Farhad Darabi, Hossein Motavalli, Taymaz Ghaneh

arxiv:1205.1037 v3 · 2012-05-04 · 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{JPVCUZW6XJYX636N6A4WSNKPOR}

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	2026-05-18T03:39:14.569764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bea2a66deba717f6fcdf03969354f747b49fb4946c44b2d3d183302c4d6c02a

Aliases

arxiv: 1205.1037 · arxiv_version: 1205.1037v3 · doi: 10.48550/arxiv.1205.1037 · pith_short_12: JPVCUZW6XJYX · pith_short_16: JPVCUZW6XJYX636N · pith_short_8: JPVCUZW6

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/JPVCUZW6XJYX636N6A4WSNKPOR \
  | 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: 4bea2a66deba717f6fcdf03969354f747b49fb4946c44b2d3d183302c4d6c02a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e9bddc628ee396042e0b5f0fbd0523f600ebf0322105ab336f0e514a3ec4a9c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-05-04T18:55:15Z",
    "title_canon_sha256": "c359305363a59bb0f6c5d9c0259f58e6b7e40a8c0746c5b589a2e50da870784c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.1037",
    "kind": "arxiv",
    "version": 3
  }
}