Pith Number

pith:VHQDLNSU

pith:2025:VHQDLNSULEBF6RS7WBL5HONLHH

not attested not anchored not stored refs pending

A new parametric observational study of $f(Q,B)$ gravity with modified chaplygin gas

Amit Samaddar, S. Surendra Singh

arxiv:2507.14251 v1 · 2025-07-18 · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VHQDLNSULEBF6RS7WBL5HONLHH}

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	2026-07-05T11:40:02.796742Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9e035b65459025f465fb057d3b9ab39d0a91e788bb049d90139050681f8ec81

Aliases

arxiv: 2507.14251 · arxiv_version: 2507.14251v1 · doi: 10.48550/arxiv.2507.14251 · pith_short_12: VHQDLNSULEBF · pith_short_16: VHQDLNSULEBF6RS7 · pith_short_8: VHQDLNSU

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/VHQDLNSULEBF6RS7WBL5HONLHH \
  | 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: a9e035b65459025f465fb057d3b9ab39d0a91e788bb049d90139050681f8ec81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3eb83ddc0f5d4cb2d0b75665b2ca9ba7fd7404d30ac5054bea077ee3f45e0d8c",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2025-07-18T08:50:13Z",
    "title_canon_sha256": "4d1dab4a45cb7c81de6ac9b2b7091970251289151bb6d9f9a4acd44fa74b8f8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.14251",
    "kind": "arxiv",
    "version": 1
  }
}