Pith Number

pith:HXFS3Z22

pith:2006:HXFS3Z222N3XSECXK7O57RSWN6

not attested not anchored not stored refs pending

The Lack of Halo Ultraluminous X-ray Sources

Douglas A. Swartz

arxiv:astro-ph/0609284 v1 · 2006-09-11 · 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{HXFS3Z222N3XSECXK7O57RSWN6}

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	2026-05-18T04:28:57.810972Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3dcb2de75ad37779105757dddfc6566f8680e98fb49f55dd7cfd50b48b72273d

Aliases

arxiv: astro-ph/0609284 · arxiv_version: astro-ph/0609284v1 · doi: 10.48550/arxiv.astro-ph/0609284 · pith_short_12: HXFS3Z222N3X · pith_short_16: HXFS3Z222N3XSECX · pith_short_8: HXFS3Z22

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/HXFS3Z222N3XSECXK7O57RSWN6 \
  | 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: 3dcb2de75ad37779105757dddfc6566f8680e98fb49f55dd7cfd50b48b72273d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "554463266e9611c1f4da5e2a0dca123234c106eb5c35d03e30dd359838da278c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-09-11T14:27:38Z",
    "title_canon_sha256": "9c41eba16586c67c03496d1731108c8ee818a739c45f1c8ad60081f11d82e049"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0609284",
    "kind": "arxiv",
    "version": 1
  }
}