Pith Number

pith:I5JTPOY7

pith:2016:I5JTPOY7OQC5BDUQLULDXUETP6

not attested not anchored not stored refs pending

Birth and evolution of an optical vortex

Anna Sponselli, Fabio Sciarrino, Giuseppe Vallone, Lorenzo Marrucci, Paolo Villoresi, Vincenzo D'Ambrosio

arxiv:1604.01018 v2 · 2016-04-04 · physics.optics · 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{I5JTPOY7OQC5BDUQLULDXUETP6}

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	2026-05-18T00:51:01.363088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

475337bb1f7405d08e905d163bd0937f8ccc037b135048e684ed66417b515d9b

Aliases

arxiv: 1604.01018 · arxiv_version: 1604.01018v2 · doi: 10.48550/arxiv.1604.01018 · pith_short_12: I5JTPOY7OQC5 · pith_short_16: I5JTPOY7OQC5BDUQ · pith_short_8: I5JTPOY7

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/I5JTPOY7OQC5BDUQLULDXUETP6 \
  | 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: 475337bb1f7405d08e905d163bd0937f8ccc037b135048e684ed66417b515d9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94a00645a4f5cbd5a2e128a8a872361b28eae041b5bfc4fc03ae847415f9084f",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2016-04-04T09:32:14Z",
    "title_canon_sha256": "0c60c15acf00d5aa17b6cf39b4475b04a493478f8ee1264544d55154ebb2b54e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.01018",
    "kind": "arxiv",
    "version": 2
  }
}