Pith Number

pith:DOAU223X

pith:1997:DOAU223X5TGGKT7442GPATBDES

not attested not anchored not stored refs pending

Complex outburst behaviour from the black-hole candidate 4U 1630-47

A.N. Parmar, E. Kuulkers, L.R. Cominsky, R.K. Sood, S. Kitamoto

arxiv:astro-ph/9706135 v1 · 1997-06-13 · 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{DOAU223X5TGGKT7442GPATBDES}

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

Spectro-temporal Investigation of Quasi-periodic Oscillations From Black Hole X-ray Binary 4U 1630-472 Using $\textit{NICER}$

Receipt and verification

First computed	2026-05-18T01:40:17.325137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b814d6b77eccc654ffce68cf04c23248aee4e38140f920d0997394b2cbbb968

Aliases

arxiv: astro-ph/9706135 · arxiv_version: astro-ph/9706135v1 · doi: 10.48550/arxiv.astro-ph/9706135 · pith_short_12: DOAU223X5TGG · pith_short_16: DOAU223X5TGGKT74 · pith_short_8: DOAU223X

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/DOAU223X5TGGKT7442GPATBDES \
  | 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: 1b814d6b77eccc654ffce68cf04c23248aee4e38140f920d0997394b2cbbb968

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0281f5690cee10bcdab1464447b768d634efa31255009a0749fae2ae08c47279",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-06-13T19:02:34Z",
    "title_canon_sha256": "2e018bd1d03626853f38a6e9c3936c5e403e8f12fd10a7c22aed80417e9896db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9706135",
    "kind": "arxiv",
    "version": 1
  }
}