Pith Number

pith:2W4WROVF

pith:2020:2W4WROVFW6D7G24GGEQS4HBOU5

not attested not anchored not stored refs pending

Strongest constraint in $f(R) = R+ \alpha R^2$ gravity: stellar stability

Juan M. Z. Pretel, Ribamar R. R. Reis, Sergio E. Jor\'as

arxiv:2008.00536 v2 · 2020-08-02 · 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{2W4WROVFW6D7G24GGEQS4HBOU5}

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

Radial oscillations of neutron stars in Starobinsky gravity and its Gauss-Bonnet extension

Receipt and verification

First computed	2026-07-05T01:55:12.538489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5b968baa5b787f36b8631212e1c2ea755d3aa30ced998c6837560e4618b90f9

Aliases

arxiv: 2008.00536 · arxiv_version: 2008.00536v2 · doi: 10.48550/arxiv.2008.00536 · pith_short_12: 2W4WROVFW6D7 · pith_short_16: 2W4WROVFW6D7G24G · pith_short_8: 2W4WROVF

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/2W4WROVFW6D7G24GGEQS4HBOU5 \
  | 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: d5b968baa5b787f36b8631212e1c2ea755d3aa30ced998c6837560e4618b90f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3074ea918efa44ccfe621401a7608e2108686d340b85d7bc5ac692255e98f115",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2020-08-02T18:36:42Z",
    "title_canon_sha256": "ad7db96f24aee55a257b4361b1bc9dbba86b737fd8fe9cb3c55766fc9cf648b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.00536",
    "kind": "arxiv",
    "version": 2
  }
}