Pith Number

pith:2KGY2Y6I

pith:2018:2KGY2Y6ISTVIZYYLECRKNRALWF

not attested not anchored not stored refs pending

High Forbidden-to-resonance Line Ratio of OVII Discovered in the Cygnus Loop

H. Tsunemi, H. Uchida, K. Mori, L. Gu, R. Petre, R. S. Cumbee, S. Katsuda, T. Tanaka

arxiv:1812.06616 v1 · 2018-12-17 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2KGY2Y6ISTVIZYYLECRKNRALWF}

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	2026-05-17T23:54:08.171581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d28d8d63c894ea8ce30b20a2a6c40bb144e876e4332bb62d9d8680344f4400b0

Aliases

arxiv: 1812.06616 · arxiv_version: 1812.06616v1 · doi: 10.48550/arxiv.1812.06616 · pith_short_12: 2KGY2Y6ISTVI · pith_short_16: 2KGY2Y6ISTVIZYYL · pith_short_8: 2KGY2Y6I

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/2KGY2Y6ISTVIZYYLECRKNRALWF \
  | 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: d28d8d63c894ea8ce30b20a2a6c40bb144e876e4332bb62d9d8680344f4400b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96c9f17ed11587a54b241591b4145ccb40ae01363180e16298a1babc85445a53",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-12-17T05:00:46Z",
    "title_canon_sha256": "4d7293c94e19ba1297048dccab34f086b417a72780b738e512c2860b5259e63a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.06616",
    "kind": "arxiv",
    "version": 1
  }
}