Pith Number

pith:4UFAU634

pith:2023:4UFAU634NBU7DXV2ARUW4J53Z5

not attested not anchored not stored refs pending

Overcoming losses in superlenses with synthetic waves of complex frequency

Fuxin Guan, John B. Pendry, Kebo Zeng, Qing Dai, Shaojie Ma, Shuang Zhang, Xiangdong Guo, Xiang Zhang, Zhaoyu Nie

arxiv:2303.16081 v1 · 2023-03-22 · physics.class-ph · 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{4UFAU634NBU7DXV2ARUW4J53Z5}

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	2026-07-05T05:55:31.614133Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e50a0a7b7c6869f1deba04696e27bbcf41e326da5311c4ae2f35f811b1bd7b48

Aliases

arxiv: 2303.16081 · arxiv_version: 2303.16081v1 · doi: 10.48550/arxiv.2303.16081 · pith_short_12: 4UFAU634NBU7 · pith_short_16: 4UFAU634NBU7DXV2 · pith_short_8: 4UFAU634

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/4UFAU634NBU7DXV2ARUW4J53Z5 \
  | 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: e50a0a7b7c6869f1deba04696e27bbcf41e326da5311c4ae2f35f811b1bd7b48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f1cb8d3e2f1155bb551562f00b11fbf17a195676822b9dd855fa33ba92ae1b2",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2023-03-22T12:37:42Z",
    "title_canon_sha256": "5be8b89597ea8375a0bb71295646a0bcd4a0a676a934f7263c3a296d5cd38438"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.16081",
    "kind": "arxiv",
    "version": 1
  }
}