Pith. sign in
Pith Number

pith:EDESIPI7

pith:1997:EDESIPI7FKS4722HWXUGP56M5O
not attested not anchored not stored refs pending

On Black Hole Spins and Dichotomy of Quasars

Jean-Pierre Lasota, Marek Sikora, Rafal Moderski

arxiv:astro-ph/9706263 v3 · 1997-06-26 · astro-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{EDESIPI7FKS4722HWXUGP56M5O}

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

Receipt and verification
First computed 2026-07-04T15:07:17.478923Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

20c9243d1f2aa5cfeb47b5e867f7ccebbc8fa30ce35a67a65be51839a41047bf

Aliases

arxiv: astro-ph/9706263 · arxiv_version: astro-ph/9706263v3 · doi: 10.48550/arxiv.astro-ph/9706263 · pith_short_12: EDESIPI7FKS4 · pith_short_16: EDESIPI7FKS4722H · pith_short_8: EDESIPI7
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/EDESIPI7FKS4722HWXUGP56M5O \
  | 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: 20c9243d1f2aa5cfeb47b5e867f7ccebbc8fa30ce35a67a65be51839a41047bf
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "9860f53a247b5c1dd71a86d3aa6c57ba593dad73786c631bad628a00096ebf9d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-06-26T09:29:08Z",
    "title_canon_sha256": "68f5c9faa3af9f3dc20d827793fb2a42123919dd94e267e939abfcb65b9b7d2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9706263",
    "kind": "arxiv",
    "version": 3
  }
}