Pith Number

pith:G4GJQCBP

pith:2007:G4GJQCBPNAAWHR4PIB3L44Z4PF

not attested not anchored not stored refs pending

Spitzer Space Telescope observations of magnetic cataclysmic variables: possibilities for the presence of dust in polars

A. A. Esin, C. S. Brinkworth, D. R. Ciardi, D. W. Hoard, G. T. van Belle, P. Szkody, S. B. Howell, S. Wachter, T. E. Harrison

arxiv:astro-ph/0701307 v1 · 2007-01-10 · 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{G4GJQCBPNAAWHR4PIB3L44Z4PF}

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	2026-05-18T04:29:07.472479Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

370c98082f680163c78f4076be733c796717368fb0e105290b42d810d90fe040

Aliases

arxiv: astro-ph/0701307 · arxiv_version: astro-ph/0701307v1 · doi: 10.48550/arxiv.astro-ph/0701307 · pith_short_12: G4GJQCBPNAAW · pith_short_16: G4GJQCBPNAAWHR4P · pith_short_8: G4GJQCBP

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/G4GJQCBPNAAWHR4PIB3L44Z4PF \
  | 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: 370c98082f680163c78f4076be733c796717368fb0e105290b42d810d90fe040

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f80daae562dc774107fcec7452424c3f2737d309c32b83be13a1a6a06541907",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-01-10T18:00:56Z",
    "title_canon_sha256": "db16555093ed908fb2ff8a86afff5279f5645fc038dc98143f7a0fae98c50a6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0701307",
    "kind": "arxiv",
    "version": 1
  }
}