Pith Number

pith:IK4IVQYW

pith:2022:IK4IVQYWAAYZTU6SW7FWW5FRUH

not attested not anchored not stored refs pending

Measurement of the vertical atmospheric density profile from the X-ray Earth occultation of the Crab Nebula with Insight-HXMT

Aoying Wang, Baoquan Li, Bingxian Luo, Daochun Yu, Haitao Li, Mingyu Ge, Wangchen Xue, Xiaobo Li, Yajun Zhu, Yaning Liu, YouLi Tuo

arxiv:2204.09674 v1 · 2022-04-21 · astro-ph.EP · astro-ph.HE · 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{IK4IVQYWAAYZTU6SW7FWW5FRUH}

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	2026-07-05T06:07:20.300256Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42b88ac316003199d3d2b7cb6b74b1a1e901e137b69f8e8e27f03e058057f2d8

Aliases

arxiv: 2204.09674 · arxiv_version: 2204.09674v1 · doi: 10.48550/arxiv.2204.09674 · pith_short_12: IK4IVQYWAAYZ · pith_short_16: IK4IVQYWAAYZTU6S · pith_short_8: IK4IVQYW

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/IK4IVQYWAAYZTU6SW7FWW5FRUH \
  | 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: 42b88ac316003199d3d2b7cb6b74b1a1e901e137b69f8e8e27f03e058057f2d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c14fea348ad3f393e70731366311d645c5403dded27c1a5d9eb6f9a098ee3aa7",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2022-04-21T15:31:44Z",
    "title_canon_sha256": "83ecb0e15396d077a9dd9b79d7b11c9849d1e454575c41110d033f8615e223e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.09674",
    "kind": "arxiv",
    "version": 1
  }
}