Pith Number

pith:FS4DIRLC

pith:2020:FS4DIRLCCCMZOEYGTNOPXN2GQ4

not attested not anchored not stored refs pending

The cosmological principle in theories with torsion: The case of Einstein-Cartan-Dirac-Maxwell gravity

Diego Rubiera-Garcia, Francisco Cabral, Francisco S. N. Lobo

arxiv:2004.13693 v2 · 2020-04-28 · 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{FS4DIRLCCCMZOEYGTNOPXN2GQ4}

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.

Cited by

1 paper in Pith

Friedmann cosmology with hyperfluids

Receipt and verification

First computed	2026-07-05T01:48:09.215892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2cb834456210999713069b5cfbb746870a1545f4724b60a5278bd38208c8f949

Aliases

arxiv: 2004.13693 · arxiv_version: 2004.13693v2 · doi: 10.48550/arxiv.2004.13693 · pith_short_12: FS4DIRLCCCMZ · pith_short_16: FS4DIRLCCCMZOEYG · pith_short_8: FS4DIRLC

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/FS4DIRLCCCMZOEYGTNOPXN2GQ4 \
  | 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: 2cb834456210999713069b5cfbb746870a1545f4724b60a5278bd38208c8f949

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e97deb35ec8b2f6416a22aeb6c61ae626820470f65cf31633c95eea07e7452f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2020-04-28T17:49:46Z",
    "title_canon_sha256": "2d9c12001dd0d03d801ce223d1f476aca396c53a56dbdba6d745746591be1d42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.13693",
    "kind": "arxiv",
    "version": 2
  }
}