Pith Number

pith:NHBVFWMT

pith:2021:NHBVFWMT4SUBQOQ7BQAD7MLKBW

not attested not anchored not stored refs pending

The gravitational field of a star in quadratic gravity

Alfio Bonanno, Samuele Silveravalle

arxiv:2106.00558 v2 · 2021-06-01 · gr-qc · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NHBVFWMT4SUBQOQ7BQAD7MLKBW}

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	2026-07-05T03:08:46.041938Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69c352d993e4a8183a1f0c003fb16a0d84819c05c6fd308caf0e39d62c5d6061

Aliases

arxiv: 2106.00558 · arxiv_version: 2106.00558v2 · doi: 10.48550/arxiv.2106.00558 · pith_short_12: NHBVFWMT4SUB · pith_short_16: NHBVFWMT4SUBQOQ7 · pith_short_8: NHBVFWMT

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/NHBVFWMT4SUBQOQ7BQAD7MLKBW \
  | 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: 69c352d993e4a8183a1f0c003fb16a0d84819c05c6fd308caf0e39d62c5d6061

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9be817ed19a4836b1147c956a143d1f74bb79e61b57cb8fc8aba737445e6cfdb",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-06-01T15:18:09Z",
    "title_canon_sha256": "be223fdb89a4b0887406eb1fb0b7626531a123c2e229411224368d98e2563e46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.00558",
    "kind": "arxiv",
    "version": 2
  }
}