Pith Number

pith:YFSCR6VP

pith:2013:YFSCR6VPDBBBULV5XCFXWV7JSQ

not attested not anchored not stored refs pending

Odd-symmetry phase gratings produce optical nulls uniquely insensitive to wavelength and depth

Patrick R. Gill

arxiv:1303.4477 v2 · 2013-03-19 · 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{YFSCR6VPDBBBULV5XCFXWV7JSQ}

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	2026-05-18T03:21:43.181935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c16428faaf18421a2ebdb88b7b57e99428072cb6f89eb276aef0f872e2d1f1c4

Aliases

arxiv: 1303.4477 · arxiv_version: 1303.4477v2 · doi: 10.48550/arxiv.1303.4477 · pith_short_12: YFSCR6VPDBBB · pith_short_16: YFSCR6VPDBBBULV5 · pith_short_8: YFSCR6VP

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/YFSCR6VPDBBBULV5XCFXWV7JSQ \
  | 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: c16428faaf18421a2ebdb88b7b57e99428072cb6f89eb276aef0f872e2d1f1c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2555ae92094534f3283408c190ce300900a2fe204f809aa9e81c7012b321db9e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2013-03-19T03:18:51Z",
    "title_canon_sha256": "b26700a112c5536ff3559ad9644f9371b30975b5aa0b39bf59924e8565cf891b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.4477",
    "kind": "arxiv",
    "version": 2
  }
}