Pith Number

pith:EEB3SWPT

pith:2021:EEB3SWPTKVWQVY72VD3FWBIXV2

not attested not anchored not stored refs pending

Free-space Realization of Tunable Pin-like Optical Vortex Beams

Daohong Song, Denghui Li, Domenico Bongiovanni, Hao Wu, Michail Goutsoulas, Nikolaos Efremidis, Roberto Morandotti, Yi Hu, Zhigang Chen

arxiv:2103.16138 v1 · 2021-03-30 · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EEB3SWPTKVWQVY72VD3FWBIXV2}

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	2026-07-05T02:27:48.782244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2103b959f3556d0ae3faa8f65b0517aead90c1238a658dc7a0cd5016b08307a7

Aliases

arxiv: 2103.16138 · arxiv_version: 2103.16138v1 · doi: 10.48550/arxiv.2103.16138 · pith_short_12: EEB3SWPTKVWQ · pith_short_16: EEB3SWPTKVWQVY72 · pith_short_8: EEB3SWPT

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/EEB3SWPTKVWQVY72VD3FWBIXV2 \
  | 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: 2103b959f3556d0ae3faa8f65b0517aead90c1238a658dc7a0cd5016b08307a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41a6382a9873033a03f4647c5088f058ecf00618c130c02cf592d3a310dba9ac",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2021-03-30T07:52:38Z",
    "title_canon_sha256": "f070304d208af3551b25838c041c48b26016c83ec1b08e30ee94ac161c0fabd5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.16138",
    "kind": "arxiv",
    "version": 1
  }
}