Pith Number

pith:5TWJDD25

pith:2006:5TWJDD25SB5OQ74TP263VIOXPN

not attested not anchored not stored refs pending

Curvature scalar instability in f(R) gravity

Thomas P. Sotiriou

arxiv:gr-qc/0611107 v2 · 2006-11-20 · gr-qc · astro-ph · 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{5TWJDD25SB5OQ74TP263VIOXPN}

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.

Cited by

1 paper in Pith

Cosmological phase space of generalized hybrid metric-Palatini theories of gravity

Receipt and verification

First computed	2026-07-04T15:16:38.045935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ecec918f5d907ae87f937ebdbaa1d77b74521b68a0a02aa282b02c6a5ec7449e

Aliases

arxiv: gr-qc/0611107 · arxiv_version: gr-qc/0611107v2 · doi: 10.48550/arxiv.gr-qc/0611107 · pith_short_12: 5TWJDD25SB5O · pith_short_16: 5TWJDD25SB5OQ74T · pith_short_8: 5TWJDD25

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/5TWJDD25SB5OQ74TP263VIOXPN \
  | 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: ecec918f5d907ae87f937ebdbaa1d77b74521b68a0a02aa282b02c6a5ec7449e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e46ffa4a5f0b9468216119c91ff251831c3fd28fbb4b1bc8e7ca5bdafa5f8ad",
    "cross_cats_sorted": [
      "astro-ph",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2006-11-20T15:07:05Z",
    "title_canon_sha256": "5b03636643d33e1c3b6cf3ab236ba16d99133e9bcbaabdef77619865165d87c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0611107",
    "kind": "arxiv",
    "version": 2
  }
}