Pith Number

pith:4WYQUATQ

pith:2018:4WYQUATQ7EQE5LPDSYX4SBTO3M

not attested not anchored not stored refs pending

Stability of Einstein static universe in gravity theory with a non-minimal derivative coupling

Hongwei Yu, Puxun Wu, Qihong Huang

arxiv:1801.04358 v2 · 2018-01-13 · 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{4WYQUATQ7EQE5LPDSYX4SBTO3M}

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	2026-05-18T00:23:27.553551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5b10a0270f9204eade3962fc9066edb37b014557744b8d31684fb73fc959ec9

Aliases

arxiv: 1801.04358 · arxiv_version: 1801.04358v2 · doi: 10.48550/arxiv.1801.04358 · pith_short_12: 4WYQUATQ7EQE · pith_short_16: 4WYQUATQ7EQE5LPD · pith_short_8: 4WYQUATQ

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/4WYQUATQ7EQE5LPDSYX4SBTO3M \
  | 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: e5b10a0270f9204eade3962fc9066edb37b014557744b8d31684fb73fc959ec9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9cf5cc00e63e92c20ba6cebb2a095cdb02fe2cf766c1f701016fab17d7279dae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-01-13T01:06:13Z",
    "title_canon_sha256": "3af14e903bff5cfd2a640f2873b822a575d03c4ff31fdb8625ef877ae3f4458f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.04358",
    "kind": "arxiv",
    "version": 2
  }
}