Pith Number

pith:EHZS76GI

pith:2015:EHZS76GIW6EPNX7XAYCAMU67J3

not attested not anchored not stored refs pending

Gauss Bonnet dark energy Chaplygin Gas Model

A. Alaei, A. Khodam-Mohammadi, E. Karimkhani

arxiv:1502.07832 v2 · 2015-02-27 · 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{EHZS76GIW6EPNX7XAYCAMU67J3}

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	2026-05-18T00:59:49.426241Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21f32ff8c8b788f6dff706040653df4edd9ec20c3a952abac91adceb2e377eda

Aliases

arxiv: 1502.07832 · arxiv_version: 1502.07832v2 · doi: 10.48550/arxiv.1502.07832 · pith_short_12: EHZS76GIW6EP · pith_short_16: EHZS76GIW6EPNX7X · pith_short_8: EHZS76GI

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/EHZS76GIW6EPNX7XAYCAMU67J3 \
  | 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: 21f32ff8c8b788f6dff706040653df4edd9ec20c3a952abac91adceb2e377eda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da1ead95991159fc89f94018b93c35bca7602877e4be422544fd0abfa5d72b0d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-02-27T09:05:49Z",
    "title_canon_sha256": "c2cd67232316b36b6d017334ecff9069b8b7b00da9ef8640486e8fcd4f95a7d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.07832",
    "kind": "arxiv",
    "version": 2
  }
}