Pith Number

pith:KOP36OXN

pith:2014:KOP36OXNSZ4QTK72JM3B6N3GL5

not attested not anchored not stored refs pending

Robust wedge demonstration to optical negative index metamaterials

Costas M. Soukoulis, Maria Kafesaki, Nian-Hai Shen, Thomas Koschny

arxiv:1406.0097 v1 · 2014-05-31 · 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{KOP36OXNSZ4QTK72JM3B6N3GL5}

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	2026-05-18T02:50:41.784563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

539fbf3aed967909abfa4b361f37665f63456c8b8e9a42780964ed716c319120

Aliases

arxiv: 1406.0097 · arxiv_version: 1406.0097v1 · doi: 10.48550/arxiv.1406.0097 · pith_short_12: KOP36OXNSZ4Q · pith_short_16: KOP36OXNSZ4QTK72 · pith_short_8: KOP36OXN

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/KOP36OXNSZ4QTK72JM3B6N3GL5 \
  | 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: 539fbf3aed967909abfa4b361f37665f63456c8b8e9a42780964ed716c319120

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e154a285ced75c469a309cefcdcc42a509d5ca52361f1dea31e9e8cf955dfe26",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2014-05-31T18:08:32Z",
    "title_canon_sha256": "bbb4a4f835fa465c9409e880f6f106779c7782d07c7c7366ae95cfe06cd246d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.0097",
    "kind": "arxiv",
    "version": 1
  }
}