Pith Number

pith:SW2RNMJR

pith:2015:SW2RNMJRBFSEDORTKKWBLN3FKC

not attested not anchored not stored refs pending

Archimedes: a feasibility study of an experiment to weigh the electromagnetic vacuum

Carlo Rovelli, Cosimo Stornaiolo, E. Majorana, Enrico Calloni, Francesco Tafuri, Fulvio Ricci, Giampiero Esposito, G. P. Pepe, Luigi Rosa, Martina De Laurentis, M. Grilli, N. L. Saini, Paola Puppo, P. Rapagnani, P. Ruggi, S. Caprara, S. Petrarca

arxiv:1511.04269 v1 · 2015-11-13 · gr-qc · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SW2RNMJRBFSEDORTKKWBLN3FKC}

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	2026-05-18T01:26:59.256418Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95b516b131096441ba3352ac15b76550a4ac28b55dc9e7af91ba159185d46167

Aliases

arxiv: 1511.04269 · arxiv_version: 1511.04269v1 · doi: 10.48550/arxiv.1511.04269 · pith_short_12: SW2RNMJRBFSE · pith_short_16: SW2RNMJRBFSEDORT · pith_short_8: SW2RNMJR

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/SW2RNMJRBFSEDORTKKWBLN3FKC \
  | 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: 95b516b131096441ba3352ac15b76550a4ac28b55dc9e7af91ba159185d46167

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "005493abc39f3c96baa715b8e40e5098a4639843b98d45c6f8708f24462f9e29",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-11-13T12:59:17Z",
    "title_canon_sha256": "ca99ed8d4bf00c0bd51951dc1bda73908d177f2b4d6c7f3857c205db0635bf1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.04269",
    "kind": "arxiv",
    "version": 1
  }
}