Pith Number

pith:CGNVOSPS

pith:2017:CGNVOSPSU6ECT7YQPMPNI6PKNY

not attested not anchored not stored refs pending

Observation of optical vortices in momentum space

Ang Chen, Chia Wei Hsu, Fang Guan, Jian Zi, Lei Shi, Ling Lu, Wenzhe Liu, Xiaohan Liu, Yiwen Zhang

arxiv:1709.03648 v1 · 2017-09-12 · 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{CGNVOSPSU6ECT7YQPMPNI6PKNY}

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	2026-05-18T00:16:44.958484Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

119b5749f2a78829ff107b1ed479ea6e230d0413f964cb517621d119b4756edf

Aliases

arxiv: 1709.03648 · arxiv_version: 1709.03648v1 · doi: 10.48550/arxiv.1709.03648 · pith_short_12: CGNVOSPSU6EC · pith_short_16: CGNVOSPSU6ECT7YQ · pith_short_8: CGNVOSPS

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/CGNVOSPSU6ECT7YQPMPNI6PKNY \
  | 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: 119b5749f2a78829ff107b1ed479ea6e230d0413f964cb517621d119b4756edf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69f8bdc3ea55e2a9e5ff670170acc104ddfb10be6f8d944ebde96a3780641913",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2017-09-12T01:45:16Z",
    "title_canon_sha256": "fb2813cad633554ecf0ce8b2c6e758f77c977dfbacf0d9e9836aa50edbac399a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.03648",
    "kind": "arxiv",
    "version": 1
  }
}