Pith Number

pith:ZNH2JQGC

pith:2016:ZNH2JQGCD4P4BGDN35QKF4L6IO

not attested not anchored not stored refs pending

Vector dark energy models with quadratic terms in the Maxwell tensor derivatives

Hamid Reza Sepangi, Shahab Shahidi, Tiberiu Harko, Zahra Haghani

arxiv:1604.04837 v3 · 2016-04-17 · gr-qc · astro-ph.CO · 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{ZNH2JQGCD4P4BGDN35QKF4L6IO}

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	2026-05-18T00:38:31.341806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb4fa4c0c21f1fc0986ddf60a2f17e43855720abca8cdfa92e284f992455303b

Aliases

arxiv: 1604.04837 · arxiv_version: 1604.04837v3 · doi: 10.48550/arxiv.1604.04837 · pith_short_12: ZNH2JQGCD4P4 · pith_short_16: ZNH2JQGCD4P4BGDN · pith_short_8: ZNH2JQGC

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/ZNH2JQGCD4P4BGDN35QKF4L6IO \
  | 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: cb4fa4c0c21f1fc0986ddf60a2f17e43855720abca8cdfa92e284f992455303b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86b99c831fdab4b7d85a4f1d21d5ff1b71589071c5acf6c53eb1d959e55ac645",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2016-04-17T07:30:24Z",
    "title_canon_sha256": "e66ddb14b19868260d9f522c614d3f4d54725efc4c57293f970f140f0c868fa2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.04837",
    "kind": "arxiv",
    "version": 3
  }
}