Pith Number

pith:EGF43LSO

pith:2019:EGF43LSOWJLRTWJ53ZYDAEW2SJ

not attested not anchored not stored refs pending

Linear and Second-order Geometry Perturbations on Spacetimes with Torsion

Eduardo Rodr\'iguez, Fernando Izaurieta, Omar Valdivia

arxiv:1901.06400 v2 · 2019-01-18 · gr-qc · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EGF43LSOWJLRTWJ53ZYDAEW2SJ}

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	2026-05-17T23:47:26.539903Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

218bcdae4eb25719d93dde703012da926c79fa8a742daf90c9c7eef173dfe5ef

Aliases

arxiv: 1901.06400 · arxiv_version: 1901.06400v2 · doi: 10.48550/arxiv.1901.06400 · pith_short_12: EGF43LSOWJLR · pith_short_16: EGF43LSOWJLRTWJ5 · pith_short_8: EGF43LSO

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/EGF43LSOWJLRTWJ53ZYDAEW2SJ \
  | 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: 218bcdae4eb25719d93dde703012da926c79fa8a742daf90c9c7eef173dfe5ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3964fe7d5893c5a21969dadd6c89e3d35871e3f22138a9a6b39e68aff4f48ec",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-01-18T19:36:02Z",
    "title_canon_sha256": "43cea5083812d0097360839ab9644af66a27950b751dbf913bdec7ab8a8feca3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.06400",
    "kind": "arxiv",
    "version": 2
  }
}