Pith Number

pith:UUJQWJW4

pith:2012:UUJQWJW4SFMTYDESTOVZGL7DGL

not attested not anchored not stored refs pending

A comparison of graphene, superconductors and metals as conductors for metamaterials and plasmonics

Costas M. Soukoulis, Maria Kafesaki, Philippe Tassin, Thomas Koschny

arxiv:1210.0640 v1 · 2012-10-02 · cond-mat.mtrl-sci · cond-mat.mes-hall · 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{UUJQWJW4SFMTYDESTOVZGL7DGL}

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	2026-05-18T03:44:14.627892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5130b26dc91593c0c929bab932fe332c0c8f83880e389a3e2d0b5681f8a4445

Aliases

arxiv: 1210.0640 · arxiv_version: 1210.0640v1 · doi: 10.48550/arxiv.1210.0640 · pith_short_12: UUJQWJW4SFMT · pith_short_16: UUJQWJW4SFMTYDES · pith_short_8: UUJQWJW4

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/UUJQWJW4SFMTYDESTOVZGL7DGL \
  | 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: a5130b26dc91593c0c929bab932fe332c0c8f83880e389a3e2d0b5681f8a4445

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "919a24cc7d4adaf5495e41eac6642e5e062cd8b226e8a3c26a43a11ffce14da8",
    "cross_cats_sorted": [
      "cond-mat.mes-hall",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2012-10-02T03:21:11Z",
    "title_canon_sha256": "ee8ecf1e4ca8ed17c1d05c1574c8c940294994e1f8c875ec7d8ac861d14291e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.0640",
    "kind": "arxiv",
    "version": 1
  }
}