Pith Number

pith:LKXPHW3C

pith:2009:LKXPHW3CROINGC2SWTPXWUHCJE

not attested not anchored not stored refs pending

Line-of-sight Shell Structure of the Cygnus Loop

Hiroaki Takahashi, Hiroko Kosugi, Hiroshi Tsunemi, Hiroyuki Uchida, Masashi Kimura, Satoru Katsuda

arxiv:0910.3731 v1 · 2009-10-20 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LKXPHW3CROINGC2SWTPXWUHCJE}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T04:29:35.189426Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5aaef3db628b90d30b52b4df7b50e249288b7cdadcc7dc566f7f5992c6d2e8f9

Aliases

arxiv: 0910.3731 · arxiv_version: 0910.3731v1 · doi: 10.48550/arxiv.0910.3731 · pith_short_12: LKXPHW3CROIN · pith_short_16: LKXPHW3CROINGC2S · pith_short_8: LKXPHW3C

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/LKXPHW3CROINGC2SWTPXWUHCJE \
  | 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: 5aaef3db628b90d30b52b4df7b50e249288b7cdadcc7dc566f7f5992c6d2e8f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3aa47bf05be9284e7f276c943447ad457be06da98188e9dda8dd9aa3f58bb91",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-10-20T02:43:24Z",
    "title_canon_sha256": "5996a1c21658a51486cc2a7937385d6d373817ad4a0c69ac0315678954eae926"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.3731",
    "kind": "arxiv",
    "version": 1
  }
}