Pith Number

pith:XMDR7NUX

pith:2018:XMDR7NUXGOFBTVBXS77KOZKXKM

not attested not anchored not stored refs pending

Spin foam models and the Duflo map

Daniele Oriti, Marco Finocchiaro

arxiv:1812.03550 v2 · 2018-12-09 · gr-qc · hep-th · 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{XMDR7NUXGOFBTVBXS77KOZKXKM}

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

1 paper in Pith

Toller matrices and the Feynman $i\varepsilon$ in spinfoams

Receipt and verification

First computed	2026-05-17T23:43:09.240839Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb071fb697338a19d43797fea765575305f7b532a81a9566de628eb465580ad3

Aliases

arxiv: 1812.03550 · arxiv_version: 1812.03550v2 · doi: 10.48550/arxiv.1812.03550 · pith_short_12: XMDR7NUXGOFB · pith_short_16: XMDR7NUXGOFBTVBX · pith_short_8: XMDR7NUX

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/XMDR7NUXGOFBTVBXS77KOZKXKM \
  | 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: bb071fb697338a19d43797fea765575305f7b532a81a9566de628eb465580ad3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59bc05815bbf3b7384b87c9e5bd5ec1540a33302c5db78d34d4f5646f84e037b",
    "cross_cats_sorted": [
      "hep-th",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-12-09T19:44:25Z",
    "title_canon_sha256": "c635a746713f5d880ff75d5a37cb09dcb6bb661bade3eaed4af6cadce5430c05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.03550",
    "kind": "arxiv",
    "version": 2
  }
}