Pith Number

pith:BYT4U3M4

pith:2026:BYT4U3M4YHPA3RIRAPBYY5FHVZ

not attested not anchored not stored refs pending

Optical vortex classification via machine learning

Boqiang Huang, Stefan Schumacher, Tobias Schneider, Xuekai Ma

arxiv:2606.03480 v1 · 2026-06-02 · 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{BYT4U3M4YHPA3RIRAPBYY5FHVZ}

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	2026-06-03T01:05:58.944207Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e27ca6d9cc1de0dc51103c38c74a7ae4cbdfb1b5e2585e649a5a0590201b88f

Aliases

arxiv: 2606.03480 · arxiv_version: 2606.03480v1 · doi: 10.48550/arxiv.2606.03480 · pith_short_12: BYT4U3M4YHPA · pith_short_16: BYT4U3M4YHPA3RIR · pith_short_8: BYT4U3M4

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/BYT4U3M4YHPA3RIRAPBYY5FHVZ \
  | 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: 0e27ca6d9cc1de0dc51103c38c74a7ae4cbdfb1b5e2585e649a5a0590201b88f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e263c771c115135991293863b578b7341899adc9123763b04ff3a76208bcff91",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2026-06-02T10:58:05Z",
    "title_canon_sha256": "376c08aa319a208389038d6a78277ebe50a79e2656dc3542a978ca28f2445132"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.03480",
    "kind": "arxiv",
    "version": 1
  }
}