Pith Number

pith:2NPBNMUL

pith:1999:2NPBNMULY4PHDKEFEXWT6MIIV5

not attested not anchored not stored refs pending

Linear and nonlinear time series analysis of the black hole candidate Cygnus X-1

G. Hasinger, H.U. Voss, I. Wardinski, J. Timmer, Juergen Kurths, M. van der Klis, T. Belloni, U. Schwarz

arxiv:chao-dyn/9911013 v1 · 1999-11-10 · chao-dyn · astro-ph · nlin.CD

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2NPBNMULY4PHDKEFEXWT6MIIV5}

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	2026-07-04T16:12:09.027067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d35e16b28bc71e71a88525ed3f3108af74c2834540e4a44896ef162a69980e93

Aliases

arxiv: chao-dyn/9911013 · arxiv_version: chao-dyn/9911013v1 · doi: 10.48550/arxiv.chao-dyn/9911013 · pith_short_12: 2NPBNMULY4PH · pith_short_16: 2NPBNMULY4PHDKEF · pith_short_8: 2NPBNMUL

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/2NPBNMULY4PHDKEFEXWT6MIIV5 \
  | 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: d35e16b28bc71e71a88525ed3f3108af74c2834540e4a44896ef162a69980e93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7808403e906f68f74c3df90fa71a74403e6f08bb83bcdb664345bcb318e5d5ca",
    "cross_cats_sorted": [
      "astro-ph",
      "nlin.CD"
    ],
    "license": "",
    "primary_cat": "chao-dyn",
    "submitted_at": "1999-11-10T23:09:55Z",
    "title_canon_sha256": "cf192c50751764e5283633d67b84caffb8f2d09beec44e5aa23d5249755eeead"
  },
  "schema_version": "1.0",
  "source": {
    "id": "chao-dyn/9911013",
    "kind": "arxiv",
    "version": 1
  }
}