Pith Number

pith:XRPTXRVH

pith:2013:XRPTXRVHOWG6A3ODOVWCW7K5HZ

not attested not anchored not stored refs pending

Gravitational collapse in spatially isotropic coordinates

Megan Govender, Ranjan Sharma, Robert Bogadi, Shyam Das

arxiv:1312.2906 v1 · 2013-12-09 · 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{XRPTXRVHOWG6A3ODOVWCW7K5HZ}

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	2026-05-18T00:30:22.885870Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc5f3bc6a7758de06dc3756c2b7d5d3e5855acb9c50b74a19f9abf94a187adff

Aliases

arxiv: 1312.2906 · arxiv_version: 1312.2906v1 · doi: 10.48550/arxiv.1312.2906 · pith_short_12: XRPTXRVHOWG6 · pith_short_16: XRPTXRVHOWG6A3OD · pith_short_8: XRPTXRVH

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/XRPTXRVHOWG6A3ODOVWCW7K5HZ \
  | 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: bc5f3bc6a7758de06dc3756c2b7d5d3e5855acb9c50b74a19f9abf94a187adff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "009e128b633303c14e2cfa1f47ce8f13de618a2f74a4c6748dfd693643eb07cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-12-09T06:24:40Z",
    "title_canon_sha256": "fb4d23e5911298b5d1e1ce7fc7959628c3f6b1580caccae5492e53f2fda09319"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.2906",
    "kind": "arxiv",
    "version": 1
  }
}