Pith Number

pith:S2S7FKR4

pith:1998:S2S7FKR4X2XSFGBBXMU3X35UGP

not attested not anchored not stored refs pending

Evolution of AQL X-1 During the Rising Phase of its 1998 Outburst

(2) CESR, (3) MSFC, (4) GSFC), Didier Barret(2), Jean Swank (4) ((1) MIT, Laurence Boirin (2), S. N. Zhang (3), Wan Chen (4), Wei Cui (1)

arxiv:astro-ph/9806052 v1 · 1998-06-03 · 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{S2S7FKR4X2XSFGBBXMU3X35UGP}

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	2026-07-04T16:06:43.959801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96a5f2aa3cbeaf229821bb29bbefb433e24d0f1654a251a9399831dccd32596f

Aliases

arxiv: astro-ph/9806052 · arxiv_version: astro-ph/9806052v1 · doi: 10.48550/arxiv.astro-ph/9806052 · pith_short_12: S2S7FKR4X2XS · pith_short_16: S2S7FKR4X2XSFGBB · pith_short_8: S2S7FKR4

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/S2S7FKR4X2XSFGBBXMU3X35UGP \
  | 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: 96a5f2aa3cbeaf229821bb29bbefb433e24d0f1654a251a9399831dccd32596f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91a65a65cfb807de8f1225dd790600ebf607279590e6b287972c288c1b674168",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-06-03T16:48:00Z",
    "title_canon_sha256": "efc3e490b784c2fbf27cb9e313ebd59157ca5f8e3c0c17c8424c8025c340830e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9806052",
    "kind": "arxiv",
    "version": 1
  }
}