Pith Number

pith:KOGZ2GK2

pith:2004:KOGZ2GK2D5PJT6NMLB6UMPVWUH

not attested not anchored not stored refs pending

Shot cutoff timescales in different spectral states of Cygnus X-1

Hua Feng, Shuang-Nan Zhang, Ti-Pei Li

arxiv:astro-ph/0407470 v1 · 2004-07-22 · 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{KOGZ2GK2D5PJT6NMLB6UMPVWUH}

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	2026-05-18T04:22:32.330280Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

538d9d195a1f5e99f9ac587d463eb6a1e07dd8bfe7efb1524fec2ca5198a0a45

Aliases

arxiv: astro-ph/0407470 · arxiv_version: astro-ph/0407470v1 · doi: 10.48550/arxiv.astro-ph/0407470 · pith_short_12: KOGZ2GK2D5PJ · pith_short_16: KOGZ2GK2D5PJT6NM · pith_short_8: KOGZ2GK2

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/KOGZ2GK2D5PJT6NMLB6UMPVWUH \
  | 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: 538d9d195a1f5e99f9ac587d463eb6a1e07dd8bfe7efb1524fec2ca5198a0a45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72afd23d07b4ef4d2c8eee226248a72c0deaae4c8122115dc3d4ab5209742d31",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-07-22T07:14:38Z",
    "title_canon_sha256": "e1d135a2f07e4ddbd96c73aa3a6243dce1e679145aa6323d6a0c21f15af2be32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0407470",
    "kind": "arxiv",
    "version": 1
  }
}