Pith Number

pith:UEWS5JEW

pith:2012:UEWS5JEWOOY2NOARKKPQYQ2UFA

not attested not anchored not stored refs pending

The Spin Foam Approach to Quantum Gravity

Alejandro Perez

arxiv:1205.2019 v1 · 2012-05-09 · 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{UEWS5JEWOOY2NOARKKPQYQ2UFA}

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.

Cited by

6 papers in Pith

Spinfoams, $\gamma$-duality and parity violation in primordial gravitational waves

Gauging Time Reversal Symmetry in Quantum Gravity: Arrow of Time from a Confinement--Deconfinement Transition

The problem of time: a path integral view

Collective excitations in quantum gravity condensates

Quantum-Deformed Phase-Space Geometry and Emergent Inflation in Effective Four-Dimensional Spacetime

Receipt and verification

First computed	2026-05-18T01:57:36.013219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a12d2ea49673b1a6b811529f0c43542813022b86357a9205757dd93e68ab72d2

Aliases

arxiv: 1205.2019 · arxiv_version: 1205.2019v1 · doi: 10.48550/arxiv.1205.2019 · pith_short_12: UEWS5JEWOOY2 · pith_short_16: UEWS5JEWOOY2NOAR · pith_short_8: UEWS5JEW

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/UEWS5JEWOOY2NOARKKPQYQ2UFA \
  | 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: a12d2ea49673b1a6b811529f0c43542813022b86357a9205757dd93e68ab72d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23fd4663ea3e1f43d14234682ca048a1b3530a1a4489e65825cee113aecbf744",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-05-09T16:18:15Z",
    "title_canon_sha256": "c4fc63a66b548f88b298d4cbb682c1d7b0efd1884ab1f5ecc0f28e278aa510fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.2019",
    "kind": "arxiv",
    "version": 1
  }
}