Pith Number

pith:UJB4GHYE

pith:2013:UJB4GHYEEQLMXXZ6PQNZGKE4C4

not attested not anchored not stored refs pending

Singularity avoidance in the hybrid quantization of the Gowdy model

Guillermo A. Mena Marug\'an, Mikel Fern\'andez-M\'endez, Paula Tarr\'io

arxiv:1310.1290 v2 · 2013-10-04 · 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{UJB4GHYEEQLMXXZ6PQNZGKE4C4}

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	2026-05-18T03:07:54.198363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a243c31f042416cbdf3e7c1b93289c17385c87c6e8e4f7377722d3f2c611c76c

Aliases

arxiv: 1310.1290 · arxiv_version: 1310.1290v2 · doi: 10.48550/arxiv.1310.1290 · pith_short_12: UJB4GHYEEQLM · pith_short_16: UJB4GHYEEQLMXXZ6 · pith_short_8: UJB4GHYE

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/UJB4GHYEEQLMXXZ6PQNZGKE4C4 \
  | 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: a243c31f042416cbdf3e7c1b93289c17385c87c6e8e4f7377722d3f2c611c76c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1bc612486ff8239c9d2bbef69505a22588e17afc0912296e84cdf993aa8fc257",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-10-04T14:31:55Z",
    "title_canon_sha256": "d099254142533257b5b1e9404faa31c8fe706ef6b3f181d770e6a62083b14951"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.1290",
    "kind": "arxiv",
    "version": 2
  }
}