Pith Number

pith:QRV3XJGD

pith:2007:QRV3XJGDRU3Z7KYBZ3RE6QVX2E

not attested not anchored not stored refs pending

Probing singularities in quantum cosmology with curvature scalars

E.V. Correa Silva, G.A. Monerat, G. Oliveira Neto, N.A. Lemos

arxiv:0708.3852 v2 · 2007-08-28 · 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{QRV3XJGDRU3Z7KYBZ3RE6QVX2E}

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	2026-05-18T02:35:30.497177Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

846bbba4c38d379fab01cee24f42b7d121df460ab52041d88ff4a008590d16a9

Aliases

arxiv: 0708.3852 · arxiv_version: 0708.3852v2 · doi: 10.48550/arxiv.0708.3852 · pith_short_12: QRV3XJGDRU3Z · pith_short_16: QRV3XJGDRU3Z7KYB · pith_short_8: QRV3XJGD

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/QRV3XJGDRU3Z7KYBZ3RE6QVX2E \
  | 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: 846bbba4c38d379fab01cee24f42b7d121df460ab52041d88ff4a008590d16a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc556833c6d8e5722ecbb43f74b64d3daad08bba3d855825f950916625bbb3a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2007-08-28T20:13:48Z",
    "title_canon_sha256": "79f63d93d04d6d38d80e8dfa875f6e569b83e37a37bfa08d52bf56fc16b73f9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0708.3852",
    "kind": "arxiv",
    "version": 2
  }
}