Pith Number

pith:BLW7IUWD

pith:1999:BLW7IUWDE7WXQ22NBWI7G36QXJ

not attested not anchored not stored refs pending

Nonminimal Derivative Coupling and the Recovering of Cosmological Constant

G. Lambiase, S. Capozziello

arxiv:gr-qc/9901051 v1 · 1999-01-19 · 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{BLW7IUWDE7WXQ22NBWI7G36QXJ}

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	2026-05-18T01:39:18.166914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0aedf452c327ed786b4d0d91f36fd0ba67d9d5b0b896739c2f0fd9d246e5745c

Aliases

arxiv: gr-qc/9901051 · arxiv_version: gr-qc/9901051v1 · doi: 10.48550/arxiv.gr-qc/9901051 · pith_short_12: BLW7IUWDE7WX · pith_short_16: BLW7IUWDE7WXQ22N · pith_short_8: BLW7IUWD

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/BLW7IUWDE7WXQ22NBWI7G36QXJ \
  | 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: 0aedf452c327ed786b4d0d91f36fd0ba67d9d5b0b896739c2f0fd9d246e5745c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22ccd827f440a2cf8d38e950e68730db4a4fbea53e9bc6851902ce18c3b3cb1c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1999-01-19T10:15:58Z",
    "title_canon_sha256": "3f80249f4f469604d325743782c11a7da57bc888cebae84b3c70b38ab8c122d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9901051",
    "kind": "arxiv",
    "version": 1
  }
}