Pith Number

pith:IU7RK3FG

pith:2014:IU7RK3FGKAQ54PTVIRDYUVYGOB

not attested not anchored not stored refs pending

Friedmann cosmology with particle creation in modified $f(R,T)$ gravity

C.P.Singh, Vijay Singh

arxiv:1408.0633 v2 · 2014-08-04 · 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{IU7RK3FGKAQ54PTVIRDYUVYGOB}

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	2026-05-18T02:44:25.372780Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

453f156ca65021de3e7544478a5706706840a308b53688dcb55f4bfa294a389c

Aliases

arxiv: 1408.0633 · arxiv_version: 1408.0633v2 · doi: 10.48550/arxiv.1408.0633 · pith_short_12: IU7RK3FGKAQ5 · pith_short_16: IU7RK3FGKAQ54PTV · pith_short_8: IU7RK3FG

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/IU7RK3FGKAQ54PTVIRDYUVYGOB \
  | 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: 453f156ca65021de3e7544478a5706706840a308b53688dcb55f4bfa294a389c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b619df791ac828fa261b0311582fa71d7ac8ef7a09962652875e13816351150",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-08-04T10:25:38Z",
    "title_canon_sha256": "64bc2f73e75afc650f1dce86353c2ab22db3679d1d419a76875abe196c5801df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.0633",
    "kind": "arxiv",
    "version": 2
  }
}