Pith Number

pith:5GA5RT7H

pith:2011:5GA5RT7HUNOM6ZNFEKBNCL3HKI

not attested not anchored not stored refs pending

Testing the neutrality of matter by acoustic means in a spherical resonator

F. Della Valle, G. Bressi, G. Carugno, G. Galeazzi, G. Ruoso, G. Sartori

arxiv:1102.2766 v2 · 2011-02-14 · physics.atom-ph · hep-ph · physics.class-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{5GA5RT7HUNOM6ZNFEKBNCL3HKI}

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	2026-05-18T02:03:11.415922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e981d8cfe7a35ccf65a52282d12f675209dce02c86d2cffdad1bd4751d522426

Aliases

arxiv: 1102.2766 · arxiv_version: 1102.2766v2 · doi: 10.48550/arxiv.1102.2766 · pith_short_12: 5GA5RT7HUNOM · pith_short_16: 5GA5RT7HUNOM6ZNF · pith_short_8: 5GA5RT7H

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/5GA5RT7HUNOM6ZNFEKBNCL3HKI \
  | 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: e981d8cfe7a35ccf65a52282d12f675209dce02c86d2cffdad1bd4751d522426

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1e2a47c0531c14fecc143dcc1774e1c9bf99018782129364b84e7b80b43a0cc",
    "cross_cats_sorted": [
      "hep-ph",
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2011-02-14T13:29:06Z",
    "title_canon_sha256": "c9024112dd3e1a66b7ea99f964aba69451a8853a48f2b2806a6a0af4b6a839b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.2766",
    "kind": "arxiv",
    "version": 2
  }
}