Pith Number

pith:LFECKUH6

pith:2012:LFECKUH674ZIPRUT6JXSOFIP2E

not attested not anchored not stored refs pending

Electronically reconfigurable metal-on-silicon metamaterial

David R. Smith, Jae Seung Lee, Nan M. Jokerst, Paul Schmalenberg, Sulochana Dhar, Talmage Tyler, Vinh Nguyen, Yaroslav Urzhumov

arxiv:1208.1250 v1 · 2012-08-06 · 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{LFECKUH674ZIPRUT6JXSOFIP2E}

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	2026-05-18T01:55:22.529067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59482550feff3287c693f26f27150fd114b387716a97cee9a411b8bf59a2aeda

Aliases

arxiv: 1208.1250 · arxiv_version: 1208.1250v1 · doi: 10.48550/arxiv.1208.1250 · pith_short_12: LFECKUH674ZI · pith_short_16: LFECKUH674ZIPRUT · pith_short_8: LFECKUH6

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/LFECKUH674ZIPRUT6JXSOFIP2E \
  | 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: 59482550feff3287c693f26f27150fd114b387716a97cee9a411b8bf59a2aeda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b26478e63aa417de35aebe357b10ec34e0b405a9c58fb015d99fade6e91bbf87",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-08-06T19:27:29Z",
    "title_canon_sha256": "106d2f5563bc2b3ff702b531d051eaa368fceeb0058e315b5510a34fe48e6619"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.1250",
    "kind": "arxiv",
    "version": 1
  }
}