Pith Number

pith:5ZPYGPEK

pith:2009:5ZPYGPEKZH6F6Q6QPNLPPLO4G7

not attested not anchored not stored refs pending

Frequency-domain simulations of a negative-index material with embedded gain

Alexander V. Kildishev, Shumin Xiao, Uday K. Chettiar, Vladimir M. Shalaev, Yonatan Sivan

arxiv:0912.0289 v2 · 2009-12-01 · 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{5ZPYGPEKZH6F6Q6QPNLPPLO4G7}

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	2026-05-18T02:10:34.853356Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee5f833c8ac9fc5f43d07b56f7addc37d426f3f58f080c8796c290705a282ef7

Aliases

arxiv: 0912.0289 · arxiv_version: 0912.0289v2 · doi: 10.48550/arxiv.0912.0289 · pith_short_12: 5ZPYGPEKZH6F · pith_short_16: 5ZPYGPEKZH6F6Q6Q · pith_short_8: 5ZPYGPEK

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/5ZPYGPEKZH6F6Q6QPNLPPLO4G7 \
  | 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: ee5f833c8ac9fc5f43d07b56f7addc37d426f3f58f080c8796c290705a282ef7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69dff54a8103f82a9312e5e870708732e541bc8d1278fa4aa102eae5a3b5b775",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2009-12-01T22:37:43Z",
    "title_canon_sha256": "f6068366da3ddd480f2d5e01759fd82552be7808cd0ff28cd48e6d6e07f79647"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.0289",
    "kind": "arxiv",
    "version": 2
  }
}