Pith Number

pith:Z3U2OKGT

pith:2008:Z3U2OKGTJJOO63Z7YLDHJ7MX6B

not attested not anchored not stored refs pending

Massive black hole binaries in gaseous nuclear discs

F. Haardt, L. Mayer, M. Colpi, M. Dotti

arxiv:0807.3626 v1 · 2008-07-23 · 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{Z3U2OKGTJJOO63Z7YLDHJ7MX6B}

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	2026-07-04T15:13:07.367459Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cee9a728d34a5cef6f3fc2c674fd97f062ce0ed51bf707235b9079944cd35e85

Aliases

arxiv: 0807.3626 · arxiv_version: 0807.3626v1 · doi: 10.48550/arxiv.0807.3626 · pith_short_12: Z3U2OKGTJJOO · pith_short_16: Z3U2OKGTJJOO63Z7 · pith_short_8: Z3U2OKGT

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/Z3U2OKGTJJOO63Z7YLDHJ7MX6B \
  | 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: cee9a728d34a5cef6f3fc2c674fd97f062ce0ed51bf707235b9079944cd35e85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b52961008ae3096e34a14346aee881513f4cf99c0ca79e7c764c94d722738b99",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-07-23T09:33:22Z",
    "title_canon_sha256": "30957a45211ba73136cf1457c316cb4e5e1ef07bcd4cfdbbc14f07047089c686"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.3626",
    "kind": "arxiv",
    "version": 1
  }
}