Pith Number

pith:G4D3TPS7

pith:2014:G4D3TPS7CVNA3IRDZOO7EAMKMT

not attested not anchored not stored refs pending

On f(R) gravity

Ahmed Alhamzawi, Rahim Alhamzawi

arxiv:1406.4090 v2 · 2014-06-16 · 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{G4D3TPS7CVNA3IRDZOO7EAMKMT}

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	2026-05-18T02:49:38.308062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3707b9be5f155a0da223cb9df2018a64d2b170eab325ccd34dc8ebe2d60689f1

Aliases

arxiv: 1406.4090 · arxiv_version: 1406.4090v2 · doi: 10.48550/arxiv.1406.4090 · pith_short_12: G4D3TPS7CVNA · pith_short_16: G4D3TPS7CVNA3IRD · pith_short_8: G4D3TPS7

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/G4D3TPS7CVNA3IRDZOO7EAMKMT \
  | 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: 3707b9be5f155a0da223cb9df2018a64d2b170eab325ccd34dc8ebe2d60689f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5604bd4c07fc2749339512fda0fefe21c1fc3d2c4b2ce7b49cd143be02d03906",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-06-16T18:22:26Z",
    "title_canon_sha256": "75116eaa4dd5fdad2ff758a8365ac8ca7c23a2472d1a936d6746f064f06261e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.4090",
    "kind": "arxiv",
    "version": 2
  }
}