Pith Number

pith:MMZFU6IP

pith:2002:MMZFU6IPKOXA6MXTELK457VGMC

not attested not anchored not stored refs pending

Rapid Optical Fluctuations in the Black Hole Binary, V4641 Sgr

(2) Okayama University of Science), Berto Monard, Charles Bailyn, Kenji Tanabe (2), Makoto Uemura (1), Peter Nelson, Rod Stubbings, Roland Santallo ((1) Kyoto University, Ryoko Ishioka (1), Seiichiro Kiyota, Taichi Kato (1), Tom Richards

arxiv:astro-ph/0208146 v1 · 2002-08-07 · 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{MMZFU6IPKOXA6MXTELK457VGMC}

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	2026-05-18T01:40:42.382572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63325a790f53ae0f32f322d5cefea660a4cbcce6460efcb6d49ebfe3cfae9285

Aliases

arxiv: astro-ph/0208146 · arxiv_version: astro-ph/0208146v1 · doi: 10.48550/arxiv.astro-ph/0208146 · pith_short_12: MMZFU6IPKOXA · pith_short_16: MMZFU6IPKOXA6MXT · pith_short_8: MMZFU6IP

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/MMZFU6IPKOXA6MXTELK457VGMC \
  | 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: 63325a790f53ae0f32f322d5cefea660a4cbcce6460efcb6d49ebfe3cfae9285

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db8fe64ce2c74aeac3e5aa7857d0210f995abce7eafb9dfce73599a4882ad365",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-08-07T08:58:24Z",
    "title_canon_sha256": "cafdd2ef182ce93c59668059f2b382b37c9393a7526d7cf9a5410d480f8957b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0208146",
    "kind": "arxiv",
    "version": 1
  }
}