Pith Number

pith:VYSSCTER

pith:1998:VYSSCTER6LLSZI5FD73MP57ISF

not attested not anchored not stored refs pending

Discovery of Two Simultaneous Kilohertz QPOs in the Persistent Flux of GX 349+2

J. H. Swank (Goddard Space Flight Center), T. E. Strohmayer, W. Zhang

arxiv:astro-ph/9804225 v1 · 1998-04-22 · 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{VYSSCTER6LLSZI5FD73MP57ISF}

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	2026-07-04T16:06:19.591390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae25214c91f2d72ca3a51ff6c7f7e89174b34d527cf6f90e84d496f8792d9b33

Aliases

arxiv: astro-ph/9804225 · arxiv_version: astro-ph/9804225v1 · doi: 10.48550/arxiv.astro-ph/9804225 · pith_short_12: VYSSCTER6LLS · pith_short_16: VYSSCTER6LLSZI5F · pith_short_8: VYSSCTER

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/VYSSCTER6LLSZI5FD73MP57ISF \
  | 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: ae25214c91f2d72ca3a51ff6c7f7e89174b34d527cf6f90e84d496f8792d9b33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0a9c1b34fd64a97d1e25b4b57f8104b9ff64cd119c96559a8d240b86f8c46a1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-04-22T14:45:25Z",
    "title_canon_sha256": "a50e24ceb4434e481f24241c9188d314af1de402582741b24ac87816d403ecfd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9804225",
    "kind": "arxiv",
    "version": 1
  }
}