Pith Number

pith:2XNKPQUI

pith:2018:2XNKPQUIUWH5J4YDKTHHY5JKML

not attested not anchored not stored refs pending

Casimir Effect and Free Fall in a Schwarzschild Black Hole

Francesco Sorge

arxiv:1807.03968 v1 · 2018-07-11 · 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{2XNKPQUIUWH5J4YDKTHHY5JKML}

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

Thermal Casimir Effect in A Schwarzschild-like Wormhole Spacetime

Receipt and verification

First computed	2026-05-18T00:10:58.466498Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5daa7c288a58fd4f30354ce7c752a62c23d5061bdbc07652dbcb13f34659bbb

Aliases

arxiv: 1807.03968 · arxiv_version: 1807.03968v1 · doi: 10.48550/arxiv.1807.03968 · pith_short_12: 2XNKPQUIUWH5 · pith_short_16: 2XNKPQUIUWH5J4YD · pith_short_8: 2XNKPQUI

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/2XNKPQUIUWH5J4YDKTHHY5JKML \
  | 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: d5daa7c288a58fd4f30354ce7c752a62c23d5061bdbc07652dbcb13f34659bbb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "967d049134392472cb749018e3ab2d4e11b29dd9603d8c48515d7003139c377c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-07-11T07:08:12Z",
    "title_canon_sha256": "7b50b8087d0b5ab01e8f81b0a1dfefa8bd1d238d59be8f5a903462921fb81c76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.03968",
    "kind": "arxiv",
    "version": 1
  }
}