Pith Number

pith:Q4U5BY2V

pith:2002:Q4U5BY2VOLFAVJZ6CXQQSY4UCZ

not attested not anchored not stored refs pending

The 2002 outburst of the microquasar XTE J1550-564

A.P. Colombo, Italy), J. Homan, Merate, M. van der Klis (Astronomical Institute, S. Campana (Osservatorio Astronomico di Brera, T. Belloni, the Netherlands), University of Amsterdam

arxiv:astro-ph/0208131 v1 · 2002-08-06 · 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{Q4U5BY2VOLFAVJZ6CXQQSY4UCZ}

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	2026-07-04T14:12:09.273489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8729d0e35572ca0aa73e15e109639416576a81fdb3f28548c97fe9b9439753fc

Aliases

arxiv: astro-ph/0208131 · arxiv_version: astro-ph/0208131v1 · doi: 10.48550/arxiv.astro-ph/0208131 · pith_short_12: Q4U5BY2VOLFA · pith_short_16: Q4U5BY2VOLFAVJZ6 · pith_short_8: Q4U5BY2V

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/Q4U5BY2VOLFAVJZ6CXQQSY4UCZ \
  | 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: 8729d0e35572ca0aa73e15e109639416576a81fdb3f28548c97fe9b9439753fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0af2104058e2b6ad2e29841f899c23394ac7d3b46f33c8088e7ab3dea6fbc298",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-08-06T17:27:26Z",
    "title_canon_sha256": "1eadf22bbfa5e828ad235a593e1686f3f2fbb02ea5f4064cc3fe19030fe2422f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0208131",
    "kind": "arxiv",
    "version": 1
  }
}