Pith Number

pith:67MUBFFW

pith:1999:67MUBFFWENGOU53WU6YCONTDKE

not attested not anchored not stored refs pending

Optical Lightcurves of the Black Hole Binaries GRS 1124-68 and A0620-00 in Outburst: the Importance of Irradiation

Ann A. Esin (CALTECH), Erik Kuulkers (Space Research Organization Netherlands; Utrecht University), Jeffrey E. McClintock, Ramesh Narayan (Harvard-Smithsonian Center for Astrophysics)

arxiv:astro-ph/9911197 v1 · 1999-11-11 · 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{67MUBFFWENGOU53WU6YCONTDKE}

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	2026-07-04T16:11:53.803804Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7d94094b6234cea7776a7b0273663510bdb74ddc3bc5f77d5e8f5880b58a260

Aliases

arxiv: astro-ph/9911197 · arxiv_version: astro-ph/9911197v1 · doi: 10.48550/arxiv.astro-ph/9911197 · pith_short_12: 67MUBFFWENGO · pith_short_16: 67MUBFFWENGOU53W · pith_short_8: 67MUBFFW

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/67MUBFFWENGOU53WU6YCONTDKE \
  | 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: f7d94094b6234cea7776a7b0273663510bdb74ddc3bc5f77d5e8f5880b58a260

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42ea5780dac0f9aff835950bd2a3bac5b0423875c0325a02cc4a0a536fbee161",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-11-11T04:16:39Z",
    "title_canon_sha256": "9ee9aa0b999ed173cd65bdde0a82b53c8bc63aec89955481e4564316f92d6d63"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9911197",
    "kind": "arxiv",
    "version": 1
  }
}