Pith Number

pith:XLN3IPJE

pith:2008:XLN3IPJELQ2GGHRJEP5EUNZVPF

not attested not anchored not stored refs pending

Effect of Helium Sedimentation on X-ray Measurements of Galaxy Clusters

Daisuke Nagai, Fang Peng

arxiv:0808.3769 v3 · 2008-08-27 · 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{XLN3IPJELQ2GGHRJEP5EUNZVPF}

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	2026-05-18T04:29:32.968966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

badbb43d245c34631e2923fa4a37357971de35a011aacfca092e8b2ffeec9e3a

Aliases

arxiv: 0808.3769 · arxiv_version: 0808.3769v3 · doi: 10.48550/arxiv.0808.3769 · pith_short_12: XLN3IPJELQ2G · pith_short_16: XLN3IPJELQ2GGHRJ · pith_short_8: XLN3IPJE

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/XLN3IPJELQ2GGHRJEP5EUNZVPF \
  | 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: badbb43d245c34631e2923fa4a37357971de35a011aacfca092e8b2ffeec9e3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6897a14b1ba3502f24b354a95fba9332b0a0e6b729fa2cb8fc280b190e0da65b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-08-27T20:00:31Z",
    "title_canon_sha256": "ab1f3589dc784c46612ffb048436452d6c93f6a99f30c25b56050f3d74a0bf6b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.3769",
    "kind": "arxiv",
    "version": 3
  }
}