Pith Number

pith:PBI5TMCB

pith:2018:PBI5TMCBQ7CGL35WCNNVL4IDPQ

not attested not anchored not stored refs pending

Antenna Design and Implementation for the Future Space Ultra-Long Wavelength Radio Telescope

Amin Aminaei, Hamid Reza Pourshaghaghi, Heino Falcke, Leonid I. Gurvits, Linjie Chen, Marc Klein Wolt, Yihua Yan

arxiv:1802.07640 v2 · 2018-02-21 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PBI5TMCBQ7CGL35WCNNVL4IDPQ}

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	2026-05-18T00:22:49.013086Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7851d9b04187c465efb6135b55f1037c3f4b5fee5fa99ddfaf55db02696761ed

Aliases

arxiv: 1802.07640 · arxiv_version: 1802.07640v2 · doi: 10.48550/arxiv.1802.07640 · pith_short_12: PBI5TMCBQ7CG · pith_short_16: PBI5TMCBQ7CGL35W · pith_short_8: PBI5TMCB

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/PBI5TMCBQ7CGL35WCNNVL4IDPQ \
  | 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: 7851d9b04187c465efb6135b55f1037c3f4b5fee5fa99ddfaf55db02696761ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef07f8094eb68076464832d16e086e8e78f33a768e1875c25b9f5bb8759c2d75",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-02-21T16:12:50Z",
    "title_canon_sha256": "35cdc7a54df8359e57f5ae5077e9288f744c0499aa1e41cb08606bfe79e68578"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.07640",
    "kind": "arxiv",
    "version": 2
  }
}