Pith Number

pith:4U6766XC

pith:2007:4U6766XCEOBJPGDE5RAOHCD2EG

not attested not anchored not stored refs pending

Optical design of reflectionless complex media by finite embedded coordinate transformations

David R. Smith, David Schurig, John B. Pendry, Marco Rahm, Steven A. Cummer

arxiv:0711.1846 v2 · 2007-11-12 · 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{4U6766XCEOBJPGDE5RAOHCD2EG}

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.

Cited by

2 papers in Pith

The G\"odel Universe as a Superconductor

Receipt and verification

First computed	2026-07-04T15:09:58.633181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e53dff7ae22382979864ec40e3887a219f8f3cd61cfe449cd8472a44704aef01

Aliases

arxiv: 0711.1846 · arxiv_version: 0711.1846v2 · doi: 10.48550/arxiv.0711.1846 · pith_short_12: 4U6766XCEOBJ · pith_short_16: 4U6766XCEOBJPGDE · pith_short_8: 4U6766XC

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/4U6766XCEOBJPGDE5RAOHCD2EG \
  | 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: e53dff7ae22382979864ec40e3887a219f8f3cd61cfe449cd8472a44704aef01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af4b369d6f5b6fb7dbd2a7c8f62043eae160847909d6914417efa07b2e32dd94",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.optics",
    "submitted_at": "2007-11-12T20:03:30Z",
    "title_canon_sha256": "3bcd7110f6478adc3f0158bbaf9f6596e8e117c39dc8da22ba436272c41d56d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.1846",
    "kind": "arxiv",
    "version": 2
  }
}