Pith Number

pith:XX7K5VS7

pith:2017:XX7K5VS7XBF7JROC5SLEUDMWME

not attested not anchored not stored refs pending

Equivalent and inequivalent canonical structures of higher order theories of gravity

Abhik Kumar Sanyal, Ranajit Mandal

arxiv:1709.05201 v3 · 2017-09-15 · 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{XX7K5VS7XBF7JROC5SLEUDMWME}

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

The role of cosmological constant in f(R, G) gravity

Receipt and verification

First computed	2026-05-18T00:08:03.349588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bdfeaed65fb84bf4c5c2ec964a0d966122bbe4f1205388a7e1f7878c76727261

Aliases

arxiv: 1709.05201 · arxiv_version: 1709.05201v3 · doi: 10.48550/arxiv.1709.05201 · pith_short_12: XX7K5VS7XBF7 · pith_short_16: XX7K5VS7XBF7JROC · pith_short_8: XX7K5VS7

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/XX7K5VS7XBF7JROC5SLEUDMWME \
  | 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: bdfeaed65fb84bf4c5c2ec964a0d966122bbe4f1205388a7e1f7878c76727261

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1f2a5efc2f80d8d773f1bafbbfe676ca55efff6d211f144d6f84a4a3dfe4efa",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-09-15T13:42:04Z",
    "title_canon_sha256": "57ad6a2bc6f7e22e4b4450549402a27f3c9f7302b90f178191953b9190fb59d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.05201",
    "kind": "arxiv",
    "version": 3
  }
}