Pith Number

pith:MZEK3LFM

pith:1997:MZEK3LFM34SBKVFV6ZTLBPBDWI

not attested not anchored not stored refs pending

Discovery of a second kHz QPO peak in 4U 1608-52

B.A. Vaughan (Caltech), D. Psaltis (Harvard/CfA), E. Kuulkers (University of Oxford), F. K. Lamb (University of Illinois), J. van Paradijs (University of Amsterdam), M. Mendez, M. van der Klis, W.H.G. Lewin (MIT), W. Zhang (NASA/GSFC)

arxiv:astro-ph/9712085 v1 · 1997-12-05 · 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{MZEK3LFM34SBKVFV6ZTLBPBDWI}

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.

Cited by

1 paper in Pith

Tracing the outburst decay of soft X-ray transients Aql X-1 and 4U 1608-52 with XSPECT

Receipt and verification

First computed	2026-07-04T16:03:31.095730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6648adacacdf241554b5f666b0bc23b21389880978b26788b13cdced65bf7e55

Aliases

arxiv: astro-ph/9712085 · arxiv_version: astro-ph/9712085v1 · doi: 10.48550/arxiv.astro-ph/9712085 · pith_short_12: MZEK3LFM34SB · pith_short_16: MZEK3LFM34SBKVFV · pith_short_8: MZEK3LFM

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/MZEK3LFM34SBKVFV6ZTLBPBDWI \
  | 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: 6648adacacdf241554b5f666b0bc23b21389880978b26788b13cdced65bf7e55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71a882c82fa1e417467956e098ce393905cbae062bd48898c8252e054bfc542b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-12-05T17:53:49Z",
    "title_canon_sha256": "1c827572ff76f2ef1ceeb6f714cbd2218d674fe8824c2e4ea1618fdfa16c086b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9712085",
    "kind": "arxiv",
    "version": 1
  }
}