Pith Number

pith:V4YIY5C3

pith:2004:V4YIY5C3RKDLZP4FIYS4UPMIM4

not attested not anchored not stored refs pending

Experimental observation of optical vortex evolution in a Gaussian beam with an embedded fractional phase step

K.Dholakia, W.M. Lee, X.-C. Yuan

arxiv:physics/0403118 v2 · 2004-03-25 · 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{V4YIY5C3RKDLZP4FIYS4UPMIM4}

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	2026-07-04T16:49:49.572519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af308c745b8a86bcbf854625ca3d88673ef8248097b5bb22f57edd4675771dfe

Aliases

arxiv: physics/0403118 · arxiv_version: physics/0403118v2 · doi: 10.48550/arxiv.physics/0403118 · pith_short_12: V4YIY5C3RKDL · pith_short_16: V4YIY5C3RKDLZP4F · pith_short_8: V4YIY5C3

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/V4YIY5C3RKDLZP4FIYS4UPMIM4 \
  | 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: af308c745b8a86bcbf854625ca3d88673ef8248097b5bb22f57edd4675771dfe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bcf5c7f5895904f3614e615f43be23d59bf1223508136e40a05cb50fb43c00d9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.optics",
    "submitted_at": "2004-03-25T03:13:32Z",
    "title_canon_sha256": "79eb23cf5dbcaca96598d3ba86d711c2372483dbf187b16f4a871ffbf4adcd67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0403118",
    "kind": "arxiv",
    "version": 2
  }
}