Pith Number

pith:YKZM44PL

pith:2021:YKZM44PLZGXQSQEYFVSG3RYTE5

not attested not anchored not stored refs pending

Cosmological aspects of $f(R,T)$ gravity in a simple model with a parametrization of $q$

Ritika Nagpal, Shibesh Kumar Jas Pacif

arxiv:2108.06077 v1 · 2021-08-13 · 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{YKZM44PLZGXQSQEYFVSG3RYTE5}

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	2026-07-05T04:35:56.754700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2b2ce71ebc9af0940982d646dc713276a4ed3175ebe17882e39602327a3cbef

Aliases

arxiv: 2108.06077 · arxiv_version: 2108.06077v1 · doi: 10.48550/arxiv.2108.06077 · pith_short_12: YKZM44PLZGXQ · pith_short_16: YKZM44PLZGXQSQEY · pith_short_8: YKZM44PL

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/YKZM44PLZGXQSQEYFVSG3RYTE5 \
  | 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: c2b2ce71ebc9af0940982d646dc713276a4ed3175ebe17882e39602327a3cbef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b45e7ab25d72d4ffd38cff814e429a229d65fd96f7e6a52c47a4b635fb9908a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-08-13T06:13:41Z",
    "title_canon_sha256": "e7b2d7af8c545424dc53c11b4266c5f99c30425f0dbac761ad63c9f097c3908a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.06077",
    "kind": "arxiv",
    "version": 1
  }
}