Pith Number

pith:YC3BHVMV

pith:2008:YC3BHVMVPQNDEEMZEO7ZGEDO5T

not attested not anchored not stored refs pending

Negative-index bi-anisotropic photonic metamaterial fabricated by direct laser writing and silver shadow evaporation

Christine Plet, Georg von Freymann, Martin Wegener, Michael S. Rill, Michael Thiel, Stefan Linden

arxiv:0809.2207 v1 · 2008-09-12 · 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{YC3BHVMVPQNDEEMZEO7ZGEDO5T}

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	2026-05-18T01:17:21.468293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0b613d5957c1a32119923bf93106eeced02d4ea061bda24b45eaf688c2c9abc

Aliases

arxiv: 0809.2207 · arxiv_version: 0809.2207v1 · doi: 10.48550/arxiv.0809.2207 · pith_short_12: YC3BHVMVPQND · pith_short_16: YC3BHVMVPQNDEEMZ · pith_short_8: YC3BHVMV

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/YC3BHVMVPQNDEEMZEO7ZGEDO5T \
  | 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: c0b613d5957c1a32119923bf93106eeced02d4ea061bda24b45eaf688c2c9abc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8ab65c8a4ef6b98cf7c6ccc7425d01b14a4a430685e6eebe5bb2af04115f13d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2008-09-12T13:00:49Z",
    "title_canon_sha256": "c6fca5d41d425ac90b231e72b362d2e36c85c8dc9cbbe336367c3f948d514598"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2207",
    "kind": "arxiv",
    "version": 1
  }
}