Pith Number

pith:QTW3QGYD

pith:1999:QTW3QGYDTLLGFUV5EVTEK3CKKB

not attested not anchored not stored refs pending

Distribution of black hole binaries around galaxies

Krzysztof Belczynski, Tomasz Bulik, Wojciech Zbijewski

arxiv:astro-ph/9911435 v1 · 1999-11-23 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QTW3QGYDTLLGFUV5EVTEK3CKKB}

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	2026-05-18T01:07:35.770386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84edb81b039ad662d2bd2566456c4a504a05c89113678cafc9c5e7cd1cea8555

Aliases

arxiv: astro-ph/9911435 · arxiv_version: astro-ph/9911435v1 · doi: 10.48550/arxiv.astro-ph/9911435 · pith_short_12: QTW3QGYDTLLG · pith_short_16: QTW3QGYDTLLGFUV5 · pith_short_8: QTW3QGYD

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/QTW3QGYDTLLGFUV5EVTEK3CKKB \
  | 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: 84edb81b039ad662d2bd2566456c4a504a05c89113678cafc9c5e7cd1cea8555

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8face2b8795fdaf3964f6dd183c7338d8560fff93ac6d33795547761b189996c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-11-23T14:32:37Z",
    "title_canon_sha256": "ec188deb6d82c4a90f574b8277e09f5afc5b7f045af1334615a060c81ad10e6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9911435",
    "kind": "arxiv",
    "version": 1
  }
}