Pith Number

pith:NXO7DTZH

pith:2009:NXO7DTZHXL224QRJJBEOV6CXCL

not attested not anchored not stored refs pending

Determination of Black Hole Masses in Galactic Black Hole Binaries using Scaling of Spectral and Variability Characteristics

Lev Titarchuk (NRL/GMU/GSFC/University of Ferrara/ICRANET), Nickolai Shaposhnikov (GSFC/CRESST/UMD)

arxiv:0902.2852 v1 · 2009-02-17 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NXO7DTZHXL224QRJJBEOV6CXCL}

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.

Cited by

1 paper in Pith

An atypical X-ray variability component in the black hole candidate AT2019wey

Receipt and verification

First computed	2026-05-18T04:29:16.488584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6dddf1cf27baf5ae42294848eaf85712f2d8a19715c5297045987b47b900b9d9

Aliases

arxiv: 0902.2852 · arxiv_version: 0902.2852v1 · doi: 10.48550/arxiv.0902.2852 · pith_short_12: NXO7DTZHXL22 · pith_short_16: NXO7DTZHXL224QRJ · pith_short_8: NXO7DTZH

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/NXO7DTZHXL224QRJJBEOV6CXCL \
  | 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: 6dddf1cf27baf5ae42294848eaf85712f2d8a19715c5297045987b47b900b9d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8cea3ed486c73fd42e12ff8c8179dc7bd9ceb6c27c2740321f82b2b7dc359155",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-02-17T08:10:01Z",
    "title_canon_sha256": "58cf9fdd139371697d4a86862dce3e2470c7e6c960200500e8a6ddb13428acea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.2852",
    "kind": "arxiv",
    "version": 1
  }
}