Pith Number

pith:HYGWST27

pith:1999:HYGWST27SBLYRX5TV2XLQ22J2T

not attested not anchored not stored refs pending

Gas, Iron and Gravitational Mass in Galaxy Clusters: The General Lack of Cluster Evolution at z < 1.0

(2) Kyoto Univ., (3) Univ. of Tokyo, (4) Tohoku Univ.), David S. Davis (1) ((1)MIT, Hironori Matsumoto (1), Makoto Hattori (4), Takeshi Go Tsuru (2), Yasushi Fukazawa (3)

arxiv:astro-ph/9911388 v1 · 1999-11-19 · astro-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{HYGWST27SBLYRX5TV2XLQ22J2T}

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	2026-05-18T01:40:12.391301Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e0d694f5f905788dfb3aeaeb86b49d4f8998c67c019b029dbd6427487145b28

Aliases

arxiv: astro-ph/9911388 · arxiv_version: astro-ph/9911388v1 · doi: 10.48550/arxiv.astro-ph/9911388 · pith_short_12: HYGWST27SBLY · pith_short_16: HYGWST27SBLYRX5T · pith_short_8: HYGWST27

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/HYGWST27SBLYRX5TV2XLQ22J2T \
  | 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: 3e0d694f5f905788dfb3aeaeb86b49d4f8998c67c019b029dbd6427487145b28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9eb15fa6055d385e7f56304daa4ab577db4fe63b184426f076091757bdedb98d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-11-19T23:08:54Z",
    "title_canon_sha256": "6d1c18a6c336945c63c9b03739da7e704f5323241193519fdb8c06c6094e421f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9911388",
    "kind": "arxiv",
    "version": 1
  }
}