Pith Number

pith:WE27U427

pith:2013:WE27U427BQQVFDJTFA3EL6ZBSE

not attested not anchored not stored refs pending

The searchlight effect in hyperbolic materials

Ari Sihvola, Graeme W. Milton, Ross C. McPhedran

arxiv:1302.5980 v1 · 2013-02-25 · physics.optics · math-ph · math.AP · math.MP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WE27U427BQQVFDJTFA3EL6ZBSE}

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	2026-05-18T00:54:41.941535Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b135fa735f0c21528d33283645fb21911064e1c8685a345b95a021b409d3e947

Aliases

arxiv: 1302.5980 · arxiv_version: 1302.5980v1 · doi: 10.48550/arxiv.1302.5980 · pith_short_12: WE27U427BQQV · pith_short_16: WE27U427BQQVFDJT · pith_short_8: WE27U427

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/WE27U427BQQVFDJTFA3EL6ZBSE \
  | 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: b135fa735f0c21528d33283645fb21911064e1c8685a345b95a021b409d3e947

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cac5ef74205bfd40be07ed4f120795f6603b838bf0fa8c844bad79cc7a84d384",
    "cross_cats_sorted": [
      "math-ph",
      "math.AP",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2013-02-25T02:38:53Z",
    "title_canon_sha256": "f60e34a50eab020c2c5328b933be5c256f234c7634d56c9d518e3cc998750ae9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.5980",
    "kind": "arxiv",
    "version": 1
  }
}