Pith Number

pith:XSYZF4VN

pith:2021:XSYZF4VN6DAJDW4GV3B2H5IQW4

not attested not anchored not stored refs pending

Harnessing superdirectivity in dielectric spherical multilayer antennas

Alexander Moroz, Alexey Shcherbakov, Ilia L. Rasskazov, Konstantin Ladutenko, Pavel Belov, Roman Gaponenko

arxiv:2104.00534 v2 · 2021-03-15 · physics.app-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{XSYZF4VN6DAJDW4GV3B2H5IQW4}

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	2026-07-05T03:39:47.959085Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcb192f2adf0c091db86aec3a3f510b721d79ff7aefca1abfc06cf1c2dc55ec4

Aliases

arxiv: 2104.00534 · arxiv_version: 2104.00534v2 · doi: 10.48550/arxiv.2104.00534 · pith_short_12: XSYZF4VN6DAJ · pith_short_16: XSYZF4VN6DAJDW4G · pith_short_8: XSYZF4VN

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/XSYZF4VN6DAJDW4GV3B2H5IQW4 \
  | 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: bcb192f2adf0c091db86aec3a3f510b721d79ff7aefca1abfc06cf1c2dc55ec4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37ef582c126a1cfe1c90f4b44c4451a27530c1b24b8ad0ba58d20f0b7dcd3b86",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2021-03-15T16:50:38Z",
    "title_canon_sha256": "3f05b86e3ac4d2bb25463047bfc35bbe8bdd8ec6edc7423275d94cfea99a7363"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.00534",
    "kind": "arxiv",
    "version": 2
  }
}