Pith Number

pith:WJXG2O2E

pith:2019:WJXG2O2EZ566PEW6TCJ4YMW3GV

not attested not anchored not stored refs pending

Orbital Angular Momentum preserving guided mode in helically twisted hollow core photonic crystal fiber at Dirac point

Rik Chattopadhyay, Shyamal K. Bhadra

arxiv:1902.09117 v1 · 2019-02-25 · 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{WJXG2O2EZ566PEW6TCJ4YMW3GV}

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	2026-05-17T23:52:46.597044Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b26e6d3b44cf7de792de9893cc32db3558ad7141ff2a1f88e74b3dc728da1eb7

Aliases

arxiv: 1902.09117 · arxiv_version: 1902.09117v1 · doi: 10.48550/arxiv.1902.09117 · pith_short_12: WJXG2O2EZ566 · pith_short_16: WJXG2O2EZ566PEW6 · pith_short_8: WJXG2O2E

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/WJXG2O2EZ566PEW6TCJ4YMW3GV \
  | 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: b26e6d3b44cf7de792de9893cc32db3558ad7141ff2a1f88e74b3dc728da1eb7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f88b884b57a32dc48caa05f261e9d3aa0a0ec2085cb933763509abbd9c664b3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-02-25T07:18:55Z",
    "title_canon_sha256": "60f75145a19a859f225f19e25a783a98aa43a8295fca78015c9d649e253f8740"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.09117",
    "kind": "arxiv",
    "version": 1
  }
}