Pith Number

pith:2VLU7DV3

pith:2021:2VLU7DV3B5WVDHEQBUXQATRJRL

not attested not anchored not stored refs pending

Optimization of optical waveguide antennas for directive emission of light

Henna Farheen, Jens F\"orstner, Stefan Linden, Till Leuteritz, Viktor Myroshnychenko

arxiv:2106.02468 v1 · 2021-06-04 · 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{2VLU7DV3B5WVDHEQBUXQATRJRL}

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	2026-07-05T02:46:19.693887Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5574f8ebb0f6d519c900d2f004e298ae054bbf5c38a6c526a1b2c78aa4804df

Aliases

arxiv: 2106.02468 · arxiv_version: 2106.02468v1 · doi: 10.48550/arxiv.2106.02468 · pith_short_12: 2VLU7DV3B5WV · pith_short_16: 2VLU7DV3B5WVDHEQ · pith_short_8: 2VLU7DV3

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/2VLU7DV3B5WVDHEQBUXQATRJRL \
  | 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: d5574f8ebb0f6d519c900d2f004e298ae054bbf5c38a6c526a1b2c78aa4804df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d11ad0288d2f593b5b770d1dce6381313174c988e520fb721d551d7bf23188a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2021-06-04T13:12:08Z",
    "title_canon_sha256": "6fa751bc00298b62733db7c8d55236ec73e3f45bc2ec4413cb62247ae16222f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.02468",
    "kind": "arxiv",
    "version": 1
  }
}