Pith Number

pith:QAFGSXEM

pith:2011:QAFGSXEMX6KOSUT2KKG2IB3II3

not attested not anchored not stored refs pending

From Quantum Gravity to Quantum Field Theory via Noncommutative Geometry

Jesper M. Grimstrup, Johannes Aastrup

arxiv:1105.0194 v1 · 2011-05-01 · hep-th · gr-qc · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QAFGSXEMX6KOSUT2KKG2IB3II3}

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	2026-05-18T04:23:12.323260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

800a695c8cbf94e9527a528da4076846fb67d3d8b0d1607d79f231912bbda757

Aliases

arxiv: 1105.0194 · arxiv_version: 1105.0194v1 · doi: 10.48550/arxiv.1105.0194 · pith_short_12: QAFGSXEMX6KO · pith_short_16: QAFGSXEMX6KOSUT2 · pith_short_8: QAFGSXEM

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/QAFGSXEMX6KOSUT2KKG2IB3II3 \
  | 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: 800a695c8cbf94e9527a528da4076846fb67d3d8b0d1607d79f231912bbda757

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ecb12161499b851842891332adc4826910ab467b3b92933abfeaae0262401e95",
    "cross_cats_sorted": [
      "gr-qc",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2011-05-01T19:32:52Z",
    "title_canon_sha256": "cad82b8ab6b5462855a6649134ebbbd1a69cf2bf5bf009dc544f8bbe0a3d22b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.0194",
    "kind": "arxiv",
    "version": 1
  }
}