Pith Number

pith:MTMDGQOE

pith:2018:MTMDGQOEDDX2W2MPAMD6E3KKCW

not attested not anchored not stored refs pending

Gauss-Bonnet Gravity in $D=4$ Without Gauss-Bonnet Coupling to Matter - Cosmological Implications

Eduardo Guendelman, Emil Nissimov, Svetlana Pacheva

arxiv:1809.00321 v3 · 2018-09-02 · 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{MTMDGQOEDDX2W2MPAMD6E3KKCW}

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	2026-05-17T23:50:24.131205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64d83341c418efab698f0307e26d4a15ac664ee6ede7b5c5f8233083038f475a

Aliases

arxiv: 1809.00321 · arxiv_version: 1809.00321v3 · doi: 10.48550/arxiv.1809.00321 · pith_short_12: MTMDGQOEDDX2 · pith_short_16: MTMDGQOEDDX2W2MP · pith_short_8: MTMDGQOE

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/MTMDGQOEDDX2W2MPAMD6E3KKCW \
  | 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: 64d83341c418efab698f0307e26d4a15ac664ee6ede7b5c5f8233083038f475a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "502e196066e85ec228f3495703e22275372f829532d908f01c6985519ea22350",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-09-02T09:54:50Z",
    "title_canon_sha256": "7ab719d89c685833e87f19e9468e8adc613e77b0dac374b098cc314656e87433"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.00321",
    "kind": "arxiv",
    "version": 3
  }
}