Pith Number

pith:HWNTFQKR

pith:2015:HWNTFQKRKXYRBYXL4OSPIBXH6M

not attested not anchored not stored refs pending

Hybrid metric-Palatini gravity

Francisco S.N. Lobo, Gonzalo J. Olmo, Salvatore Capozziello, Tiberiu Harko, Tomi S. Koivisto

arxiv:1508.04641 v1 · 2015-08-19 · 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{HWNTFQKRKXYRBYXL4OSPIBXH6M}

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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

2 papers in Pith

Another Look at the Weak-Field Limit of Generalized Hybrid Metric-Palatini Gravity

Degenerate higher-order scalar-tensor theories in metric-affine gravity

Receipt and verification

First computed	2026-05-18T01:34:41.510554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d9b32c15155f110e2ebe3a4f406e7f3150e6770a902fc5c08275eab863003cd

Aliases

arxiv: 1508.04641 · arxiv_version: 1508.04641v1 · doi: 10.48550/arxiv.1508.04641 · pith_short_12: HWNTFQKRKXYR · pith_short_16: HWNTFQKRKXYRBYXL · pith_short_8: HWNTFQKR

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/HWNTFQKRKXYRBYXL4OSPIBXH6M \
  | 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: 3d9b32c15155f110e2ebe3a4f406e7f3150e6770a902fc5c08275eab863003cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7757c2220d97349e96e03b64fcae88eef6e72091bd8f16a839583c66bbf470e2",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-08-19T13:38:33Z",
    "title_canon_sha256": "120c7a57b1722a1896e701913e1189ef5279638b2ab573462cd3ea728f9f641b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.04641",
    "kind": "arxiv",
    "version": 1
  }
}