Pith Number

pith:SBO4ZICZ

pith:2007:SBO4ZICZGH7HIDYMDW26FZRY5S

not attested not anchored not stored refs pending

A deeper X-ray study of the core of the Perseus galaxy cluster: the power of sound waves and the distribution of metals and cosmic rays

A. C. Fabian (Institute of Astronomy, Cambridge), J. S. Sanders

arxiv:0705.2712 v2 · 2007-05-18 · 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{SBO4ZICZGH7HIDYMDW26FZRY5S}

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	2026-07-04T17:03:53.248678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

905dcca05931fe740f0c1db5e2e638eca91dd24a50b760051668c78a7659d292

Aliases

arxiv: 0705.2712 · arxiv_version: 0705.2712v2 · doi: 10.48550/arxiv.0705.2712 · pith_short_12: SBO4ZICZGH7H · pith_short_16: SBO4ZICZGH7HIDYM · pith_short_8: SBO4ZICZ

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/SBO4ZICZGH7HIDYMDW26FZRY5S \
  | 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: 905dcca05931fe740f0c1db5e2e638eca91dd24a50b760051668c78a7659d292

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db157b8ea3547a2b72bb094bb0914251153dfa2366cd5d2cf8721dd977a4daac",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-05-18T16:16:56Z",
    "title_canon_sha256": "f2976c66d6445fdc8b006e14effc231ce2d4cea38bd9f9950b1a8261c825f521"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.2712",
    "kind": "arxiv",
    "version": 2
  }
}