Pith Number

pith:OEZXW2KO

pith:2018:OEZXW2KODOYXIQGXL6UBA5XSEW

not attested not anchored not stored refs pending

Adjoint method and inverse design for nonlinear nanophotonic devices

Ian A. D. Williamson, Momchil Minkov, Shanhui Fan, Tyler W. Hughes

arxiv:1811.01255 v1 · 2018-11-03 · physics.optics · physics.app-ph · physics.comp-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OEZXW2KODOYXIQGXL6UBA5XSEW}

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	2026-05-17T23:52:58.628876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71337b694e1bb17440d75fa81076f2258a6ca9e0afce9f5265f54d4240b86620

Aliases

arxiv: 1811.01255 · arxiv_version: 1811.01255v1 · doi: 10.48550/arxiv.1811.01255 · pith_short_12: OEZXW2KODOYX · pith_short_16: OEZXW2KODOYXIQGX · pith_short_8: OEZXW2KO

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/OEZXW2KODOYXIQGXL6UBA5XSEW \
  | 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: 71337b694e1bb17440d75fa81076f2258a6ca9e0afce9f5265f54d4240b86620

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e098437668458c97c06dd49270dad1b1c30cd3dd428882d6dfb58e44ab611985",
    "cross_cats_sorted": [
      "physics.app-ph",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-11-03T17:29:41Z",
    "title_canon_sha256": "8d2dc252bd7632af89c68548611c651149c35082186599ee0f5f0c3789cb5d19"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.01255",
    "kind": "arxiv",
    "version": 1
  }
}