Pith Number

pith:WBP6OAP5

pith:1999:WBP6OAP53GOBZLGWCSUPKU3FAO

not attested not anchored not stored refs pending

Radiation mechanisms and geometry of Cygnus X-1 in the soft state

A. A. Zdziarski, J. Poutanen, K. Ebisawa, M. Gierlinski, P. S. Coppi, W. N. Johnson

arxiv:astro-ph/9905146 v2 · 1999-05-12 · 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{WBP6OAP53GOBZLGWCSUPKU3FAO}

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	2026-07-04T16:11:12.282480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b05fe701fdd99c1cacd614a8f5536503b34dab577590a69c2db07ee771d8a471

Aliases

arxiv: astro-ph/9905146 · arxiv_version: astro-ph/9905146v2 · doi: 10.48550/arxiv.astro-ph/9905146 · pith_short_12: WBP6OAP53GOB · pith_short_16: WBP6OAP53GOBZLGW · pith_short_8: WBP6OAP5

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/WBP6OAP53GOBZLGWCSUPKU3FAO \
  | 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: b05fe701fdd99c1cacd614a8f5536503b34dab577590a69c2db07ee771d8a471

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "096c32007ca3994b9b90f284ae33c4b846931f368618103fc1fe2bf66d686a4d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-05-12T18:53:13Z",
    "title_canon_sha256": "64929020f7dc9da60a8b96b293a5dad2499d3365f0febfdd288263dd9c17f8a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9905146",
    "kind": "arxiv",
    "version": 2
  }
}