Pith Number

pith:S5PMY3AW

pith:2013:S5PMY3AWBIUJNP5XBWKFH6EW7L

not attested not anchored not stored refs pending

Einstein-Cartan gravitational collapse of a homogeneous Weyssenhoff fluid

Amir Hadi Ziaie, Arash Ranjbar, Hamid Reza Sepangi, Paulo Vargas Moniz

arxiv:1305.3085 v4 · 2013-05-14 · gr-qc · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S5PMY3AWBIUJNP5XBWKFH6EW7L}

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	2026-05-18T00:46:17.068240Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

975ecc6c160a2896bfb70d9453f896faf8c6d7ddb586321764bf48cefc879d15

Aliases

arxiv: 1305.3085 · arxiv_version: 1305.3085v4 · doi: 10.48550/arxiv.1305.3085 · pith_short_12: S5PMY3AWBIUJ · pith_short_16: S5PMY3AWBIUJNP5X · pith_short_8: S5PMY3AW

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/S5PMY3AWBIUJNP5XBWKFH6EW7L \
  | 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: 975ecc6c160a2896bfb70d9453f896faf8c6d7ddb586321764bf48cefc879d15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2f6fc71d177c9c2dd96b1ad85f5064745b6e3ee4363b0e91e014cb56f49d9dc",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-05-14T09:57:25Z",
    "title_canon_sha256": "c7d1b1a2196fe6c9ea9c5ca7e1107fa3e9cae5c690e860b8bf2c7a33c9a90017"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.3085",
    "kind": "arxiv",
    "version": 4
  }
}