Pith Number

pith:4HWWZC5C

pith:2018:4HWWZC5CLZMAOVIIF2ATIIR2AG

not attested not anchored not stored refs pending

Analytical Design of Printed-Circuit-Board (PCB) Metagratings for Perfect Anomalous Reflection

Ariel Epstein, Oshri Rabinovich

arxiv:1801.04521 v1 · 2018-01-14 · 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{4HWWZC5CLZMAOVIIF2ATIIR2AG}

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	2026-05-18T00:13:10.567027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1ed6c8ba25e580755082e8134223a01b12e472c6af812ef8233840dd6ebe4ee

Aliases

arxiv: 1801.04521 · arxiv_version: 1801.04521v1 · doi: 10.48550/arxiv.1801.04521 · pith_short_12: 4HWWZC5CLZMA · pith_short_16: 4HWWZC5CLZMAOVII · pith_short_8: 4HWWZC5C

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/4HWWZC5CLZMAOVIIF2ATIIR2AG \
  | 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: e1ed6c8ba25e580755082e8134223a01b12e472c6af812ef8233840dd6ebe4ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08cd278bc59874213c5e392bd045ae4b275fbb07fa7d3a5f2ba2dfc30df91100",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2018-01-14T07:02:59Z",
    "title_canon_sha256": "1eaad3793124186ef28be66d5fbf1487b3c502465731804dbd8c4cbd2f788258"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.04521",
    "kind": "arxiv",
    "version": 1
  }
}