Pith Number

pith:LTDQ4P6L

pith:2005:LTDQ4P6L32BPU5RY6IXKRV767T

not attested not anchored not stored refs pending

Negative Refractive Index in Optics of Metal-Dielectric Composites

A. K. Sarychev, A. V. Kildishev, H.-K. Yuan, U. K. Chettiar, V. M. Shalaev, V. P. Drachev, W. Cai

arxiv:physics/0510001 v1 · 2005-10-01 · 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{LTDQ4P6L32BPU5RY6IXKRV767T}

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	2026-05-18T01:05:08.155766Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5cc70e3fcbde82fa7638f22ea8d7fefcc380aff99fb8f4b6b1ae6c6dc7d9c086

Aliases

arxiv: physics/0510001 · arxiv_version: physics/0510001v1 · doi: 10.48550/arxiv.physics/0510001 · pith_short_12: LTDQ4P6L32BP · pith_short_16: LTDQ4P6L32BPU5RY · pith_short_8: LTDQ4P6L

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/LTDQ4P6L32BPU5RY6IXKRV767T \
  | 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: 5cc70e3fcbde82fa7638f22ea8d7fefcc380aff99fb8f4b6b1ae6c6dc7d9c086

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4b52516262101a490cb024d6be434b9bf721a50487884c940341fb0b003afd9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.optics",
    "submitted_at": "2005-10-01T00:03:27Z",
    "title_canon_sha256": "0b33e4fd86bd53301e96ec679230d62c1173d9674232b06a75d8d01e15da9174"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0510001",
    "kind": "arxiv",
    "version": 1
  }
}