Pith Number

pith:QKMZFPQH

pith:2020:QKMZFPQHMERWFILMBY5NNJ5IZC

not attested not anchored not stored refs pending

An Agile Very Low Frequency Radio Spectrum Explorer

Lihong Geng, Linjie Chen, Qiuxiang Fan, S. K. Bisoi, Yihua Yan

arxiv:2010.05158 v2 · 2020-10-11 · 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{QKMZFPQHMERWFILMBY5NNJ5IZC}

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	2026-07-05T02:45:17.095860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

829992be07612362a16c0e3ad6a7a8c8aad18604fb7d29ee9a44d2d85693bab8

Aliases

arxiv: 2010.05158 · arxiv_version: 2010.05158v2 · doi: 10.48550/arxiv.2010.05158 · pith_short_12: QKMZFPQHMERW · pith_short_16: QKMZFPQHMERWFILM · pith_short_8: QKMZFPQH

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/QKMZFPQHMERWFILMBY5NNJ5IZC \
  | 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: 829992be07612362a16c0e3ad6a7a8c8aad18604fb7d29ee9a44d2d85693bab8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1beed87985f8b12c0b35d92ed43e892305ee0d56c2d53576cda2abfb02d08c25",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-10-11T04:10:26Z",
    "title_canon_sha256": "605ef3c818257265e8176c0f1fa055b243e2fe7d47c4585021d3d4867e21e050"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.05158",
    "kind": "arxiv",
    "version": 2
  }
}