Pith Number

pith:C4VG46VQ

pith:2009:C4VG46VQRBCE3YKEJ2UK4MFWZM

not attested not anchored not stored refs pending

Massive black hole binary evolution in gas-rich mergers

L. Mayer, M. Colpi, M. Dotti, S. Callegari

arxiv:0904.0385 v1 · 2009-04-02 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C4VG46VQRBCE3YKEJ2UK4MFWZM}

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	2026-05-18T02:34:59.978156Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

172a6e7ab088444de1444ea8ae30b6cb12bde04e5af5ef049746c8f6c62f750c

Aliases

arxiv: 0904.0385 · arxiv_version: 0904.0385v1 · doi: 10.48550/arxiv.0904.0385 · pith_short_12: C4VG46VQRBCE · pith_short_16: C4VG46VQRBCE3YKE · pith_short_8: C4VG46VQ

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/C4VG46VQRBCE3YKEJ2UK4MFWZM \
  | 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: 172a6e7ab088444de1444ea8ae30b6cb12bde04e5af5ef049746c8f6c62f750c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21f4c94e8ed7c37440571a2632957ab5b5ac5efb63409fd2749895d6994e55ba",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-04-02T13:42:04Z",
    "title_canon_sha256": "29d25c5d8c979d344623080f259bda9e780e2c9e7d90ca32531731343a201759"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0385",
    "kind": "arxiv",
    "version": 1
  }
}