Pith Number

pith:7S2QRZPR

pith:2006:7S2QRZPRHIXXKROI7UGMEKBZZX

not attested not anchored not stored refs pending

Variability of ultraluminous X-ray sources in the Cartwheel Ring

(2) Universita' degli Studi di Milano Bicocca), A. Wolter (1), G. Trinchieri (1), M. Colpi (2) ((1) INAF-OABr

arxiv:astro-ph/0611437 v1 · 2006-11-14 · 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{7S2QRZPRHIXXKROI7UGMEKBZZX}

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	2026-05-18T01:40:28.904484Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fcb508e5f13a2f7545c8fd0cc22839cdd6ca5317416a87f1300f8722722aac31

Aliases

arxiv: astro-ph/0611437 · arxiv_version: astro-ph/0611437v1 · doi: 10.48550/arxiv.astro-ph/0611437 · pith_short_12: 7S2QRZPRHIXX · pith_short_16: 7S2QRZPRHIXXKROI · pith_short_8: 7S2QRZPR

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/7S2QRZPRHIXXKROI7UGMEKBZZX \
  | 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: fcb508e5f13a2f7545c8fd0cc22839cdd6ca5317416a87f1300f8722722aac31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4f712bff497bcd69697f8d042ed63591f90d42fe2132e9c2ed553daec4cd2a9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-11-14T16:24:53Z",
    "title_canon_sha256": "41072e3a562fe2b03453439e913483b6544ce002b20fae593ab3cc3370d5ecb1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0611437",
    "kind": "arxiv",
    "version": 1
  }
}