Pith Number

pith:BWDUIM5Y

pith:2013:BWDUIM5YHSHMRXUPASDIIFZZST

not attested not anchored not stored refs pending

Nonlinear-optical up and down frequency-converting backward-wave metasensors and metamirrors

Alexander K. Popov (1), Birck Nanotechnology Center (2) Aalto University (3) Institute of Physics, Igor S. Nefedov (2), Mikhail I. Shalaev (4), Sergey A. Myslivets (3), Siberian Branch of the Russian Academy of Sciences (4) Siberian Federal University), Vitaly V. Slabko (4) ((1) University of Wisconsin-Stevens Point

arxiv:1304.6811 v1 · 2013-04-25 · 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{BWDUIM5YHSHMRXUPASDIIFZZST}

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	2026-05-18T01:50:22.095351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d874433b83c8ec8de8f048684173994e3b020f86499ff48fd8a8d83069d6b53

Aliases

arxiv: 1304.6811 · arxiv_version: 1304.6811v1 · doi: 10.48550/arxiv.1304.6811 · pith_short_12: BWDUIM5YHSHM · pith_short_16: BWDUIM5YHSHMRXUP · pith_short_8: BWDUIM5Y

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/BWDUIM5YHSHMRXUPASDIIFZZST \
  | 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: 0d874433b83c8ec8de8f048684173994e3b020f86499ff48fd8a8d83069d6b53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6d3d05588e03286c78a3c82abdfa0d0e445456bc3a37a9be28593c3b6639ac0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2013-04-25T06:12:41Z",
    "title_canon_sha256": "dfb7877d7220a38feea86ee8995c4191ee084df627b67e36c5e37998c13a3e1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.6811",
    "kind": "arxiv",
    "version": 1
  }
}