Pith Number

pith:2ZBGQIX2

pith:2013:2ZBGQIX2QYO5YB6BJYZVWCJ3NG

not attested not anchored not stored refs pending

Constraining f(R) theories with cosmography

Florencia A. Teppa Pannia, Santiago E. Perez Bergliaffa

arxiv:1301.6140 v2 · 2013-01-25 · astro-ph.CO · 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{2ZBGQIX2QYO5YB6BJYZVWCJ3NG}

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

Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies

Receipt and verification

First computed	2026-05-18T03:12:48.364435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6426822fa861ddc07c14e335b093b69819ca35c0d89ebb4ad1c8ce51032412d

Aliases

arxiv: 1301.6140 · arxiv_version: 1301.6140v2 · doi: 10.48550/arxiv.1301.6140 · pith_short_12: 2ZBGQIX2QYO5 · pith_short_16: 2ZBGQIX2QYO5YB6B · pith_short_8: 2ZBGQIX2

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/2ZBGQIX2QYO5YB6BJYZVWCJ3NG \
  | 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: d6426822fa861ddc07c14e335b093b69819ca35c0d89ebb4ad1c8ce51032412d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0386bdbe536f6c50153877049252ba4ef84c7d9b9426bfb05aa3c8eafda78063",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-01-25T19:45:44Z",
    "title_canon_sha256": "ea7f0edab01ddf461d50250b9a6183122caa89c7e12e7dd6cf5cdaff6b14b688"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.6140",
    "kind": "arxiv",
    "version": 2
  }
}