Pith Number

pith:EK333KPE

pith:2001:EK333KPEVKFQV6P2572FDNG3SC

not attested not anchored not stored refs pending

X-Ray Probing of the Central Regions of Clusters of Galaxies

Haiguang Xu, Hajime Ezawa, Hirohiko Honda, Kazuhiro Nakazawa, Kazuo Makishima, Ken'ichi Kikuchi, Kyoko Matsushita, Tadayuki Takahashi, Takaya Ohashi, Takayuki Tamura, Tuneyoshi Kamae, Yasushi Fukazawa, Yasushi Ikebe

arxiv:astro-ph/0104079 v1 · 2001-04-04 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EK333KPEVKFQV6P2572FDNG3SC}

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	2026-05-18T01:40:44.677102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22b7bda9e4aa8b0af9faeff451b4db908343633d1a6e70a5d8eefae286dd2260

Aliases

arxiv: astro-ph/0104079 · arxiv_version: astro-ph/0104079v1 · doi: 10.48550/arxiv.astro-ph/0104079 · pith_short_12: EK333KPEVKFQ · pith_short_16: EK333KPEVKFQV6P2 · pith_short_8: EK333KPE

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/EK333KPEVKFQV6P2572FDNG3SC \
  | 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: 22b7bda9e4aa8b0af9faeff451b4db908343633d1a6e70a5d8eefae286dd2260

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8d7eb2b3584ac8c0f4af8c716a0ec640061870e872c2bde195ff3fcbd90abd4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-04-04T13:22:20Z",
    "title_canon_sha256": "baaf88e2060fb1e7602f4ec5df0d0cd052f563d6634ffc8bbf4b1e2d773281ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0104079",
    "kind": "arxiv",
    "version": 1
  }
}