Pith Number

pith:6G4WRAMC

pith:2022:6G4WRAMCKRONYN7ZYPBUBLUPRZ

not attested not anchored not stored refs pending

Development of an electron impact ion source with high ionization efficiency for future planetary missions

Masafumi Hirahara, Naho Yanase, Naoki Yamamoto, Oya Kawashima, Satoshi Kasahara, Shoichiro Yokota, Yoshifumi Saito, Yoshihisa Okitsu, Yuzuru Karouji

arxiv:2205.00246 v2 · 2022-04-30 · astro-ph.EP · astro-ph.IM · physics.space-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{6G4WRAMCKRONYN7ZYPBUBLUPRZ}

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	2026-07-05T04:48:49.933054Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1b9688182545cdc37f9c3c340ae8f8e4669672d2ec2563b436731a2303de0f5

Aliases

arxiv: 2205.00246 · arxiv_version: 2205.00246v2 · doi: 10.48550/arxiv.2205.00246 · pith_short_12: 6G4WRAMCKRON · pith_short_16: 6G4WRAMCKRONYN7Z · pith_short_8: 6G4WRAMC

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/6G4WRAMCKRONYN7ZYPBUBLUPRZ \
  | 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: f1b9688182545cdc37f9c3c340ae8f8e4669672d2ec2563b436731a2303de0f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b012087b2c92983ebf9d279ad48e2ea918f1562cc63a38112ca85f865b45f695",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "physics.space-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2022-04-30T11:44:37Z",
    "title_canon_sha256": "ef08dd8863d12d69ae4a2e9b98c23afb48c8447e23ef01d45aa030a1e6f18b89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.00246",
    "kind": "arxiv",
    "version": 2
  }
}