Pith Number

pith:QZBLV5RB

pith:2011:QZBLV5RBZOZLCEEAYV3ENPXEGM

not attested not anchored not stored refs pending

Measuring Black Hole Spin by the Continuum-Fitting Method: Effect of Deviations from the Novikov-Thorne Disc Model

Akshay K. Kulkarni, Aleksander Sadowski, James F. Steiner, Jeffrey E. McClintock, Jonathan C. McKinney, Ramesh Narayan, Robert F. Penna, Roman V. Shcherbakov, Shane W. Davis, Yucong Zhu

arxiv:1102.0010 v2 · 2011-01-31 · 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{QZBLV5RBZOZLCEEAYV3ENPXEGM}

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	2026-05-18T02:03:19.831289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8642baf621cbb2b11080c57646bee4330a8c87a73c8fe5313ebf9e25f4f4077a

Aliases

arxiv: 1102.0010 · arxiv_version: 1102.0010v2 · doi: 10.48550/arxiv.1102.0010 · pith_short_12: QZBLV5RBZOZL · pith_short_16: QZBLV5RBZOZLCEEA · pith_short_8: QZBLV5RB

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/QZBLV5RBZOZLCEEAYV3ENPXEGM \
  | 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: 8642baf621cbb2b11080c57646bee4330a8c87a73c8fe5313ebf9e25f4f4077a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40774596eb2721993931232a26e6339882fc48f58f88e378fddb633f7adb22ee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-01-31T21:07:38Z",
    "title_canon_sha256": "2bc41b7529d80dc282640daa2cf7d163a671639ae545b5afa0fdb3418e58d055"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.0010",
    "kind": "arxiv",
    "version": 2
  }
}