Pith Number

pith:STVX5ZRZ

pith:2009:STVX5ZRZCKSEFGCUNXHJGH7HYP

not attested not anchored not stored refs pending

Brans-Dicke Theory and primordial black holes in Early Matter-Dominated Era

Bibekananda Nayak, Lambodar Prasad Singh

arxiv:0905.3657 v4 · 2009-05-22 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{STVX5ZRZCKSEFGCUNXHJGH7HYP}

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	2026-05-18T04:04:17.351369Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94eb7ee63912a44298546dce931fe7c3ee9cc66b6bdcae0b7db06139dfa9a0a7

Aliases

arxiv: 0905.3657 · arxiv_version: 0905.3657v4 · doi: 10.48550/arxiv.0905.3657 · pith_short_12: STVX5ZRZCKSE · pith_short_16: STVX5ZRZCKSEFGCU · pith_short_8: STVX5ZRZ

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/STVX5ZRZCKSEFGCUNXHJGH7HYP \
  | 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: 94eb7ee63912a44298546dce931fe7c3ee9cc66b6bdcae0b7db06139dfa9a0a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd6da7a50d9a54dbf327de44fdc81e1f7a4e783632005bcdf78e89af8a7b0d73",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-05-22T10:35:11Z",
    "title_canon_sha256": "1c545c84c9399b3bc4af0f8297e670a803f1c6c0fa64a886e2d1abf29b5c193f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.3657",
    "kind": "arxiv",
    "version": 4
  }
}