Pith Number

pith:OVZ2PKFR

pith:2020:OVZ2PKFRCBELG7C7QHBW5CPSEH

not attested not anchored not stored refs pending

The PVLAS experiment: a 25 year effort to measure vacuum magnetic birefringence

A. Ejlli, F. Della Valle, G. Messineo, G. Ruoso, G. Zavattini, R. Pengo, U. Gastaldi

arxiv:2005.12913 v1 · 2020-05-26 · physics.optics · hep-ex

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OVZ2PKFRCBELG7C7QHBW5CPSEH}

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

2 papers in Pith

Neutron Star Eclipses as Axion Laboratories

Any Light Particle Searches with ALPS II: first science results

Receipt and verification

First computed	2026-07-05T01:05:59.609110Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7573a7a8b11048b37c5f81c36e89f221e7fb96c33afa25fb658503fa0b5a568c

Aliases

arxiv: 2005.12913 · arxiv_version: 2005.12913v1 · doi: 10.48550/arxiv.2005.12913 · pith_short_12: OVZ2PKFRCBEL · pith_short_16: OVZ2PKFRCBELG7C7 · pith_short_8: OVZ2PKFR

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/OVZ2PKFRCBELG7C7QHBW5CPSEH \
  | 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: 7573a7a8b11048b37c5f81c36e89f221e7fb96c33afa25fb658503fa0b5a568c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ceee870a523a3ab74d6e600d5d3b0aefd033accc66f51e0d453a620f2db8027c",
    "cross_cats_sorted": [
      "hep-ex"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2020-05-26T16:39:18Z",
    "title_canon_sha256": "08d24c9b7372c51bc04edda5445351a3a384af1d4fe961895da16e069df45a6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.12913",
    "kind": "arxiv",
    "version": 1
  }
}