Pith Number

pith:WDKSIYDN

pith:2013:WDKSIYDN7H36VOL63533JAKE3G

not attested not anchored not stored refs pending

Spherically symmetric cosmological spacetimes with dust and radiation - numerical implementation

Chris Clarkson, Marco Regis, Woei Chet Lim

arxiv:1308.0902 v2 · 2013-08-05 · 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{WDKSIYDN7H36VOL63533JAKE3G}

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	2026-05-18T02:56:32.569538Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0d524606df9f7eab97edf77b48144d9ade6e4f25a36219d8cf9dc1645650948

Aliases

arxiv: 1308.0902 · arxiv_version: 1308.0902v2 · doi: 10.48550/arxiv.1308.0902 · pith_short_12: WDKSIYDN7H36 · pith_short_16: WDKSIYDN7H36VOL6 · pith_short_8: WDKSIYDN

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/WDKSIYDN7H36VOL63533JAKE3G \
  | 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: b0d524606df9f7eab97edf77b48144d9ade6e4f25a36219d8cf9dc1645650948

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4ec04a4f2956782b3d6e6f046ee674c9b8573b696da862d0e4a80963547d9dd",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-08-05T08:33:37Z",
    "title_canon_sha256": "0c601317326880be44f23ca44de927387538d76d18bcacfd2a8b9abbe5b10b4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.0902",
    "kind": "arxiv",
    "version": 2
  }
}