Pith Number

pith:UIJPK5YV

pith:2019:UIJPK5YV5KB6MYYSDQXQTJGU5J

not attested not anchored not stored refs pending

Gas Density Perturbations in Cool Cores of CLASH Galaxy Clusters

Keiichi Umetsu, Sandor M. Molnar, Shutaro Ueda, Tetsu Kitayama, Yuto Ichinohe

arxiv:1912.07300 v2 · 2019-12-16 · astro-ph.CO · astro-ph.GA · 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{UIJPK5YV5KB6MYYSDQXQTJGU5J}

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	2026-07-05T00:53:09.785655Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a212f57715ea83e663121c2f09a4d4ea7c452f1458b7b0d8eae0a02034ad7d2d

Aliases

arxiv: 1912.07300 · arxiv_version: 1912.07300v2 · doi: 10.48550/arxiv.1912.07300 · pith_short_12: UIJPK5YV5KB6 · pith_short_16: UIJPK5YV5KB6MYYS · pith_short_8: UIJPK5YV

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/UIJPK5YV5KB6MYYSDQXQTJGU5J \
  | 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: a212f57715ea83e663121c2f09a4d4ea7c452f1458b7b0d8eae0a02034ad7d2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95a4d6559874405b96ef72f68e2c6ea023b16d44ed5645b5787a7e9d4fee6c23",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-12-16T11:40:29Z",
    "title_canon_sha256": "f1b6686d96c8efb637444d6057dc1546347cedff5a710a51a42ae50cf530854a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.07300",
    "kind": "arxiv",
    "version": 2
  }
}