Pith Number

pith:LQUNPZOA

pith:2024:LQUNPZOA7KXSJGNWJ2LLFYPF77

not attested not anchored not stored refs pending

(2+1) Lorentzian quantum cosmology from spin-foams: opportunities and obstacles for semi-classicality

Alexander F. Jercher, Jos\'e Diogo Sim\~ao, Sebastian Steinhaus

arxiv:2411.08109 v3 · 2024-11-12 · gr-qc · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LQUNPZOA7KXSJGNWJ2LLFYPF77}

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	2026-07-05T10:49:48.661307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c28d7e5c0faaf2499b64e96b2e1e5ffe48e6215451c3c22a83dfe1e52ba28e3

Aliases

arxiv: 2411.08109 · arxiv_version: 2411.08109v3 · doi: 10.48550/arxiv.2411.08109 · pith_short_12: LQUNPZOA7KXS · pith_short_16: LQUNPZOA7KXSJGNW · pith_short_8: LQUNPZOA

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/LQUNPZOA7KXSJGNWJ2LLFYPF77 \
  | 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: 5c28d7e5c0faaf2499b64e96b2e1e5ffe48e6215451c3c22a83dfe1e52ba28e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0df42dbfddd3a13e069b9c4ea9ad5c33e5e431ea68152e46eedcb073ff70de8",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2024-11-12T19:00:02Z",
    "title_canon_sha256": "f3cdd92db2d04148e86b6d22077cf1d074cdd686cb778ac3e56c0cfffe2554c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2411.08109",
    "kind": "arxiv",
    "version": 3
  }
}