Pith Number

pith:KBVODU7N

pith:2009:KBVODU7NBN33BFCBSGCMVJDPU4

not attested not anchored not stored refs pending

A simple and versatile analytical approach for planar metamaterials

A. Chipouline, A. Tuennermann, C. Menzel, C. Rockstuhl, F. Lederer, J. Petschulat, T. Paul, T. Pertsch

arxiv:0909.0778 v2 · 2009-09-03 · 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{KBVODU7NBN33BFCBSGCMVJDPU4}

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	2026-05-18T02:12:00.046677Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

506ae1d3ed0b77b094419184caa46fa71c3586674af7197f41a6dc115418a131

Aliases

arxiv: 0909.0778 · arxiv_version: 0909.0778v2 · doi: 10.48550/arxiv.0909.0778 · pith_short_12: KBVODU7NBN33 · pith_short_16: KBVODU7NBN33BFCB · pith_short_8: KBVODU7N

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/KBVODU7NBN33BFCBSGCMVJDPU4 \
  | 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: 506ae1d3ed0b77b094419184caa46fa71c3586674af7197f41a6dc115418a131

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6e5ac87f92161b3e22dd2117947cbf6bf28e2472258d1b78dbea80e2d09f186",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2009-09-03T22:30:06Z",
    "title_canon_sha256": "5059f4fea06b05de361e4bf45a4142fc5f0c73f601ef05abd210deed4fef8d8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0778",
    "kind": "arxiv",
    "version": 2
  }
}