Pith Number

pith:CWL3HVSW

pith:2019:CWL3HVSWP5N2DN2TWJSXD7PC6V

not attested not anchored not stored refs pending

A note on geodesics in inhomogeneous expanding spacetimes

Daniela P\'erez, Eduardo Guti\'errez, Gustavo E. Romero, Luciano E. Combi

arxiv:1901.09770 v1 · 2019-01-28 · gr-qc · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CWL3HVSWP5N2DN2TWJSXD7PC6V}

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	2026-05-17T23:55:23.909967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1597b3d6567f5ba1b753b26571fde2f56cdee112bd22cfb3af598b790f341f50

Aliases

arxiv: 1901.09770 · arxiv_version: 1901.09770v1 · doi: 10.48550/arxiv.1901.09770 · pith_short_12: CWL3HVSWP5N2 · pith_short_16: CWL3HVSWP5N2DN2T · pith_short_8: CWL3HVSW

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/CWL3HVSWP5N2DN2TWJSXD7PC6V \
  | 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: 1597b3d6567f5ba1b753b26571fde2f56cdee112bd22cfb3af598b790f341f50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ceb9c39d390a5a64545da2e738236871160565e038e94ab144223f01e64f4922",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-01-28T16:17:17Z",
    "title_canon_sha256": "58cc6e4646807856d90e78ded30eba04b958caeb5ccf0e1022c77d66a92c9cd8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.09770",
    "kind": "arxiv",
    "version": 1
  }
}