Pith Number

pith:STXSUKQT

pith:2012:STXSUKQTLJCDCYVNQGLCOEPFZU

not attested not anchored not stored refs pending

PT Metamaterials via Complex-Coordinate Transformation Optics

Andrea Alu', Giuseppe Castaldi, Nader Engheta, Silvio Savoia, Vincenzo Galdi

arxiv:1210.7629 v2 · 2012-10-29 · 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{STXSUKQTLJCDCYVNQGLCOEPFZU}

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	2026-05-18T01:53:36.426034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94ef2a2a135a443162ad81962711e5cd24305b35f8366354a5840132f0d31a9e

Aliases

arxiv: 1210.7629 · arxiv_version: 1210.7629v2 · doi: 10.48550/arxiv.1210.7629 · pith_short_12: STXSUKQTLJCD · pith_short_16: STXSUKQTLJCDCYVN · pith_short_8: STXSUKQT

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/STXSUKQTLJCDCYVNQGLCOEPFZU \
  | 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: 94ef2a2a135a443162ad81962711e5cd24305b35f8366354a5840132f0d31a9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53abb12afde4741fc18d7185787beff520948252c1f6f634c985e235a802f518",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-10-29T11:50:36Z",
    "title_canon_sha256": "8211051f69a931a851e17ab2901a08eeaebaa07955128ab72077a1066d1237f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.7629",
    "kind": "arxiv",
    "version": 2
  }
}