Pith Number

pith:WB2Y4GX4

pith:2015:WB2Y4GX4CJQMNZWKWFV7AXUVIT

not attested not anchored not stored refs pending

Local rotational symmetry Gowdy model in Loop Quantum Gravity

Daniel Mart\'in de Blas, Javier Olmedo, Tomasz Paw{\l}owski

arxiv:1509.09197 v2 · 2015-09-30 · 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{WB2Y4GX4CJQMNZWKWFV7AXUVIT}

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	2026-05-18T00:42:07.889394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0758e1afc1260c6e6cab16bf05e9544e4f099efd5f24a6fff1e61ed175e17a9

Aliases

arxiv: 1509.09197 · arxiv_version: 1509.09197v2 · doi: 10.48550/arxiv.1509.09197 · pith_short_12: WB2Y4GX4CJQM · pith_short_16: WB2Y4GX4CJQMNZWK · pith_short_8: WB2Y4GX4

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/WB2Y4GX4CJQMNZWKWFV7AXUVIT \
  | 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: b0758e1afc1260c6e6cab16bf05e9544e4f099efd5f24a6fff1e61ed175e17a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f5572038f8e6a1046d8f8e5d28e8575700c28bdc2e011f7f1816af280b12f25",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-09-30T14:44:59Z",
    "title_canon_sha256": "5c07b4324b97f4587e34e3a9d82caf480a5db08c88d82db217f6ff2a23a97536"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.09197",
    "kind": "arxiv",
    "version": 2
  }
}