Pith Number

pith:4UTKYVL5

pith:2016:4UTKYVL5ZQQ2XX4NNLQVQTAWAY

not attested not anchored not stored refs pending

Exact Finite-Difference Time-Domain Modelling of Broadband Huygens' Metasurfaces with Lorentz Dispersions

Shulabh Gupta, Tom J. Smy

arxiv:1609.05575 v1 · 2016-09-19 · 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{4UTKYVL5ZQQ2XX4NNLQVQTAWAY}

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	2026-05-18T01:04:25.994833Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e526ac557dcc21abdf8d6ae1584c16060c2f66432b3af6a9650836245b774cb0

Aliases

arxiv: 1609.05575 · arxiv_version: 1609.05575v1 · doi: 10.48550/arxiv.1609.05575 · pith_short_12: 4UTKYVL5ZQQ2 · pith_short_16: 4UTKYVL5ZQQ2XX4N · pith_short_8: 4UTKYVL5

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/4UTKYVL5ZQQ2XX4NNLQVQTAWAY \
  | 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: e526ac557dcc21abdf8d6ae1584c16060c2f66432b3af6a9650836245b774cb0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ceecd39af9c930390abd5b641211bccecfa9a55eeb2ab699a5774a0299cc142",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2016-09-19T00:58:09Z",
    "title_canon_sha256": "623a0dd387bbb592365fbb71c792cd636fceb0efad7d45815eea2b4f84badfc5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.05575",
    "kind": "arxiv",
    "version": 1
  }
}