Pith Number

pith:7NPTADQI

pith:2018:7NPTADQIAPT4E7YRYKKZCG7567

not attested not anchored not stored refs pending

Time Evolution of Density Parameters for Matter and Dark Energy and their Interaction Term in Brans-Dicke Gravity

Apashanka Das, Dipika Nandi, Sudipto Roy, Sumana Ghosh

arxiv:1805.03076 v2 · 2018-05-07 · 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{7NPTADQIAPT4E7YRYKKZCG7567}

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	2026-05-17T23:46:32.082651Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb5f300e0803e7c27f11c295911bfdf7fda49699d0c400a5742b6ad85e17d907

Aliases

arxiv: 1805.03076 · arxiv_version: 1805.03076v2 · doi: 10.48550/arxiv.1805.03076 · pith_short_12: 7NPTADQIAPT4 · pith_short_16: 7NPTADQIAPT4E7YR · pith_short_8: 7NPTADQI

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/7NPTADQIAPT4E7YRYKKZCG7567 \
  | 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: fb5f300e0803e7c27f11c295911bfdf7fda49699d0c400a5742b6ad85e17d907

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "700cb520e9719bc41c5c5db243649e1a72c7839a9e1c53b9707d4fe9b579644a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-05-07T04:29:34Z",
    "title_canon_sha256": "9390b87ee60ad7cb099ac5d12814e4a12cda2fcd6d3500546e1c74368751fd3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.03076",
    "kind": "arxiv",
    "version": 2
  }
}