Pith Number

pith:5R52DXPA

pith:2018:5R52DXPAUKSJ4PET5AEEILNTMH

not attested not anchored not stored refs pending

High-efficiency Ventilated Metamaterial Absorber at Low Frequency

Chuandeng Hu, Jingxuan Tian, Ka Yan Au-Yeung, Robert Christopher Roberts, Shuxia Wang, Weijia Wen, Xiaoxiao Wu, Xin Li, Yingzhou Huang, Zhiyu Yang

arxiv:1801.03613 v2 · 2018-01-11 · physics.app-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5R52DXPAUKSJ4PET5AEEILNTMH}

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	2026-05-18T00:21:34.286216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec7ba1dde0a2a49e3c93e808442db361f3d34889b89c97a3b453dc7e27737828

Aliases

arxiv: 1801.03613 · arxiv_version: 1801.03613v2 · doi: 10.48550/arxiv.1801.03613 · pith_short_12: 5R52DXPAUKSJ · pith_short_16: 5R52DXPAUKSJ4PET · pith_short_8: 5R52DXPA

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/5R52DXPAUKSJ4PET5AEEILNTMH \
  | 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: ec7ba1dde0a2a49e3c93e808442db361f3d34889b89c97a3b453dc7e27737828

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31f16aee2927d6342680150f441decc431fb86668417738a674e995e7ec055d3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2018-01-11T02:16:15Z",
    "title_canon_sha256": "133b073c28f7d24bf31022687cc8f5b781411d0a31fe872eb482c1ae7912dc33"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.03613",
    "kind": "arxiv",
    "version": 2
  }
}