Pith Number

pith:WV67BQSR

pith:2018:WV67BQSRQ2K3CCTDMCPAUIWX2Z

not attested not anchored not stored refs pending

Spiral Transformation for High-Resolution and Efficient Sorting of Optical Vortex Modes

Ioannis Chremmos, Jiangbo Zhu, Siyuan Yu, Yanfeng Zhang, Yuanhui Wen, Yujie Chen

arxiv:1801.08320 v1 · 2018-01-25 · 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{WV67BQSRQ2K3CCTDMCPAUIWX2Z}

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	2026-05-18T00:15:57.929785Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b57df0c2518695b10a63609e0a22d7d6403f9f6c0e928aa2b69e9793c052a042

Aliases

arxiv: 1801.08320 · arxiv_version: 1801.08320v1 · doi: 10.48550/arxiv.1801.08320 · pith_short_12: WV67BQSRQ2K3 · pith_short_16: WV67BQSRQ2K3CCTD · pith_short_8: WV67BQSR

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/WV67BQSRQ2K3CCTDMCPAUIWX2Z \
  | 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: b57df0c2518695b10a63609e0a22d7d6403f9f6c0e928aa2b69e9793c052a042

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea80f0e1a8db00ef6a7bb2f81f9a87d9f83b3884a478ea5bab29d1e6470ed9ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-01-25T09:24:19Z",
    "title_canon_sha256": "92d44b69a462cc5c91d8cb566c728e80420cb890bd5c483ff81c2fe54857cfbe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.08320",
    "kind": "arxiv",
    "version": 1
  }
}