Pith Number

pith:J2B7GIFA

pith:2018:J2B7GIFASQ54VPSQYMGO4REAAV

not attested not anchored not stored refs pending

3D Conductive Polymer Printed Metasurface Antenna for Fresnel Focusing

Benjamin J. Wiley, Daniel L. Marks, David R. Smith, Okan Yurduseven, Shengrong Ye, Thomas Fromenteze

arxiv:1806.00394 v1 · 2018-06-01 · physics.app-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J2B7GIFASQ54VPSQYMGO4REAAV}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:14:23.785080Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e83f320a0943bcabe50c30cee4480057f530cf660181b649fdf58d0a39ec0f2

Aliases

arxiv: 1806.00394 · arxiv_version: 1806.00394v1 · doi: 10.48550/arxiv.1806.00394 · pith_short_12: J2B7GIFASQ54 · pith_short_16: J2B7GIFASQ54VPSQ · pith_short_8: J2B7GIFA

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/J2B7GIFASQ54VPSQYMGO4REAAV \
  | 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: 4e83f320a0943bcabe50c30cee4480057f530cf660181b649fdf58d0a39ec0f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7cecbe58ca78c2b66d1e83862c9f9f1477fdcd4cd2dcd4f011cfeb5165df661",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2018-06-01T15:28:58Z",
    "title_canon_sha256": "acaf0cd345bb5b2fca7254b58a271dee8bd3641a708ba82bccd57a737162df5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.00394",
    "kind": "arxiv",
    "version": 1
  }
}