Pith Number

pith:KMGKCTD2

pith:2002:KMGKCTD2QL6EGRE65VPIE2RQOG

not attested not anchored not stored refs pending

Spectral response of Cantor multilayers made of materials with negative refractive index

Akhlesh Lakhtakia, Jaline Gerardin

arxiv:physics/0208011 v1 · 2002-08-02 · physics.class-ph · cond-mat.other · 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{KMGKCTD2QL6EGRE65VPIE2RQOG}

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	2026-05-18T01:38:09.210766Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

530ca14c7a82fc43449eed5e826a3071b68ed6bdb242e5f053ac73823b3070d4

Aliases

arxiv: physics/0208011 · arxiv_version: physics/0208011v1 · doi: 10.48550/arxiv.physics/0208011 · pith_short_12: KMGKCTD2QL6E · pith_short_16: KMGKCTD2QL6EGRE6 · pith_short_8: KMGKCTD2

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/KMGKCTD2QL6EGRE65VPIE2RQOG \
  | 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: 530ca14c7a82fc43449eed5e826a3071b68ed6bdb242e5f053ac73823b3070d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92e60648128e0f0246fbd44134f7fee8df1c9dc8af34241cdce2a7ab3ad8778f",
    "cross_cats_sorted": [
      "cond-mat.other",
      "physics.optics"
    ],
    "license": "",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2002-08-02T13:12:45Z",
    "title_canon_sha256": "841c647bf56b1daa7c887cc1a56275b96e0444bb08d45698c7204c4f5b604faf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0208011",
    "kind": "arxiv",
    "version": 1
  }
}