Pith Number

pith:XG6W3FUL

pith:2005:XG6W3FUL5JCCPLFHSHCKYOGUCS

not attested not anchored not stored refs pending

Estimating the Spin of Stellar-Mass Black Holes via Spectral Fitting of the X-ray Continuum

Jeffrey E. McClintock, Li-Xin Li, Ramesh Narayan, Rebecca Shafee, Ronald A. Remillard, Shane W. Davis

arxiv:astro-ph/0508302 v2 · 2005-08-14 · astro-ph · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XG6W3FUL5JCCPLFHSHCKYOGUCS}

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

2 papers in Pith

Simulation-Based Prediction of Black Hole Fe K$\alpha$ Line Profiles

Testing General Relativity with Present and Future Astrophysical Observations

Receipt and verification

First computed	2026-07-04T17:15:00.554726Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9bd6d968bea4427aca791c4ac38d414a1dc2e16ab9f165a43e6eb8fa425d903

Aliases

arxiv: astro-ph/0508302 · arxiv_version: astro-ph/0508302v2 · doi: 10.48550/arxiv.astro-ph/0508302 · pith_short_12: XG6W3FUL5JCC · pith_short_16: XG6W3FUL5JCCPLFH · pith_short_8: XG6W3FUL

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/XG6W3FUL5JCCPLFHSHCKYOGUCS \
  | 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: b9bd6d968bea4427aca791c4ac38d414a1dc2e16ab9f165a43e6eb8fa425d903

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9ef24b112065447accc23383ba797a1c2b45e4df799e87ec680021a0de22ad9",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-08-14T15:20:01Z",
    "title_canon_sha256": "e48726a0d222bf91e0a60beda684f3bf9ea81224949619dd5c1a63894e8b7610"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0508302",
    "kind": "arxiv",
    "version": 2
  }
}