Pith Number

pith:D3ZHG7M5

pith:2019:D3ZHG7M5XPEGVXLC2VOKYVOD4X

not attested not anchored not stored refs pending

Maxwell's fisheye lens as efficient power coupler between dissimilar photonic crystal waveguides

M. M. Gilarlue, S. Hadi Badri

arxiv:1904.01242 v1 · 2019-04-02 · 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{D3ZHG7M5XPEGVXLC2VOKYVOD4X}

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	2026-05-17T23:49:35.438727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ef2737d9dbbc86add62d55cac55c3e5ea11cf3da719bbe1378b8867095895b7

Aliases

arxiv: 1904.01242 · arxiv_version: 1904.01242v1 · doi: 10.48550/arxiv.1904.01242 · pith_short_12: D3ZHG7M5XPEG · pith_short_16: D3ZHG7M5XPEGVXLC · pith_short_8: D3ZHG7M5

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/D3ZHG7M5XPEGVXLC2VOKYVOD4X \
  | 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: 1ef2737d9dbbc86add62d55cac55c3e5ea11cf3da719bbe1378b8867095895b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a23362310f0826b358e309a5f1b94042d31fbf32bc4e284e41ecf5b9b64af9f8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-04-02T06:57:07Z",
    "title_canon_sha256": "c57a17a4603449c2e2b98db0a5f6af805745d8d24a3dc0e376dc393943b63ddb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01242",
    "kind": "arxiv",
    "version": 1
  }
}