Pith Number

pith:4ZB3R5DC

pith:2018:4ZB3R5DCETDU4A5OM4JO4WVZR7

not attested not anchored not stored refs pending

Volumetric 3D-printed antennas, manufactured via selective polymer metallization

Amir Boag, Andrey Shmidt, Dmitry Filonov, Pavel Ginzburg, Sergey Kolen, Yosi Shacham

arxiv:1812.04080 v1 · 2018-11-09 · 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{4ZB3R5DCETDU4A5OM4JO4WVZR7}

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	2026-05-17T23:42:25.857484Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e643b8f46224c74e03ae6712ee5ab98ffe43a3312ac4ebdd1d4c07ce8051b728

Aliases

arxiv: 1812.04080 · arxiv_version: 1812.04080v1 · doi: 10.48550/arxiv.1812.04080 · pith_short_12: 4ZB3R5DCETDU · pith_short_16: 4ZB3R5DCETDU4A5O · pith_short_8: 4ZB3R5DC

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/4ZB3R5DCETDU4A5OM4JO4WVZR7 \
  | 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: e643b8f46224c74e03ae6712ee5ab98ffe43a3312ac4ebdd1d4c07ce8051b728

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c99d1427e2f63de8e5205439d4c8da06128a525f4e0e4b91206196847b210f21",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2018-11-09T21:04:55Z",
    "title_canon_sha256": "2ee04f2d67fa65ec9ae41f32d41e73acabc142ec118e228d1df230c7cdd40794"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.04080",
    "kind": "arxiv",
    "version": 1
  }
}