Pith Number

pith:VMHBHDDU

pith:2014:VMHBHDDUMZ5Z3M6LM46VBNIUTX

not attested not anchored not stored refs pending

Five-dimensional generalized $f(R)$ gravity with curvature-matter coupling

Cheng-Yuan Zhang, Jia-Wei Qiao, Jun-Wang Lu, Xue Zhang, Ya-Bo Wu, Yue-Yue Zhao

arxiv:1404.1681 v1 · 2014-04-07 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VMHBHDDUMZ5Z3M6LM46VBNIUTX}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:53:52.928561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab0e138c74667b9db3cb673d50b5149dfbcaa52b6e6f49dfcae04b75f75d7d63

Aliases

arxiv: 1404.1681 · arxiv_version: 1404.1681v1 · doi: 10.48550/arxiv.1404.1681 · pith_short_12: VMHBHDDUMZ5Z · pith_short_16: VMHBHDDUMZ5Z3M6L · pith_short_8: VMHBHDDU

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/VMHBHDDUMZ5Z3M6LM46VBNIUTX \
  | 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: ab0e138c74667b9db3cb673d50b5149dfbcaa52b6e6f49dfcae04b75f75d7d63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fca2c2e46d9a4c8b03a3e0e8e652181655c369b8c7731fe6255266ebb889bd7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-04-07T07:58:38Z",
    "title_canon_sha256": "774b06986b5641add3c30c19603682a263d249a93f408d6e23f570708a155210"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.1681",
    "kind": "arxiv",
    "version": 1
  }
}