Pith Number

pith:QAIXNKSB

pith:2001:QAIXNKSBGPMNN2ETOMU7PEX3VX

not attested not anchored not stored refs pending

Spectral variability of Ultra Luminous Compact X-ray Sources in Nearby Spiral Galaxies

A. Kubota, K. Makishima, T. Mizuno

arxiv:astro-ph/0102065 v1 · 2001-02-05 · 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{QAIXNKSBGPMNN2ETOMU7PEX3VX}

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	2026-07-04T16:22:40.079208Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

801176aa4133d8d6e8937329f792fbadd559adbfd26e87d0868e27cda249e9d3

Aliases

arxiv: astro-ph/0102065 · arxiv_version: astro-ph/0102065v1 · doi: 10.48550/arxiv.astro-ph/0102065 · pith_short_12: QAIXNKSBGPMN · pith_short_16: QAIXNKSBGPMNN2ET · pith_short_8: QAIXNKSB

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/QAIXNKSBGPMNN2ETOMU7PEX3VX \
  | 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: 801176aa4133d8d6e8937329f792fbadd559adbfd26e87d0868e27cda249e9d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fed26265cc010387b3cb10526b6f383ae5080df2e0535958063c47b562746191",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-02-05T01:36:37Z",
    "title_canon_sha256": "7ffcd8628a6902d2bb59213c0b98447462d5c0251cd78ac775aab8708ef8c3ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0102065",
    "kind": "arxiv",
    "version": 1
  }
}