Pith Number

pith:4WQ4BP7Z

pith:2019:4WQ4BP7ZFGEY5E5EQSY4FEY6HX

not attested not anchored not stored refs pending

Length measurement and stabilisation of the diagonals of a square area laser gyroscope

A. Di Virgilio, E. Maccioni, F. Stefani, G. Carelli, J. Belfi, N. Beverini, U. Giacomelli

arxiv:1902.02993 v3 · 2019-02-08 · physics.ins-det

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4WQ4BP7ZFGEY5E5EQSY4FEY6HX}

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	2026-05-17T23:43:49.917519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5a1c0bff929898e93a484b1c2931e3df185f84431b2da7d0a62a6fdfcd4f509

Aliases

arxiv: 1902.02993 · arxiv_version: 1902.02993v3 · doi: 10.48550/arxiv.1902.02993 · pith_short_12: 4WQ4BP7ZFGEY · pith_short_16: 4WQ4BP7ZFGEY5E5E · pith_short_8: 4WQ4BP7Z

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/4WQ4BP7ZFGEY5E5EQSY4FEY6HX \
  | 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: e5a1c0bff929898e93a484b1c2931e3df185f84431b2da7d0a62a6fdfcd4f509

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fdbd3045257198f1d49496fe94bce7ab526bfac437d064218b51ccc049522ee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2019-02-08T09:49:36Z",
    "title_canon_sha256": "72bfacfaf0ad54f2d3fd9d3dd2c492bbb8f77bdad9545fbb3519991dcc041362"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02993",
    "kind": "arxiv",
    "version": 3
  }
}