Pith Number

pith:NIN63GSF

pith:2015:NIN63GSF7O3UAJL4X7KI7SRXMD

not attested not anchored not stored refs pending

A flow equation for f(R) gravity and some of its exact solutions

Gian Paolo Vacca, Nobuyoshi Ohta, Roberto Percacci

arxiv:1507.00968 v2 · 2015-07-03 · hep-th · gr-qc

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NIN63GSF7O3UAJL4X7KI7SRXMD}

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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

1 paper in Pith

Proper-time functional renormalization in $O(N)$ scalar models coupled to gravity

Receipt and verification

First computed	2026-05-18T01:32:59.968101Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a1bed9a45fbb740257cbfd48fca3760e3b8f5988aff2909f1eb6383cef92019

Aliases

arxiv: 1507.00968 · arxiv_version: 1507.00968v2 · doi: 10.48550/arxiv.1507.00968 · pith_short_12: NIN63GSF7O3U · pith_short_16: NIN63GSF7O3UAJL4 · pith_short_8: NIN63GSF

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/NIN63GSF7O3UAJL4X7KI7SRXMD \
  | 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: 6a1bed9a45fbb740257cbfd48fca3760e3b8f5988aff2909f1eb6383cef92019

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4de3dd4804196bfc32fd4d9b292d7731acc71e66b4365d7ad2acd5e2a86daa1",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2015-07-03T16:56:56Z",
    "title_canon_sha256": "f3475e83ddfbd02eb79dd55e8a8f9c646bfc04ae6baeb7266275a05e29540dd4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.00968",
    "kind": "arxiv",
    "version": 2
  }
}