Pith Number

pith:JR23WHLN

pith:2008:JR23WHLNVUCSDJ5H4RULLZ6TZX

not attested not anchored not stored refs pending

2XMM J100451.6+411627: A cool core cluster at z=0.82

Axel Schwope, Georg Lamer, Jan Kohnert, Matthias Hoeft

arxiv:0809.2265 v1 · 2008-09-12 · 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{JR23WHLNVUCSDJ5H4RULLZ6TZX}

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	2026-07-04T15:14:17.234286Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c75bb1d6dad0521a7a7e468b5e7d3cdde5a051ad393498eec6e0cd6ac81a308

Aliases

arxiv: 0809.2265 · arxiv_version: 0809.2265v1 · doi: 10.48550/arxiv.0809.2265 · pith_short_12: JR23WHLNVUCS · pith_short_16: JR23WHLNVUCSDJ5H · pith_short_8: JR23WHLN

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/JR23WHLNVUCSDJ5H4RULLZ6TZX \
  | 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: 4c75bb1d6dad0521a7a7e468b5e7d3cdde5a051ad393498eec6e0cd6ac81a308

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b92ec68d50c04091f28949830836c027f036d237ff85046a2ab021e441bdf682",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-12T18:25:13Z",
    "title_canon_sha256": "4760c62d4e5df44e05d7aef54baa30f3fac3860c8b460157261209d05f14f875"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2265",
    "kind": "arxiv",
    "version": 1
  }
}