Pith Number

pith:DLIKQMEM

pith:2012:DLIKQMEMIB4TOU5EFRTXCKIOVS

not attested not anchored not stored refs pending

Radio astronomy with the Lunar Lander: opening up the last unexplored frequency regime

Albert-Jan Boonstra, Amin Aminaei, Heino Falcke, Jan-Rutger Schrader, Marc Klein Wolt, Philippe Zarka

arxiv:1209.3033 v1 · 2012-09-13 · 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{DLIKQMEMIB4TOU5EFRTXCKIOVS}

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	2026-05-18T01:54:29.250465Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ad0a8308c40793753a42c6771290eac9a19242af3e45a79c15faf1659b3c2f7

Aliases

arxiv: 1209.3033 · arxiv_version: 1209.3033v1 · doi: 10.48550/arxiv.1209.3033 · pith_short_12: DLIKQMEMIB4T · pith_short_16: DLIKQMEMIB4TOU5E · pith_short_8: DLIKQMEM

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/DLIKQMEMIB4TOU5EFRTXCKIOVS \
  | 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: 1ad0a8308c40793753a42c6771290eac9a19242af3e45a79c15faf1659b3c2f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e39f25e29cbc676408dd208a2fa649d5dfcefc9f0c1e269021f1ef4db805cd5d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-09-13T20:40:21Z",
    "title_canon_sha256": "f8548ae440fc77ef78dec87a34f4d67db93aa2db93f45a7a30d35c53d5a3ce14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.3033",
    "kind": "arxiv",
    "version": 1
  }
}