Pith Number

pith:LGWQ5G4K

pith:2012:LGWQ5G4KIJ2ABOT52NJA6UEN2O

not attested not anchored not stored refs pending

Beam shaping using genetically optimized two-dimensional photonic crystals

Denis Gagnon, Joey Dumont, Louis J. Dub\'e

arxiv:1204.5380 v3 · 2012-04-24 · 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{LGWQ5G4KIJ2ABOT52NJA6UEN2O}

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	2026-05-18T03:32:31.832217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59ad0e9b8a427400ba7dd3520f508dd3b64f1b309710a30e5d7323a3bc7064b3

Aliases

arxiv: 1204.5380 · arxiv_version: 1204.5380v3 · doi: 10.48550/arxiv.1204.5380 · pith_short_12: LGWQ5G4KIJ2A · pith_short_16: LGWQ5G4KIJ2ABOT5 · pith_short_8: LGWQ5G4K

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/LGWQ5G4KIJ2ABOT52NJA6UEN2O \
  | 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: 59ad0e9b8a427400ba7dd3520f508dd3b64f1b309710a30e5d7323a3bc7064b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3ec74a64c93ab57d68631bf20a7de16f66a04693764af7ad85878a367335aee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-04-24T14:09:28Z",
    "title_canon_sha256": "1fa61cca1fd488d84e7153b5e48b11446b6f1d83a33024d524c9198f74d9c362"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.5380",
    "kind": "arxiv",
    "version": 3
  }
}