Pith Number

pith:76G5XESR

pith:2009:76G5XESRD5EH4FK37U7YZV2L6H

not attested not anchored not stored refs pending

Casimir apparatuses in a weak gravitational field

Enrico Calloni, George M. Napolitano, Giampiero Esposito, Giuseppe Bimonte, Luigi Rosa

arxiv:0904.4864 v1 · 2009-04-30 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{76G5XESRD5EH4FK37U7YZV2L6H}

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	2026-05-18T04:39:16.945440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff8ddb92511f487e155bfd3f8cd74bf1e1d478f2a5a668abf3ff601c404324af

Aliases

arxiv: 0904.4864 · arxiv_version: 0904.4864v1 · doi: 10.48550/arxiv.0904.4864 · pith_short_12: 76G5XESRD5EH · pith_short_16: 76G5XESRD5EH4FK3 · pith_short_8: 76G5XESR

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/76G5XESRD5EH4FK37U7YZV2L6H \
  | 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: ff8ddb92511f487e155bfd3f8cd74bf1e1d478f2a5a668abf3ff601c404324af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70365c2c4b4d2f8563230497226764ce70b851b3709b7c9a9d11f063a3f7aa16",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-04-30T15:31:30Z",
    "title_canon_sha256": "9bf42b11dd442113e2e25ca921cd61743c8d31402044fb44d4336677d0267253"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4864",
    "kind": "arxiv",
    "version": 1
  }
}