Pith Number

pith:BARFWXQ3

pith:2010:BARFWXQ3OH6PPZACCDU5XGYYEP

not attested not anchored not stored refs pending

Reconstructing f(R) modified gravity from ordinary and entropy-corrected versions of the holographic and new agegraphic dark energy models

K. Karami, M.S. Khaledian

arxiv:1004.1805 v3 · 2010-04-11 · 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{BARFWXQ3OH6PPZACCDU5XGYYEP}

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	2026-05-18T04:18:15.364977Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08225b5e1b71fcf7e40210e9db9b1823e7eb61331a827dc7c13fd8da9897e5cb

Aliases

arxiv: 1004.1805 · arxiv_version: 1004.1805v3 · doi: 10.48550/arxiv.1004.1805 · pith_short_12: BARFWXQ3OH6P · pith_short_16: BARFWXQ3OH6PPZAC · pith_short_8: BARFWXQ3

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/BARFWXQ3OH6PPZACCDU5XGYYEP \
  | 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: 08225b5e1b71fcf7e40210e9db9b1823e7eb61331a827dc7c13fd8da9897e5cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22e76fd210261581ec89d131069cfd1714076ddb208b5d7140c259df51a01d59",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-04-11T12:57:36Z",
    "title_canon_sha256": "6ed5cd25480b591e3b7c16a0059c2c33bb30eb2f09a62a6c82514a6eff250f2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.1805",
    "kind": "arxiv",
    "version": 3
  }
}