Pith Number

pith:FQKWZKE2

pith:2010:FQKWZKE2JZOLZAR72IO3DQMTTZ

not attested not anchored not stored refs pending

Astrophysical constraints on primordial black holes in Brans-Dicke theory

A. S. Majumdar, B. Nayak, L. P. Singh

arxiv:1002.3472 v3 · 2010-02-18 · gr-qc · 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{FQKWZKE2JZOLZAR72IO3DQMTTZ}

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	2026-05-18T04:04:17.296545Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c156ca89a4e5cbc823fd21db1c1939e5020d8dc6609f4cb9de3aa636ad79c24

Aliases

arxiv: 1002.3472 · arxiv_version: 1002.3472v3 · doi: 10.48550/arxiv.1002.3472 · pith_short_12: FQKWZKE2JZOL · pith_short_16: FQKWZKE2JZOLZAR7 · pith_short_8: FQKWZKE2

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/FQKWZKE2JZOLZAR72IO3DQMTTZ \
  | 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: 2c156ca89a4e5cbc823fd21db1c1939e5020d8dc6609f4cb9de3aa636ad79c24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8a43c469ec836ae938b07dee1c7a4ea995953c97b9ce97e70fd3d19cf7709f8",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-02-18T10:15:15Z",
    "title_canon_sha256": "32e096c3161f01979c03238b56f20af142edd119808dce79bf038024bb791025"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.3472",
    "kind": "arxiv",
    "version": 3
  }
}