Pith Number

pith:UIRMJRY6

pith:2011:UIRMJRY6WTZGRFIPZ6YIXV4OZQ

not attested not anchored not stored refs pending

A simple construction for a cylindrical cloak via inverse homogenization

Akhlesh Lakhtakia (Pennsylvania State University), Tom G. Mackay (University of Edinburgh), Tom H. Anderson (University of Edinburgh)

arxiv:1108.5936 v1 · 2011-08-30 · 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{UIRMJRY6WTZGRFIPZ6YIXV4OZQ}

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	2026-05-18T04:01:49.548502Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a222c4c71eb4f268950fcfb08bd78ecc1655cb65530445cc82db34ea5c3dde76

Aliases

arxiv: 1108.5936 · arxiv_version: 1108.5936v1 · doi: 10.48550/arxiv.1108.5936 · pith_short_12: UIRMJRY6WTZG · pith_short_16: UIRMJRY6WTZGRFIP · pith_short_8: UIRMJRY6

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/UIRMJRY6WTZGRFIPZ6YIXV4OZQ \
  | 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: a222c4c71eb4f268950fcfb08bd78ecc1655cb65530445cc82db34ea5c3dde76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d478ee68e297ee0db25d58bd55379578c3e95981f2b71458a5443223a7eb651a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2011-08-30T12:02:57Z",
    "title_canon_sha256": "052c682c555fd7b03b532896254594c5357f923867aa8e17886fe1c169a4e698"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.5936",
    "kind": "arxiv",
    "version": 1
  }
}