Pith Number

pith:2X524WI6

pith:2013:2X524WI6L2424XGPUISY7NVT2O

not attested not anchored not stored refs pending

Resolution of type IV singularities in quantum cosmology

Claus Kiefer, Manuel Kraemer, Mariam Bouhmadi-Lopez

arxiv:1312.5976 v2 · 2013-12-20 · 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{2X524WI6L2424XGPUISY7NVT2O}

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	2026-05-18T02:56:43.597082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5fbae591e5eb9ae5ccfa2258fb6b3d39168b1bb62f65bf275e9c299a81de9b2

Aliases

arxiv: 1312.5976 · arxiv_version: 1312.5976v2 · doi: 10.48550/arxiv.1312.5976 · pith_short_12: 2X524WI6L242 · pith_short_16: 2X524WI6L2424XGP · pith_short_8: 2X524WI6

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/2X524WI6L2424XGPUISY7NVT2O \
  | 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: d5fbae591e5eb9ae5ccfa2258fb6b3d39168b1bb62f65bf275e9c299a81de9b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f728d0a1fb0667d1acdefce86545111130f3b0ad26b6b36bbb072c0f1143b323",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-12-20T15:00:16Z",
    "title_canon_sha256": "5dc40e6729c4c20b9720eb8637b96673680c47af7ce305d96dd467fda465aa6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.5976",
    "kind": "arxiv",
    "version": 2
  }
}