Pith Number

pith:72ATLLLD

pith:2013:72ATLLLDWYK3R6QNUF43VMIBFR

not attested not anchored not stored refs pending

Cosmological dynamics of $f(R)$ gravity scalar degree of freedom in Einstein frame

Kabita Deka, Umananda Dev Goswami

arxiv:1303.5868 v2 · 2013-03-23 · 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{72ATLLLDWYK3R6QNUF43VMIBFR}

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	2026-05-18T03:15:07.517159Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe8135ad63b615b8fa0da179bab1012c70a52147dc44e325b51e7c2c5425b883

Aliases

arxiv: 1303.5868 · arxiv_version: 1303.5868v2 · doi: 10.48550/arxiv.1303.5868 · pith_short_12: 72ATLLLDWYK3 · pith_short_16: 72ATLLLDWYK3R6QN · pith_short_8: 72ATLLLD

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/72ATLLLDWYK3R6QNUF43VMIBFR \
  | 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: fe8135ad63b615b8fa0da179bab1012c70a52147dc44e325b51e7c2c5425b883

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "800f6383d41e2ba8eceb568068fe10c0de0e5d5f027e5f8b09738e6bf24d8cbd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-03-23T17:44:30Z",
    "title_canon_sha256": "cdeb61127357141a4afc2c014b5b97e1a0118fbd75c1e1d175187a92f6d7f7a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.5868",
    "kind": "arxiv",
    "version": 2
  }
}