Pith Number

pith:VU2QPZUT

pith:1999:VU2QPZUTBSPUADOQLZZYZAHGPU

not attested not anchored not stored refs pending

Similar Shot Noise in Cyg X-1, GRO J0422+32 and 1E 1724-3045

Tipei Li, Wenfei Yu

arxiv:astro-ph/9903106 v1 · 1999-03-08 · 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{VU2QPZUTBSPUADOQLZZYZAHGPU}

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	2026-05-18T01:07:36.550953Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad3507e6930c9f400dd05e738c80e67d1983c4b63ae0b2150532573cfa9a0f9d

Aliases

arxiv: astro-ph/9903106 · arxiv_version: astro-ph/9903106v1 · doi: 10.48550/arxiv.astro-ph/9903106 · pith_short_12: VU2QPZUTBSPU · pith_short_16: VU2QPZUTBSPUADOQ · pith_short_8: VU2QPZUT

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/VU2QPZUTBSPUADOQLZZYZAHGPU \
  | 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: ad3507e6930c9f400dd05e738c80e67d1983c4b63ae0b2150532573cfa9a0f9d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfe2bb142ac9b1b06419f99c912b2537c4a4c5a230a7f48d322335861386a633",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-03-08T14:46:52Z",
    "title_canon_sha256": "09111aff1ebd794a25fc67e052acc693c9d3874eebb3a0e02d51b4ed0378f5a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9903106",
    "kind": "arxiv",
    "version": 1
  }
}