Pith Number

pith:Z4LFAS5J

pith:2015:Z4LFAS5JXPJQ5WJJZANEH7QNJH

not attested not anchored not stored refs pending

Black hole accretion discs

Jean-Pierre Lasota (Institut d'Astrophysique de Paris, Nicolaus Copernicus Astronomical Center, Warsaw)

arxiv:1505.02172 v3 · 2015-05-08 · 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{Z4LFAS5JXPJQ5WJJZANEH7QNJH}

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	2026-05-18T01:08:44.766208Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf16504ba9bbd30ed929c81a43fe0d49c5c3953dd09265c6c4d93447fb76d22d

Aliases

arxiv: 1505.02172 · arxiv_version: 1505.02172v3 · doi: 10.48550/arxiv.1505.02172 · pith_short_12: Z4LFAS5JXPJQ · pith_short_16: Z4LFAS5JXPJQ5WJJ · pith_short_8: Z4LFAS5J

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/Z4LFAS5JXPJQ5WJJZANEH7QNJH \
  | 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: cf16504ba9bbd30ed929c81a43fe0d49c5c3953dd09265c6c4d93447fb76d22d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2851b455e416f8eb3348d649b1c4afccbeb4d124a36a415ce07e5a74d202133a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-05-08T20:32:23Z",
    "title_canon_sha256": "fbc4bca0efb5ce1c6f5a1dc261d9c39175cde74e251224799c6df60fc3e742f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.02172",
    "kind": "arxiv",
    "version": 3
  }
}