Pith Number

pith:2R7QZMQ3

pith:2003:2R7QZMQ34GKDWNAEF26A37SCGN

not attested not anchored not stored refs pending

XMM-Newton observations of the Perseus Cluster I: The temperature and surface brightness structure

C.Jones (CfA), E.Churazov (MPA, H.B\"ohringer (MPE), IKI), W.Forman (CfA)

arxiv:astro-ph/0301482 v1 · 2003-01-23 · 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{2R7QZMQ34GKDWNAEF26A37SCGN}

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	2026-05-18T01:09:03.513833Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d47f0cb21be1943b34042ebc0dfe4233611558e8ccb5596c2223e20007b363d2

Aliases

arxiv: astro-ph/0301482 · arxiv_version: astro-ph/0301482v1 · doi: 10.48550/arxiv.astro-ph/0301482 · pith_short_12: 2R7QZMQ34GKD · pith_short_16: 2R7QZMQ34GKDWNAE · pith_short_8: 2R7QZMQ3

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/2R7QZMQ34GKDWNAEF26A37SCGN \
  | 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: d47f0cb21be1943b34042ebc0dfe4233611558e8ccb5596c2223e20007b363d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "766a7ca6e72f5b2cd6c09efe5f0e543a6a8eaf155e5a14be9b01e011a938f7a2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-01-23T21:14:36Z",
    "title_canon_sha256": "41e8765a616148776261e11059b724f88a783df2e0c262a387e34626b00ebffc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0301482",
    "kind": "arxiv",
    "version": 1
  }
}