Pith Number

pith:XDBTJUBB

pith:2012:XDBTJUBBLNTJBI7UIAX5A6GEHH

not attested not anchored not stored refs pending

Loop quantum Brans-Dicke cosmology

Michal Artymowski, Xiangdong Zhang, Yongge Ma

arxiv:1211.4183 v2 · 2012-11-18 · 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{XDBTJUBBLNTJBI7UIAX5A6GEHH}

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	2026-05-18T03:28:05.389651Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8c334d0215b6690a3f4402fd078c439cde7df819d6d808ff25e2069ac1a48ae

Aliases

arxiv: 1211.4183 · arxiv_version: 1211.4183v2 · doi: 10.48550/arxiv.1211.4183 · pith_short_12: XDBTJUBBLNTJ · pith_short_16: XDBTJUBBLNTJBI7U · pith_short_8: XDBTJUBB

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/XDBTJUBBLNTJBI7UIAX5A6GEHH \
  | 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: b8c334d0215b6690a3f4402fd078c439cde7df819d6d808ff25e2069ac1a48ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d1913311fc061ed6142ab36fb986530ee08949224a22d73411d0f967d4fe3e9",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-11-18T02:02:06Z",
    "title_canon_sha256": "d6a26578c06a5e5481d2fa2a146d6ec6a99d62ca1a596fc02d4dfdf0a3db2646"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.4183",
    "kind": "arxiv",
    "version": 2
  }
}