Pith Number

pith:QITLQFDK

pith:2013:QITLQFDKX2S5K2FWRP5M5BVACW

not attested not anchored not stored refs pending

Einstein gravity with Gauss-Bonnet entropic corrections

Guido Cognola, Lorenzo Sebastiani, Ratbay Myrzakulov, Sergio Zerbini

arxiv:1304.1878 v2 · 2013-04-06 · 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{QITLQFDKX2S5K2FWRP5M5BVACW}

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	2026-05-18T03:10:36.905846Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8226b8146abea5d568b68bface86a015994dbd7cafd498e7954fffbbbcb16f2d

Aliases

arxiv: 1304.1878 · arxiv_version: 1304.1878v2 · doi: 10.48550/arxiv.1304.1878 · pith_short_12: QITLQFDKX2S5 · pith_short_16: QITLQFDKX2S5K2FW · pith_short_8: QITLQFDK

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/QITLQFDKX2S5K2FWRP5M5BVACW \
  | 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: 8226b8146abea5d568b68bface86a015994dbd7cafd498e7954fffbbbcb16f2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86ca23a4ac783905d393de0d587f71e553fd2ebf573722edf8ea6da912475b08",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-04-06T11:36:59Z",
    "title_canon_sha256": "34d65211b289736d63c5ba5b14022573e477fa60a932587888eaded2fbbb3e55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1878",
    "kind": "arxiv",
    "version": 2
  }
}