Pith Number

pith:EWPDCX3S

pith:2015:EWPDCX3SD5J3SRJEQO77WMF6WS

not attested not anchored not stored refs pending

Space-variant polarized Airy beam

Guoqiang Li, Hao Chen

arxiv:1512.06490 v1 · 2015-12-21 · 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{EWPDCX3SD5J3SRJEQO77WMF6WS}

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	2026-05-18T01:24:00.408725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

259e315f721f53b9452483bffb30beb4bbf42880c0781d28c8de4cfb8be8b24d

Aliases

arxiv: 1512.06490 · arxiv_version: 1512.06490v1 · doi: 10.48550/arxiv.1512.06490 · pith_short_12: EWPDCX3SD5J3 · pith_short_16: EWPDCX3SD5J3SRJE · pith_short_8: EWPDCX3S

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/EWPDCX3SD5J3SRJEQO77WMF6WS \
  | 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: 259e315f721f53b9452483bffb30beb4bbf42880c0781d28c8de4cfb8be8b24d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "edb994da50b343c644a590d6c148f657c5b353bc9fde3083b8e2326cccb8d1f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2015-12-21T04:31:50Z",
    "title_canon_sha256": "edfbcc30d762dec2f7a4e94606941b1031345305c2f5f2570a3e830aa3919492"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.06490",
    "kind": "arxiv",
    "version": 1
  }
}