Pith Number

pith:7HWPMKQK

pith:2010:7HWPMKQKLMZZN6O2K5DZXLCTCW

not attested not anchored not stored refs pending

On the Viability of a Non-Analytical f(R)-Theory

Giovanni Montani, Massimiliano Lattanzi, Nakia Carlevaro

arxiv:1007.5397 v3 · 2010-07-30 · 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{7HWPMKQKLMZZN6O2K5DZXLCTCW}

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	2026-05-18T02:06:00.931085Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9ecf62a0a5b3396f9da57479bac531594addbcf71d2fcf96b841321a9ad8308

Aliases

arxiv: 1007.5397 · arxiv_version: 1007.5397v3 · doi: 10.48550/arxiv.1007.5397 · pith_short_12: 7HWPMKQKLMZZ · pith_short_16: 7HWPMKQKLMZZN6O2 · pith_short_8: 7HWPMKQK

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/7HWPMKQKLMZZN6O2K5DZXLCTCW \
  | 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: f9ecf62a0a5b3396f9da57479bac531594addbcf71d2fcf96b841321a9ad8308

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6caafbf944c6cf2c4eb8a1ef121bf8a2aae8152dcf1c8b0b9fd91d8ac50534c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-07-30T09:44:29Z",
    "title_canon_sha256": "c926765b8bdfd08e530e1389e5d55e780db6868caee57f9c843b0600e5360577"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.5397",
    "kind": "arxiv",
    "version": 3
  }
}